When livepatch is attached to the same function as bpf trampoline with
a fexit program, bpf trampoline code calls register_ftrace_direct()
twice. The first time will fail with -EAGAIN, and the second time it
will succeed. This requires register_ftrace_direct() to unregister
the address on the first attempt. Otherwise, the bpf trampoline cannot
attach. Here is an easy way to reproduce this issue:
insmod samples/livepatch/livepatch-sample.ko
bpftrace -e 'fexit:cmdline_proc_show {}'
ERROR: Unable to attach probe: fexit:vmlinux:cmdline_proc_show...
Fix this by cleaning up the hash when register_ftrace_function_nolock hits
errors.
Also, move the code that resets ops->func and ops->trampoline to the error
path of register_ftrace_direct(); and add a helper function reset_direct()
in register_ftrace_direct() and unregister_ftrace_direct().
Fixes: d05cb470663a ("ftrace: Fix modification of direct_function hash while in use")
Cc: stable(a)vger.kernel.org # v6.6+
Reported-by: Andrey Grodzovsky <andrey.grodzovsky(a)crowdstrike.com>
Closes: https://lore.kernel.org/live-patching/c5058315a39d4615b333e485893345be@crow…
Cc: Steven Rostedt (Google) <rostedt(a)goodmis.org>
Cc: Masami Hiramatsu (Google) <mhiramat(a)kernel.org>
Acked-and-tested-by: Andrey Grodzovsky <andrey.grodzovsky(a)crowdstrike.com>
Signed-off-by: Song Liu <song(a)kernel.org>
Reviewed-by: Jiri Olsa <jolsa(a)kernel.org>
---
kernel/bpf/trampoline.c | 5 -----
kernel/trace/ftrace.c | 20 ++++++++++++++------
2 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/kernel/bpf/trampoline.c b/kernel/bpf/trampoline.c
index 5949095e51c3..f2cb0b097093 100644
--- a/kernel/bpf/trampoline.c
+++ b/kernel/bpf/trampoline.c
@@ -479,11 +479,6 @@ static int bpf_trampoline_update(struct bpf_trampoline *tr, bool lock_direct_mut
* BPF_TRAMP_F_SHARE_IPMODIFY is set, we can generate the
* trampoline again, and retry register.
*/
- /* reset fops->func and fops->trampoline for re-register */
- tr->fops->func = NULL;
- tr->fops->trampoline = 0;
-
- /* free im memory and reallocate later */
bpf_tramp_image_free(im);
goto again;
}
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 42bd2ba68a82..cbeb7e833131 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -5953,6 +5953,17 @@ static void register_ftrace_direct_cb(struct rcu_head *rhp)
free_ftrace_hash(fhp);
}
+static void reset_direct(struct ftrace_ops *ops, unsigned long addr)
+{
+ struct ftrace_hash *hash = ops->func_hash->filter_hash;
+
+ remove_direct_functions_hash(hash, addr);
+
+ /* cleanup for possible another register call */
+ ops->func = NULL;
+ ops->trampoline = 0;
+}
+
/**
* register_ftrace_direct - Call a custom trampoline directly
* for multiple functions registered in @ops
@@ -6048,6 +6059,8 @@ int register_ftrace_direct(struct ftrace_ops *ops, unsigned long addr)
ops->direct_call = addr;
err = register_ftrace_function_nolock(ops);
+ if (err)
+ reset_direct(ops, addr);
out_unlock:
mutex_unlock(&direct_mutex);
@@ -6080,7 +6093,6 @@ EXPORT_SYMBOL_GPL(register_ftrace_direct);
int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long addr,
bool free_filters)
{
- struct ftrace_hash *hash = ops->func_hash->filter_hash;
int err;
if (check_direct_multi(ops))
@@ -6090,13 +6102,9 @@ int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long addr,
mutex_lock(&direct_mutex);
err = unregister_ftrace_function(ops);
- remove_direct_functions_hash(hash, addr);
+ reset_direct(ops, addr);
mutex_unlock(&direct_mutex);
- /* cleanup for possible another register call */
- ops->func = NULL;
- ops->trampoline = 0;
-
if (free_filters)
ftrace_free_filter(ops);
return err;
--
2.47.3
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x f3d12ec847b945d5d65846c85f062d07d5e73164
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102713-cucumber-persevere-aa50@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f3d12ec847b945d5d65846c85f062d07d5e73164 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Date: Tue, 14 Oct 2025 01:55:41 +0300
Subject: [PATCH] xhci: dbc: fix bogus 1024 byte prefix if ttyDBC read races
with stall event
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
DbC may add 1024 bogus bytes to the beginneing of the receiving endpoint
if DbC hw triggers a STALL event before any Transfer Blocks (TRBs) for
incoming data are queued, but driver handles the event after it queued
the TRBs.
This is possible as xHCI DbC hardware may trigger spurious STALL transfer
events even if endpoint is empty. The STALL event contains a pointer
to the stalled TRB, and "remaining" untransferred data length.
As there are no TRBs queued yet the STALL event will just point to first
TRB position of the empty ring, with '0' bytes remaining untransferred.
DbC driver is polling for events, and may not handle the STALL event
before /dev/ttyDBC0 is opened and incoming data TRBs are queued.
The DbC event handler will now assume the first queued TRB (length 1024)
has stalled with '0' bytes remaining untransferred, and copies the data
This race situation can be practically mitigated by making sure the event
handler handles all pending transfer events when DbC reaches configured
state, and only then create dev/ttyDbC0, and start queueing transfers.
The event handler can this way detect the STALL events on empty rings
and discard them before any transfers are queued.
This does in practice solve the issue, but still leaves a small possible
gap for the race to trigger.
We still need a way to distinguish spurious STALLs on empty rings with '0'
bytes remaing, from actual STALL events with all bytes transmitted.
Cc: stable <stable(a)kernel.org>
Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver")
Tested-by: Łukasz Bartosik <ukaszb(a)chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 63edf2d8f245..023a8ec6f305 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -892,7 +892,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
dev_info(dbc->dev, "DbC configured\n");
portsc = readl(&dbc->regs->portsc);
writel(portsc, &dbc->regs->portsc);
- return EVT_GSER;
+ ret = EVT_GSER;
+ break;
}
return EVT_DONE;
@@ -954,7 +955,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
break;
case TRB_TYPE(TRB_TRANSFER):
dbc_handle_xfer_event(dbc, evt);
- ret = EVT_XFER_DONE;
+ if (ret != EVT_GSER)
+ ret = EVT_XFER_DONE;
break;
default:
break;
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x daeb4037adf7d3349b4a1fb792f4bc9824686a4b
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102700-impish-precook-5377@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From daeb4037adf7d3349b4a1fb792f4bc9824686a4b Mon Sep 17 00:00:00 2001
From: Artem Shimko <a.shimko.dev(a)gmail.com>
Date: Sun, 19 Oct 2025 12:51:31 +0300
Subject: [PATCH] serial: 8250_dw: handle reset control deassert error
Check the return value of reset_control_deassert() in the probe
function to prevent continuing probe when reset deassertion fails.
Previously, reset_control_deassert() was called without checking its
return value, which could lead to probe continuing even when the
device reset wasn't properly deasserted.
The fix checks the return value and returns an error with dev_err_probe()
if reset deassertion fails, providing better error handling and
diagnostics.
Fixes: acbdad8dd1ab ("serial: 8250_dw: simplify optional reset handling")
Cc: stable <stable(a)kernel.org>
Signed-off-by: Artem Shimko <a.shimko.dev(a)gmail.com>
Link: https://patch.msgid.link/20251019095131.252848-1-a.shimko.dev@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index a53ba04d9770..710ae4d40aec 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -635,7 +635,9 @@ static int dw8250_probe(struct platform_device *pdev)
if (IS_ERR(data->rst))
return PTR_ERR(data->rst);
- reset_control_deassert(data->rst);
+ err = reset_control_deassert(data->rst);
+ if (err)
+ return dev_err_probe(dev, err, "failed to deassert resets\n");
err = devm_add_action_or_reset(dev, dw8250_reset_control_assert, data->rst);
if (err)
In some specific scenario it's possible that the
pci_create_resource_files() gets called multiple times and the created
entry actually gets wrongly deleted with extreme case of having a NULL
pointer dereference when the PCI is removed.
This mainly happen due to bad timing where the PCI bus is adding PCI
devices and at the same time the sysfs code is adding the entry causing
double execution of the pci_create_resource_files function and kernel
WARNING.
To be more precise there is a race between the late_initcall of
pci-sysfs with pci_sysfs_init and PCI bus.c pci_bus_add_device that also
call pci_create_sysfs_dev_files.
With correct amount of ""luck"" (or better say bad luck)
pci_create_sysfs_dev_files in bus.c might be called with pci_sysfs_init
is executing the loop.
This has been reported multiple times and on multiple system, like imx6
system, ipq806x systems...
To address this, imlement multiple improvement to the implementation:
1. Add a bool to pci_dev to flag when sysfs entry are created
(sysfs_init)
2. Implement a simple completion to wait pci_sysfs_init execution.
3. Permit additional call of pci_create_sysfs_dev_files only after
pci_sysfs_init has finished.
With such logic in place, we address al kind of timing problem with
minimal change to any driver.
A notice worth to mention is that the remove function are not affected
by this as the pci_remove_resource_files have enough check in place to
always work and it's always called by pci_stop_dev.
Cc: stable(a)vger.kernel.org
Reported-by: Krzysztof Hałasa <khalasa(a)piap.pl>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=215515
Signed-off-by: Christian Marangi <ansuelsmth(a)gmail.com>
---
drivers/pci/pci-sysfs.c | 34 +++++++++++++++++++++++++++++-----
include/linux/pci.h | 1 +
2 files changed, 30 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 71a36f57ef57..cab3aa27f947 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -14,6 +14,7 @@
*/
#include <linux/bitfield.h>
+#include <linux/completion.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/pci.h>
@@ -37,6 +38,7 @@
#endif
static int sysfs_initialized; /* = 0 */
+static DECLARE_COMPLETION(sysfs_init_completion);
/* show configuration fields */
#define pci_config_attr(field, format_string) \
@@ -1652,12 +1654,32 @@ static const struct attribute_group pci_dev_resource_resize_group = {
.is_visible = resource_resize_is_visible,
};
+static int __pci_create_sysfs_dev_files(struct pci_dev *pdev)
+{
+ int ret;
+
+ ret = pci_create_resource_files(pdev);
+ if (ret)
+ return ret;
+
+ /* on success set sysfs correctly created */
+ pdev->sysfs_init = true;
+ return 0;
+}
+
int __must_check pci_create_sysfs_dev_files(struct pci_dev *pdev)
{
if (!sysfs_initialized)
return -EACCES;
- return pci_create_resource_files(pdev);
+ /* sysfs entry already created */
+ if (pdev->sysfs_init)
+ return 0;
+
+ /* wait for pci_sysfs_init */
+ wait_for_completion(&sysfs_init_completion);
+
+ return __pci_create_sysfs_dev_files(pdev);
}
/**
@@ -1678,21 +1700,23 @@ static int __init pci_sysfs_init(void)
{
struct pci_dev *pdev = NULL;
struct pci_bus *pbus = NULL;
- int retval;
+ int retval = 0;
sysfs_initialized = 1;
for_each_pci_dev(pdev) {
- retval = pci_create_sysfs_dev_files(pdev);
+ retval = __pci_create_sysfs_dev_files(pdev);
if (retval) {
pci_dev_put(pdev);
- return retval;
+ goto exit;
}
}
while ((pbus = pci_find_next_bus(pbus)))
pci_create_legacy_files(pbus);
- return 0;
+exit:
+ complete_all(&sysfs_init_completion);
+ return retval;
}
late_initcall(pci_sysfs_init);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index f3f6d6dee3ae..f417a0528f01 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -480,6 +480,7 @@ struct pci_dev {
unsigned int non_mappable_bars:1; /* BARs can't be mapped to user-space */
pci_dev_flags_t dev_flags;
atomic_t enable_cnt; /* pci_enable_device has been called */
+ bool sysfs_init; /* sysfs entry has been created */
spinlock_t pcie_cap_lock; /* Protects RMW ops in capability accessors */
u32 saved_config_space[16]; /* Config space saved at suspend time */
--
2.51.0
When livepatch is attached to the same function as bpf trampoline with
a fexit program, bpf trampoline code calls register_ftrace_direct()
twice. The first time will fail with -EAGAIN, and the second time it
will succeed. This requires register_ftrace_direct() to unregister
the address on the first attempt. Otherwise, the bpf trampoline cannot
attach. Here is an easy way to reproduce this issue:
insmod samples/livepatch/livepatch-sample.ko
bpftrace -e 'fexit:cmdline_proc_show {}'
ERROR: Unable to attach probe: fexit:vmlinux:cmdline_proc_show...
Fix this by cleaning up the hash when register_ftrace_function_nolock hits
errors.
Also, move the code that resets ops->func and ops->trampoline to
the error path of register_ftrace_direct().
Fixes: d05cb470663a ("ftrace: Fix modification of direct_function hash while in use")
Cc: stable(a)vger.kernel.org # v6.6+
Reported-by: Andrey Grodzovsky <andrey.grodzovsky(a)crowdstrike.com>
Closes: https://lore.kernel.org/live-patching/c5058315a39d4615b333e485893345be@crow…
Cc: Steven Rostedt (Google) <rostedt(a)goodmis.org>
Cc: Masami Hiramatsu (Google) <mhiramat(a)kernel.org>
Acked-and-tested-by: Andrey Grodzovsky <andrey.grodzovsky(a)crowdstrike.com>
Signed-off-by: Song Liu <song(a)kernel.org>
---
kernel/bpf/trampoline.c | 5 -----
kernel/trace/ftrace.c | 6 ++++++
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/kernel/bpf/trampoline.c b/kernel/bpf/trampoline.c
index 5949095e51c3..f2cb0b097093 100644
--- a/kernel/bpf/trampoline.c
+++ b/kernel/bpf/trampoline.c
@@ -479,11 +479,6 @@ static int bpf_trampoline_update(struct bpf_trampoline *tr, bool lock_direct_mut
* BPF_TRAMP_F_SHARE_IPMODIFY is set, we can generate the
* trampoline again, and retry register.
*/
- /* reset fops->func and fops->trampoline for re-register */
- tr->fops->func = NULL;
- tr->fops->trampoline = 0;
-
- /* free im memory and reallocate later */
bpf_tramp_image_free(im);
goto again;
}
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 42bd2ba68a82..725c224fb4e6 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -6048,6 +6048,12 @@ int register_ftrace_direct(struct ftrace_ops *ops, unsigned long addr)
ops->direct_call = addr;
err = register_ftrace_function_nolock(ops);
+ if (err) {
+ /* cleanup for possible another register call */
+ ops->func = NULL;
+ ops->trampoline = 0;
+ remove_direct_functions_hash(hash, addr);
+ }
out_unlock:
mutex_unlock(&direct_mutex);
--
2.47.3
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x e84cb860ac3ce67ec6ecc364433fd5b412c448bc
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102642-improper-revered-93ac@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From e84cb860ac3ce67ec6ecc364433fd5b412c448bc Mon Sep 17 00:00:00 2001
From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org>
Date: Mon, 20 Oct 2025 22:53:26 +0200
Subject: [PATCH] mptcp: pm: in-kernel: C-flag: handle late ADD_ADDR
The special C-flag case expects the ADD_ADDR to be received when
switching to 'fully-established'. But for various reasons, the ADD_ADDR
could be sent after the "4th ACK", and the special case doesn't work.
On NIPA, the new test validating this special case for the C-flag failed
a few times, e.g.
102 default limits, server deny join id 0
syn rx [FAIL] got 0 JOIN[s] syn rx expected 2
Server ns stats
(...)
MPTcpExtAddAddrTx 1
MPTcpExtEchoAdd 1
Client ns stats
(...)
MPTcpExtAddAddr 1
MPTcpExtEchoAddTx 1
synack rx [FAIL] got 0 JOIN[s] synack rx expected 2
ack rx [FAIL] got 0 JOIN[s] ack rx expected 2
join Rx [FAIL] see above
syn tx [FAIL] got 0 JOIN[s] syn tx expected 2
join Tx [FAIL] see above
I had a suspicion about what the issue could be: the ADD_ADDR might have
been received after the switch to the 'fully-established' state. The
issue was not easy to reproduce. The packet capture shown that the
ADD_ADDR can indeed be sent with a delay, and the client would not try
to establish subflows to it as expected.
A simple fix is not to mark the endpoints as 'used' in the C-flag case,
when looking at creating subflows to the remote initial IP address and
port. In this case, there is no need to try.
Note: newly added fullmesh endpoints will still continue to be used as
expected, thanks to the conditions behind mptcp_pm_add_addr_c_flag_case.
Fixes: 4b1ff850e0c1 ("mptcp: pm: in-kernel: usable client side with C-flag")
Cc: stable(a)vger.kernel.org
Reviewed-by: Geliang Tang <geliang(a)kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org>
Link: https://patch.msgid.link/20251020-net-mptcp-c-flag-late-add-addr-v1-1-82070…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c
index e0f44dc232aa..2ae95476dba3 100644
--- a/net/mptcp/pm_kernel.c
+++ b/net/mptcp/pm_kernel.c
@@ -370,6 +370,10 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
}
subflow:
+ /* No need to try establishing subflows to remote id0 if not allowed */
+ if (mptcp_pm_add_addr_c_flag_case(msk))
+ goto exit;
+
/* check if should create a new subflow */
while (msk->pm.local_addr_used < endp_subflow_max &&
msk->pm.extra_subflows < limit_extra_subflows) {
@@ -401,6 +405,8 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
__mptcp_subflow_connect(sk, &local, &addrs[i]);
spin_lock_bh(&msk->pm.lock);
}
+
+exit:
mptcp_pm_nl_check_work_pending(msk);
}
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x f3d12ec847b945d5d65846c85f062d07d5e73164
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102712-unearned-duplicate-8c3b@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f3d12ec847b945d5d65846c85f062d07d5e73164 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Date: Tue, 14 Oct 2025 01:55:41 +0300
Subject: [PATCH] xhci: dbc: fix bogus 1024 byte prefix if ttyDBC read races
with stall event
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
DbC may add 1024 bogus bytes to the beginneing of the receiving endpoint
if DbC hw triggers a STALL event before any Transfer Blocks (TRBs) for
incoming data are queued, but driver handles the event after it queued
the TRBs.
This is possible as xHCI DbC hardware may trigger spurious STALL transfer
events even if endpoint is empty. The STALL event contains a pointer
to the stalled TRB, and "remaining" untransferred data length.
As there are no TRBs queued yet the STALL event will just point to first
TRB position of the empty ring, with '0' bytes remaining untransferred.
DbC driver is polling for events, and may not handle the STALL event
before /dev/ttyDBC0 is opened and incoming data TRBs are queued.
The DbC event handler will now assume the first queued TRB (length 1024)
has stalled with '0' bytes remaining untransferred, and copies the data
This race situation can be practically mitigated by making sure the event
handler handles all pending transfer events when DbC reaches configured
state, and only then create dev/ttyDbC0, and start queueing transfers.
The event handler can this way detect the STALL events on empty rings
and discard them before any transfers are queued.
This does in practice solve the issue, but still leaves a small possible
gap for the race to trigger.
We still need a way to distinguish spurious STALLs on empty rings with '0'
bytes remaing, from actual STALL events with all bytes transmitted.
Cc: stable <stable(a)kernel.org>
Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver")
Tested-by: Łukasz Bartosik <ukaszb(a)chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 63edf2d8f245..023a8ec6f305 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -892,7 +892,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
dev_info(dbc->dev, "DbC configured\n");
portsc = readl(&dbc->regs->portsc);
writel(portsc, &dbc->regs->portsc);
- return EVT_GSER;
+ ret = EVT_GSER;
+ break;
}
return EVT_DONE;
@@ -954,7 +955,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
break;
case TRB_TYPE(TRB_TRANSFER):
dbc_handle_xfer_event(dbc, evt);
- ret = EVT_XFER_DONE;
+ if (ret != EVT_GSER)
+ ret = EVT_XFER_DONE;
break;
default:
break;
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 268eb6fb908bc82ce479e4dba9a2cad11f536c9c
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102701-congrats-attire-807b@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 268eb6fb908bc82ce479e4dba9a2cad11f536c9c Mon Sep 17 00:00:00 2001
From: Xu Yang <xu.yang_2(a)nxp.com>
Date: Fri, 19 Sep 2025 14:25:34 +0800
Subject: [PATCH] dt-bindings: usb: dwc3-imx8mp: dma-range is required only for
imx8mp
Only i.MX8MP need dma-range property to let USB controller work properly.
Remove dma-range from required list and add limitation for imx8mp.
Fixes: d2a704e29711 ("dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings")
Cc: stable <stable(a)kernel.org>
Reviewed-by: Jun Li <jun.li(a)nxp.com>
Signed-off-by: Xu Yang <xu.yang_2(a)nxp.com>
Reviewed-by: Frank Li <Frank.Li(a)nxp.com>
Acked-by: Conor Dooley <conor.dooley(a)microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
index baf130669c38..73e7a60a0060 100644
--- a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
@@ -89,13 +89,21 @@ required:
- reg
- "#address-cells"
- "#size-cells"
- - dma-ranges
- ranges
- clocks
- clock-names
- interrupts
- power-domains
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: fsl,imx8mp-dwc3
+ then:
+ required:
+ - dma-ranges
+
additionalProperties: false
examples:
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x e84cb860ac3ce67ec6ecc364433fd5b412c448bc
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102638-brewery-wanting-8089@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From e84cb860ac3ce67ec6ecc364433fd5b412c448bc Mon Sep 17 00:00:00 2001
From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org>
Date: Mon, 20 Oct 2025 22:53:26 +0200
Subject: [PATCH] mptcp: pm: in-kernel: C-flag: handle late ADD_ADDR
The special C-flag case expects the ADD_ADDR to be received when
switching to 'fully-established'. But for various reasons, the ADD_ADDR
could be sent after the "4th ACK", and the special case doesn't work.
On NIPA, the new test validating this special case for the C-flag failed
a few times, e.g.
102 default limits, server deny join id 0
syn rx [FAIL] got 0 JOIN[s] syn rx expected 2
Server ns stats
(...)
MPTcpExtAddAddrTx 1
MPTcpExtEchoAdd 1
Client ns stats
(...)
MPTcpExtAddAddr 1
MPTcpExtEchoAddTx 1
synack rx [FAIL] got 0 JOIN[s] synack rx expected 2
ack rx [FAIL] got 0 JOIN[s] ack rx expected 2
join Rx [FAIL] see above
syn tx [FAIL] got 0 JOIN[s] syn tx expected 2
join Tx [FAIL] see above
I had a suspicion about what the issue could be: the ADD_ADDR might have
been received after the switch to the 'fully-established' state. The
issue was not easy to reproduce. The packet capture shown that the
ADD_ADDR can indeed be sent with a delay, and the client would not try
to establish subflows to it as expected.
A simple fix is not to mark the endpoints as 'used' in the C-flag case,
when looking at creating subflows to the remote initial IP address and
port. In this case, there is no need to try.
Note: newly added fullmesh endpoints will still continue to be used as
expected, thanks to the conditions behind mptcp_pm_add_addr_c_flag_case.
Fixes: 4b1ff850e0c1 ("mptcp: pm: in-kernel: usable client side with C-flag")
Cc: stable(a)vger.kernel.org
Reviewed-by: Geliang Tang <geliang(a)kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org>
Link: https://patch.msgid.link/20251020-net-mptcp-c-flag-late-add-addr-v1-1-82070…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c
index e0f44dc232aa..2ae95476dba3 100644
--- a/net/mptcp/pm_kernel.c
+++ b/net/mptcp/pm_kernel.c
@@ -370,6 +370,10 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
}
subflow:
+ /* No need to try establishing subflows to remote id0 if not allowed */
+ if (mptcp_pm_add_addr_c_flag_case(msk))
+ goto exit;
+
/* check if should create a new subflow */
while (msk->pm.local_addr_used < endp_subflow_max &&
msk->pm.extra_subflows < limit_extra_subflows) {
@@ -401,6 +405,8 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
__mptcp_subflow_connect(sk, &local, &addrs[i]);
spin_lock_bh(&msk->pm.lock);
}
+
+exit:
mptcp_pm_nl_check_work_pending(msk);
}
The patch below does not apply to the 6.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x 630785bfbe12c3ee3ebccd8b530a98d632b7e39d
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102645-oblivion-whoopee-576c@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 630785bfbe12c3ee3ebccd8b530a98d632b7e39d Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong(a)kernel.org>
Date: Tue, 21 Oct 2025 11:30:12 -0700
Subject: [PATCH] xfs: always warn about deprecated mount options
The deprecation of the 'attr2' mount option in 6.18 wasn't entirely
successful because nobody noticed that the kernel never printed a
warning about attr2 being set in fstab if the only xfs filesystem is the
root fs; the initramfs mounts the root fs with no mount options; and the
init scripts only conveyed the fstab options by remounting the root fs.
Fix this by making it complain all the time.
Cc: stable(a)vger.kernel.org # v5.13
Fixes: 92cf7d36384b99 ("xfs: Skip repetitive warnings about mount options")
Signed-off-by: Darrick J. Wong <djwong(a)kernel.org>
Reviewed-by: Christoph Hellwig <hch(a)lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino(a)redhat.com>
Signed-off-by: Carlos Maiolino <cem(a)kernel.org>
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 9d51186b24dd..c53f2edf92e7 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1379,16 +1379,25 @@ suffix_kstrtoull(
static inline void
xfs_fs_warn_deprecated(
struct fs_context *fc,
- struct fs_parameter *param,
- uint64_t flag,
- bool value)
+ struct fs_parameter *param)
{
- /* Don't print the warning if reconfiguring and current mount point
- * already had the flag set
+ /*
+ * Always warn about someone passing in a deprecated mount option.
+ * Previously we wouldn't print the warning if we were reconfiguring
+ * and current mount point already had the flag set, but that was not
+ * the right thing to do.
+ *
+ * Many distributions mount the root filesystem with no options in the
+ * initramfs and rely on mount -a to remount the root fs with the
+ * options in fstab. However, the old behavior meant that there would
+ * never be a warning about deprecated mount options for the root fs in
+ * /etc/fstab. On a single-fs system, that means no warning at all.
+ *
+ * Compounding this problem are distribution scripts that copy
+ * /proc/mounts to fstab, which means that we can't remove mount
+ * options unless we're 100% sure they have only ever been advertised
+ * in /proc/mounts in response to explicitly provided mount options.
*/
- if ((fc->purpose & FS_CONTEXT_FOR_RECONFIGURE) &&
- !!(XFS_M(fc->root->d_sb)->m_features & flag) == value)
- return;
xfs_warn(fc->s_fs_info, "%s mount option is deprecated.", param->key);
}
Evaluaciones Psicométricas para RR.HH.
body {
margin: 0;
padding: 0;
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
color: #333;
background-color: #ffffff;
}
table {
border-spacing: 0;
width: 100%;
max-width: 600px;
margin: auto;
}
td {
padding: 12px 20px;
}
a {
color: #1a73e8;
text-decoration: none;
}
.footer {
font-size: 12px;
color: #888888;
text-align: center;
}
Mejora tus procesos de selección con evaluaciones psicométricas fáciles y confiables.
Hola, ,
Sabemos que encontrar al candidato ideal va más allá del currículum. Por eso quiero contarte brevemente sobre PsicoSmart, una plataforma que ayuda a equipos de RR.HH. a evaluar talento con pruebas psicométricas rápidas, confiables y fáciles de aplicar.
Con PsicoSmart puedes:
Aplicar evaluaciones psicométricas 100% en línea.
Elegir entre más de 31 pruebas psicométricas
Generar reportes automáticos, visuales y fáciles de interpretar.
Comparar resultados entre candidatos en segundos.
Ahorrar horas valiosas del proceso de selección.
Si estás buscando mejorar tus contrataciones, te lo recomiendo muchísimo. Si quieres conocer más puedes responder este correo o simplemente contactarme, mis datos están abajo.
Saludos,
-----------------------------
Atte.: Valeria Pérez
Ciudad de México: (55) 5018 0565
WhatsApp: +52 33 1607 2089
Si no deseas recibir más correos, haz clic aquí para darte de baja.
Para remover su dirección de esta lista haga <a href="https://s1.arrobamail.com/unsuscribe.php?id=yiwtsrewisppyseup">click aquí</a>
Mejora el clima organizacional
body {
margin: 0;
padding: 0;
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
color: #333;
background-color: #ffffff;
}
table {
border-spacing: 0;
width: 100%;
max-width: 600px;
margin: auto;
}
td {
padding: 12px 20px;
}
a {
color: #1a73e8;
text-decoration: none;
}
.footer {
font-size: 12px;
color: #888888;
text-align: center;
}
Diagnostica el clima y cultura de tu organización con Vorecol Work Environment.
Hola, ,
El desempeño de un equipo no solo depende del talento individual, también del entorno en el que trabaja. Muchas veces, los problemas de rotación o bajo compromiso tienen raíces invisibles... hasta que se miden.
Por eso quiero presentarte Vorecol Work Environment, una herramienta diseñada para ayudarte a comprender mejor cómo se vive la cultura y el clima dentro de tu organización.
Con Vorecol puedes:
Aplicar evaluaciones periódicas de clima y cultura organizacional, personalizadas a tu contexto.
Obtener resultados organizados por áreas, con alertas sobre temas críticos como liderazgo, carga laboral o reconocimiento.
Acceder a paneles dinámicos que te permiten visualizar tendencias, puntos de mejora y fortalezas de forma clara.
Ideal para organizaciones que quieren escuchar más, reaccionar mejor y construir un entorno donde las personas quieran quedarse.
Si estás buscando mejorar tu ambiente laboral, vale la pena considerarlo. Si quieres conocer más puedes responder este correo o simplemente contactarme, mis datos están abajo.
Saludos,
--------------
Atte.: Daniel Rodríguez
Ciudad de México: (55) 5018 0565
WhatsApp: +52 33 1607 2089
Si no deseas recibir más correos, haz clic aquí para darte de baja.
Para remover su dirección de esta lista haga <a href="https://s1.arrobamail.com/unsuscribe.php?id=yiwtsrewisppuseup">click aquí</a>
The patch below does not apply to the 6.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x e84cb860ac3ce67ec6ecc364433fd5b412c448bc
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102634-cache-seventeen-becb@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From e84cb860ac3ce67ec6ecc364433fd5b412c448bc Mon Sep 17 00:00:00 2001
From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org>
Date: Mon, 20 Oct 2025 22:53:26 +0200
Subject: [PATCH] mptcp: pm: in-kernel: C-flag: handle late ADD_ADDR
The special C-flag case expects the ADD_ADDR to be received when
switching to 'fully-established'. But for various reasons, the ADD_ADDR
could be sent after the "4th ACK", and the special case doesn't work.
On NIPA, the new test validating this special case for the C-flag failed
a few times, e.g.
102 default limits, server deny join id 0
syn rx [FAIL] got 0 JOIN[s] syn rx expected 2
Server ns stats
(...)
MPTcpExtAddAddrTx 1
MPTcpExtEchoAdd 1
Client ns stats
(...)
MPTcpExtAddAddr 1
MPTcpExtEchoAddTx 1
synack rx [FAIL] got 0 JOIN[s] synack rx expected 2
ack rx [FAIL] got 0 JOIN[s] ack rx expected 2
join Rx [FAIL] see above
syn tx [FAIL] got 0 JOIN[s] syn tx expected 2
join Tx [FAIL] see above
I had a suspicion about what the issue could be: the ADD_ADDR might have
been received after the switch to the 'fully-established' state. The
issue was not easy to reproduce. The packet capture shown that the
ADD_ADDR can indeed be sent with a delay, and the client would not try
to establish subflows to it as expected.
A simple fix is not to mark the endpoints as 'used' in the C-flag case,
when looking at creating subflows to the remote initial IP address and
port. In this case, there is no need to try.
Note: newly added fullmesh endpoints will still continue to be used as
expected, thanks to the conditions behind mptcp_pm_add_addr_c_flag_case.
Fixes: 4b1ff850e0c1 ("mptcp: pm: in-kernel: usable client side with C-flag")
Cc: stable(a)vger.kernel.org
Reviewed-by: Geliang Tang <geliang(a)kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org>
Link: https://patch.msgid.link/20251020-net-mptcp-c-flag-late-add-addr-v1-1-82070…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c
index e0f44dc232aa..2ae95476dba3 100644
--- a/net/mptcp/pm_kernel.c
+++ b/net/mptcp/pm_kernel.c
@@ -370,6 +370,10 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
}
subflow:
+ /* No need to try establishing subflows to remote id0 if not allowed */
+ if (mptcp_pm_add_addr_c_flag_case(msk))
+ goto exit;
+
/* check if should create a new subflow */
while (msk->pm.local_addr_used < endp_subflow_max &&
msk->pm.extra_subflows < limit_extra_subflows) {
@@ -401,6 +405,8 @@ static void mptcp_pm_create_subflow_or_signal_addr(struct mptcp_sock *msk)
__mptcp_subflow_connect(sk, &local, &addrs[i]);
spin_lock_bh(&msk->pm.lock);
}
+
+exit:
mptcp_pm_nl_check_work_pending(msk);
}
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 268eb6fb908bc82ce479e4dba9a2cad11f536c9c
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102701-refinish-carrot-c75e@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 268eb6fb908bc82ce479e4dba9a2cad11f536c9c Mon Sep 17 00:00:00 2001
From: Xu Yang <xu.yang_2(a)nxp.com>
Date: Fri, 19 Sep 2025 14:25:34 +0800
Subject: [PATCH] dt-bindings: usb: dwc3-imx8mp: dma-range is required only for
imx8mp
Only i.MX8MP need dma-range property to let USB controller work properly.
Remove dma-range from required list and add limitation for imx8mp.
Fixes: d2a704e29711 ("dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings")
Cc: stable <stable(a)kernel.org>
Reviewed-by: Jun Li <jun.li(a)nxp.com>
Signed-off-by: Xu Yang <xu.yang_2(a)nxp.com>
Reviewed-by: Frank Li <Frank.Li(a)nxp.com>
Acked-by: Conor Dooley <conor.dooley(a)microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
index baf130669c38..73e7a60a0060 100644
--- a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
@@ -89,13 +89,21 @@ required:
- reg
- "#address-cells"
- "#size-cells"
- - dma-ranges
- ranges
- clocks
- clock-names
- interrupts
- power-domains
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: fsl,imx8mp-dwc3
+ then:
+ required:
+ - dma-ranges
+
additionalProperties: false
examples:
The driver_find_device_by_of_node() function returns a device with its
reference count incremented. driver_find_device_by_of_node() is an inline
wrapper that calls driver_find_device(), which calls get_device(dev) and
returns the found device with an incremented reference count.
Fix this by adding the missing put_device() call after the device
operations are completed.
Found via static analysis.
Fixes: 89c788bab1f0 ("ARM: tegra: Add SMMU enabler in AHB")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com>
---
drivers/amba/tegra-ahb.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c
index c0e8b765522d..6c306d017b67 100644
--- a/drivers/amba/tegra-ahb.c
+++ b/drivers/amba/tegra-ahb.c
@@ -147,6 +147,7 @@ int tegra_ahb_enable_smmu(struct device_node *dn)
val = gizmo_readl(ahb, AHB_ARBITRATION_XBAR_CTRL);
val |= AHB_ARBITRATION_XBAR_CTRL_SMMU_INIT_DONE;
gizmo_writel(ahb, val, AHB_ARBITRATION_XBAR_CTRL);
+ put_device(dev);
return 0;
}
EXPORT_SYMBOL(tegra_ahb_enable_smmu);
--
2.39.5 (Apple Git-154)
Since commit 4959aebba8c0 ("virtio-net: use mtu size as buffer length
for big packets"), when guest gso is off, the allocated size for big
packets is not MAX_SKB_FRAGS * PAGE_SIZE anymore but depends on
negotiated MTU. The number of allocated frags for big packets is stored
in vi->big_packets_num_skbfrags.
Because the host announced buffer length can be malicious (e.g. the host
vhost_net driver's get_rx_bufs is modified to announce incorrect
length), we need a check in virtio_net receive path. Currently, the
check is not adapted to the new change which can lead to NULL page
pointer dereference in the below while loop when receiving length that
is larger than the allocated one.
This commit fixes the received length check corresponding to the new
change.
Fixes: 4959aebba8c0 ("virtio-net: use mtu size as buffer length for big packets")
Cc: stable(a)vger.kernel.org
Signed-off-by: Bui Quang Minh <minhquangbui99(a)gmail.com>
---
Changes in v5:
- Move the length check to receive_big
- Link to v4: https://lore.kernel.org/netdev/20251022160623.51191-1-minhquangbui99@gmail.…
Changes in v4:
- Remove unrelated changes, add more comments
- Link to v3: https://lore.kernel.org/netdev/20251021154534.53045-1-minhquangbui99@gmail.…
Changes in v3:
- Convert BUG_ON to WARN_ON_ONCE
- Link to v2: https://lore.kernel.org/netdev/20250708144206.95091-1-minhquangbui99@gmail.…
Changes in v2:
- Remove incorrect give_pages call
- Link to v1: https://lore.kernel.org/netdev/20250706141150.25344-1-minhquangbui99@gmail.…
---
drivers/net/virtio_net.c | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index a757cbcab87f..2c3f544add5e 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -910,17 +910,6 @@ static struct sk_buff *page_to_skb(struct virtnet_info *vi,
goto ok;
}
- /*
- * Verify that we can indeed put this data into a skb.
- * This is here to handle cases when the device erroneously
- * tries to receive more than is possible. This is usually
- * the case of a broken device.
- */
- if (unlikely(len > MAX_SKB_FRAGS * PAGE_SIZE)) {
- net_dbg_ratelimited("%s: too much data\n", skb->dev->name);
- dev_kfree_skb(skb);
- return NULL;
- }
BUG_ON(offset >= PAGE_SIZE);
while (len) {
unsigned int frag_size = min((unsigned)PAGE_SIZE - offset, len);
@@ -2107,9 +2096,19 @@ static struct sk_buff *receive_big(struct net_device *dev,
struct virtnet_rq_stats *stats)
{
struct page *page = buf;
- struct sk_buff *skb =
- page_to_skb(vi, rq, page, 0, len, PAGE_SIZE, 0);
+ struct sk_buff *skb;
+
+ /* Make sure that len does not exceed the allocated size in
+ * add_recvbuf_big.
+ */
+ if (unlikely(len > vi->big_packets_num_skbfrags * PAGE_SIZE)) {
+ pr_debug("%s: rx error: len %u exceeds allocate size %lu\n",
+ dev->name, len,
+ vi->big_packets_num_skbfrags * PAGE_SIZE);
+ goto err;
+ }
+ skb = page_to_skb(vi, rq, page, 0, len, PAGE_SIZE, 0);
u64_stats_add(&stats->bytes, len - vi->hdr_len);
if (unlikely(!skb))
goto err;
--
2.43.0
Check for returned DMA addresses using specialized dma_mapping_error()
helper which is generally recommended for this purpose by
Documentation/core-api/dma-api.rst:
"In some circumstances dma_map_single(), ...
will fail to create a mapping. A driver can check for these errors
by testing the returned DMA address with dma_mapping_error()."
Found via static analysis and this is similar to commit fa0308134d26
("ALSA: memalloc: prefer dma_mapping_error() over explicit address checking")
Fixes: 58ac1b379979 ("ARM: PL011: Fix DMA support")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com>
---
drivers/tty/serial/amba-pl011.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 22939841b1de..7f17d288c807 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -628,7 +628,7 @@ static int pl011_dma_tx_refill(struct uart_amba_port *uap)
dmatx->len = count;
dmatx->dma = dma_map_single(dma_dev->dev, dmatx->buf, count,
DMA_TO_DEVICE);
- if (dmatx->dma == DMA_MAPPING_ERROR) {
+ if (dma_mapping_error(dma_dev->dev, dmatx->dma)) {
uap->dmatx.queued = false;
dev_dbg(uap->port.dev, "unable to map TX DMA\n");
return -EBUSY;
--
2.39.5 (Apple Git-154)
Our implementation for BAR2 (lmembar) resize works at the xe_vram layer
and only releases that BAR before resizing. That is not always
sufficient. If the parent bridge needs to move, the BAR0 also needs to
be released, otherwise the resize fails. This is the case of not having
enough space allocated from the beginning.
Also, there's a BAR0 in the upstream port of the pcie switch in BMG
preventing the resize to propagate to the bridge as previously discussed
in https://lore.kernel.org/intel-xe/20250721173057.867829-1-uwu@icenowy.me/
and https://lore.kernel.org/intel-xe/wqukxnxni2dbpdhri3cbvlrzsefgdanesgskzmxi5s…
I'm bringing that commit from Ilpo here so this can be tested with the
xe changes and propagate to stable. Note that the use of a pci fixup is
not ideal, but without intrusive changes on resource fitting it's
possibly the best alternative. I also have confirmation from HW folks
that the BAR in the upstream port has no production use.
I have more cleanups on top on the xe side, but those conflict with some
refactors Ilpo is working on as prep for the resource fitting, so I will
wait things settle to submit again.
I propose to take this through the drm tree.
With this I could resize the lmembar on some problematic hosts and after
doing an SBR, with one caveat: the audio device also prevents the BAR
from moving and it needs to be manually removed before resizing. With
the PCI refactors and BAR fitting logic that Ilpo is working on, it's
expected that it won't be needed for a long time.
Signed-off-by: Lucas De Marchi <lucas.demarchi(a)intel.com>
---
Ilpo Järvinen (1):
PCI: Release BAR0 of an integrated bridge to allow GPU BAR resize
Lucas De Marchi (1):
drm/xe: Move rebar to be done earlier
drivers/gpu/drm/xe/xe_pci.c | 2 ++
drivers/gpu/drm/xe/xe_vram.c | 34 ++++++++++++++++++++++++++--------
drivers/gpu/drm/xe/xe_vram.h | 1 +
drivers/pci/quirks.c | 23 +++++++++++++++++++++++
4 files changed, 52 insertions(+), 8 deletions(-)
base-commit: 8031d70dbb4201841897de480cec1f9750d4a5dc
change-id: 20250917-xe-pci-rebar-2-c0fe2f04c879
Lucas De Marchi
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 5370c31e84b0e0999c7b5ff949f4e104def35584
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102624-direness-catalyze-d721@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5370c31e84b0e0999c7b5ff949f4e104def35584 Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj(a)bp.renesas.com>
Date: Fri, 17 Oct 2025 16:18:29 +0100
Subject: [PATCH] net: ravb: Enforce descriptor type ordering
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Ensure the TX descriptor type fields are published in a safe order so the
DMA engine never begins processing a descriptor chain before all descriptor
fields are fully initialised.
For multi-descriptor transmits the driver writes DT_FEND into the last
descriptor and DT_FSTART into the first. The DMA engine begins processing
when it observes DT_FSTART. Move the dma_wmb() barrier so it executes
immediately after DT_FEND and immediately before writing DT_FSTART
(and before DT_FSINGLE in the single-descriptor case). This guarantees
that all prior CPU writes to the descriptor memory are visible to the
device before DT_FSTART is seen.
This avoids a situation where compiler/CPU reordering could publish
DT_FSTART ahead of DT_FEND or other descriptor fields, allowing the DMA to
start on a partially initialised chain and causing corrupted transmissions
or TX timeouts. Such a failure was observed on RZ/G2L with an RT kernel as
transmit queue timeouts and device resets.
Fixes: 2f45d1902acf ("ravb: minimize TX data copying")
Cc: stable(a)vger.kernel.org
Co-developed-by: Fabrizio Castro <fabrizio.castro.jz(a)renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz(a)renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj(a)bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas(a)ragnatech.se>
Link: https://patch.msgid.link/20251017151830.171062-4-prabhakar.mahadev-lad.rj@b…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 9d3bd65b85ff..044ee83c63bb 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2211,13 +2211,25 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
skb_tx_timestamp(skb);
}
- /* Descriptor type must be set after all the above writes */
- dma_wmb();
+
if (num_tx_desc > 1) {
desc->die_dt = DT_FEND;
desc--;
+ /* When using multi-descriptors, DT_FEND needs to get written
+ * before DT_FSTART, but the compiler may reorder the memory
+ * writes in an attempt to optimize the code.
+ * Use a dma_wmb() barrier to make sure DT_FEND and DT_FSTART
+ * are written exactly in the order shown in the code.
+ * This is particularly important for cases where the DMA engine
+ * is already running when we are running this code. If the DMA
+ * sees DT_FSTART without the corresponding DT_FEND it will enter
+ * an error condition.
+ */
+ dma_wmb();
desc->die_dt = DT_FSTART;
} else {
+ /* Descriptor type must be set after all the above writes */
+ dma_wmb();
desc->die_dt = DT_FSINGLE;
}
ravb_modify(ndev, TCCR, TCCR_TSRQ0 << q, TCCR_TSRQ0 << q);
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x c3496c052ac36ea98ec4f8e95ae6285a425a2457
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102628-overrun-runny-87fb@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From c3496c052ac36ea98ec4f8e95ae6285a425a2457 Mon Sep 17 00:00:00 2001
From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org>
Date: Mon, 20 Oct 2025 22:53:29 +0200
Subject: [PATCH] selftests: mptcp: join: mark 'delete re-add signal' as
skipped if not supported
The call to 'continue_if' was missing: it properly marks a subtest as
'skipped' if the attached condition is not valid.
Without that, the test is wrongly marked as passed on older kernels.
Fixes: b5e2fb832f48 ("selftests: mptcp: add explicit test case for remove/readd")
Cc: stable(a)vger.kernel.org
Reviewed-by: Geliang Tang <geliang(a)kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org>
Link: https://patch.msgid.link/20251020-net-mptcp-c-flag-late-add-addr-v1-4-82070…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index d98f8f8905b9..b2a8c51a3969 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -4040,7 +4040,7 @@ endpoint_tests()
# remove and re-add
if reset_with_events "delete re-add signal" &&
- mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+ continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=0
pm_nl_set_limits $ns1 0 3
pm_nl_set_limits $ns2 3 3
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 5370c31e84b0e0999c7b5ff949f4e104def35584
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102624-thirsty-otter-d285@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5370c31e84b0e0999c7b5ff949f4e104def35584 Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj(a)bp.renesas.com>
Date: Fri, 17 Oct 2025 16:18:29 +0100
Subject: [PATCH] net: ravb: Enforce descriptor type ordering
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Ensure the TX descriptor type fields are published in a safe order so the
DMA engine never begins processing a descriptor chain before all descriptor
fields are fully initialised.
For multi-descriptor transmits the driver writes DT_FEND into the last
descriptor and DT_FSTART into the first. The DMA engine begins processing
when it observes DT_FSTART. Move the dma_wmb() barrier so it executes
immediately after DT_FEND and immediately before writing DT_FSTART
(and before DT_FSINGLE in the single-descriptor case). This guarantees
that all prior CPU writes to the descriptor memory are visible to the
device before DT_FSTART is seen.
This avoids a situation where compiler/CPU reordering could publish
DT_FSTART ahead of DT_FEND or other descriptor fields, allowing the DMA to
start on a partially initialised chain and causing corrupted transmissions
or TX timeouts. Such a failure was observed on RZ/G2L with an RT kernel as
transmit queue timeouts and device resets.
Fixes: 2f45d1902acf ("ravb: minimize TX data copying")
Cc: stable(a)vger.kernel.org
Co-developed-by: Fabrizio Castro <fabrizio.castro.jz(a)renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz(a)renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj(a)bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas(a)ragnatech.se>
Link: https://patch.msgid.link/20251017151830.171062-4-prabhakar.mahadev-lad.rj@b…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 9d3bd65b85ff..044ee83c63bb 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2211,13 +2211,25 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
skb_tx_timestamp(skb);
}
- /* Descriptor type must be set after all the above writes */
- dma_wmb();
+
if (num_tx_desc > 1) {
desc->die_dt = DT_FEND;
desc--;
+ /* When using multi-descriptors, DT_FEND needs to get written
+ * before DT_FSTART, but the compiler may reorder the memory
+ * writes in an attempt to optimize the code.
+ * Use a dma_wmb() barrier to make sure DT_FEND and DT_FSTART
+ * are written exactly in the order shown in the code.
+ * This is particularly important for cases where the DMA engine
+ * is already running when we are running this code. If the DMA
+ * sees DT_FSTART without the corresponding DT_FEND it will enter
+ * an error condition.
+ */
+ dma_wmb();
desc->die_dt = DT_FSTART;
} else {
+ /* Descriptor type must be set after all the above writes */
+ dma_wmb();
desc->die_dt = DT_FSINGLE;
}
ravb_modify(ndev, TCCR, TCCR_TSRQ0 << q, TCCR_TSRQ0 << q);
The function qcom_slim_ngd_notify_slaves() calls of_slim_get_device() which
internally uses device_find_child() to obtain a device reference.
According to the device_find_child() documentation,
the caller must drop the reference with put_device() after use.
Found via static analysis and this is similar to commit 4e65bda8273c
("ASoC: wcd934x: fix error handling in wcd934x_codec_parse_data()")
Fixes: 917809e2280b ("slimbus: ngd: Add qcom SLIMBus NGD driver")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com>
---
drivers/slimbus/qcom-ngd-ctrl.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index 4fb66986cc22..cd40ab839c54 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1241,6 +1241,7 @@ static void qcom_slim_ngd_notify_slaves(struct qcom_slim_ngd_ctrl *ctrl)
if (slim_get_logical_addr(sbdev))
dev_err(ctrl->dev, "Failed to get logical address\n");
+ put_device(&sbdev->dev);
}
}
--
2.39.5 (Apple Git-154)
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x c3496c052ac36ea98ec4f8e95ae6285a425a2457
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102627-tug-sabbath-3edb@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From c3496c052ac36ea98ec4f8e95ae6285a425a2457 Mon Sep 17 00:00:00 2001
From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org>
Date: Mon, 20 Oct 2025 22:53:29 +0200
Subject: [PATCH] selftests: mptcp: join: mark 'delete re-add signal' as
skipped if not supported
The call to 'continue_if' was missing: it properly marks a subtest as
'skipped' if the attached condition is not valid.
Without that, the test is wrongly marked as passed on older kernels.
Fixes: b5e2fb832f48 ("selftests: mptcp: add explicit test case for remove/readd")
Cc: stable(a)vger.kernel.org
Reviewed-by: Geliang Tang <geliang(a)kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org>
Link: https://patch.msgid.link/20251020-net-mptcp-c-flag-late-add-addr-v1-4-82070…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index d98f8f8905b9..b2a8c51a3969 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -4040,7 +4040,7 @@ endpoint_tests()
# remove and re-add
if reset_with_events "delete re-add signal" &&
- mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+ continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=0
pm_nl_set_limits $ns1 0 3
pm_nl_set_limits $ns2 3 3
The patch below does not apply to the 6.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x c3496c052ac36ea98ec4f8e95ae6285a425a2457
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102627-enclosure-issue-a264@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From c3496c052ac36ea98ec4f8e95ae6285a425a2457 Mon Sep 17 00:00:00 2001
From: "Matthieu Baerts (NGI0)" <matttbe(a)kernel.org>
Date: Mon, 20 Oct 2025 22:53:29 +0200
Subject: [PATCH] selftests: mptcp: join: mark 'delete re-add signal' as
skipped if not supported
The call to 'continue_if' was missing: it properly marks a subtest as
'skipped' if the attached condition is not valid.
Without that, the test is wrongly marked as passed on older kernels.
Fixes: b5e2fb832f48 ("selftests: mptcp: add explicit test case for remove/readd")
Cc: stable(a)vger.kernel.org
Reviewed-by: Geliang Tang <geliang(a)kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org>
Link: https://patch.msgid.link/20251020-net-mptcp-c-flag-late-add-addr-v1-4-82070…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index d98f8f8905b9..b2a8c51a3969 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -4040,7 +4040,7 @@ endpoint_tests()
# remove and re-add
if reset_with_events "delete re-add signal" &&
- mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+ continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=0
pm_nl_set_limits $ns1 0 3
pm_nl_set_limits $ns2 3 3
In the commit referenced by the Fixes tag, devm_clk_get_enabled() was
introduced to replace devm_clk_get() and clk_prepare_enable(). While
the clk_disable_unprepare() call in the error path was correctly
removed, the one in the remove function was overlooked, leading to a
double disable issue.
Remove the redundant clk_disable_unprepare() call from gsbi_remove()
to fix this issue. Since all resources are now managed by devres
and will be automatically released, the remove function serves no purpose
and can be deleted entirely.
Fixes: 489d7a8cc286 ("soc: qcom: use devm_clk_get_enabled() in gsbi_probe()")
Signed-off-by: Haotian Zhang <vulab(a)iscas.ac.cn>
---
drivers/soc/qcom/qcom_gsbi.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/soc/qcom/qcom_gsbi.c b/drivers/soc/qcom/qcom_gsbi.c
index 8f1158e0c631..a25d1de592f0 100644
--- a/drivers/soc/qcom/qcom_gsbi.c
+++ b/drivers/soc/qcom/qcom_gsbi.c
@@ -212,13 +212,6 @@ static int gsbi_probe(struct platform_device *pdev)
return of_platform_populate(node, NULL, NULL, &pdev->dev);
}
-static void gsbi_remove(struct platform_device *pdev)
-{
- struct gsbi_info *gsbi = platform_get_drvdata(pdev);
-
- clk_disable_unprepare(gsbi->hclk);
-}
-
static const struct of_device_id gsbi_dt_match[] = {
{ .compatible = "qcom,gsbi-v1.0.0", },
{ },
@@ -232,7 +225,6 @@ static struct platform_driver gsbi_driver = {
.of_match_table = gsbi_dt_match,
},
.probe = gsbi_probe,
- .remove = gsbi_remove,
};
module_platform_driver(gsbi_driver);
--
2.25.1
Hi all,
This series resolves two new Kconfig warnings that I see in my test
framework from an ARM configuration getting bumped to 6.17 and enabling
these configurations in the process.
---
Nathan Chancellor (2):
clk: qcom: Fix SM_VIDEOCC_6350 dependencies
clk: qcom: Fix dependencies of QCS_{DISP,GPU,VIDEO}CC_615
drivers/clk/qcom/Kconfig | 4 ++++
1 file changed, 4 insertions(+)
---
base-commit: 30bf3ec8cb6b2d2e2f8715388395cbd27cbe4fc9
change-id: 20250930-clk-qcom-kconfig-fixes-arm-3611dec03c3e
Best regards,
--
Nathan Chancellor <nathan(a)kernel.org>
Hello,
New build issue found on stable-rc/linux-5.10.y:
---
implicit declaration of function ‘of_get_cpu_hwid’; did you mean ‘of_get_cpu_node’? [-Werror=implicit-function-declaration] in arch/riscv/kernel/cpu.o (arch/riscv/kernel/cpu.c) [logspec:kbuild,kbuild.compiler.error]
---
- dashboard: https://d.kernelci.org/i/maestro:aa2fc1f4fdbcaf13e029f04263806fde636d74fd
- giturl: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
- commit HEAD: 7288ed51fe2777d083b6cb13bd2d18f368fa425d
Log excerpt:
=====================================================
arch/riscv/kernel/cpu.c:24:33: error: implicit declaration of function ‘of_get_cpu_hwid’; did you mean ‘of_get_cpu_node’? [-Werror=implicit-function-declaration]
24 | *hart = (unsigned long) of_get_cpu_hwid(node, 0);
| ^~~~~~~~~~~~~~~
| of_get_cpu_node
AR init/built-in.a
CC kernel/locking/mutex.o
CC arch/riscv/mm/fault.o
cc1: some warnings being treated as errors
=====================================================
# Builds where the incident occurred:
## defconfig on (riscv):
- compiler: gcc-12
- config: https://files.kernelci.org/kbuild-gcc-12-riscv-68ff66e51198e7d4c92ca056/.co…
- dashboard: https://d.kernelci.org/build/maestro:68ff66e51198e7d4c92ca056
#kernelci issue maestro:aa2fc1f4fdbcaf13e029f04263806fde636d74fd
Reported-by: kernelci.org bot <bot(a)kernelci.org>
--
This is an experimental report format. Please send feedback in!
Talk to us at kernelci(a)lists.linux.dev
Made with love by the KernelCI team - https://kernelci.org
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x a91c8096590bd7801a26454789f2992094fe36da
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102625-cringing-unstuck-790a@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From a91c8096590bd7801a26454789f2992094fe36da Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <dev(a)lankhorst.se>
Date: Wed, 23 Jul 2025 16:24:16 +0200
Subject: [PATCH] devcoredump: Fix circular locking dependency with
devcd->mutex.
The original code causes a circular locking dependency found by lockdep.
======================================================
WARNING: possible circular locking dependency detected
6.16.0-rc6-lgci-xe-xe-pw-151626v3+ #1 Tainted: G S U
------------------------------------------------------
xe_fault_inject/5091 is trying to acquire lock:
ffff888156815688 ((work_completion)(&(&devcd->del_wk)->work)){+.+.}-{0:0}, at: __flush_work+0x25d/0x660
but task is already holding lock:
ffff888156815620 (&devcd->mutex){+.+.}-{3:3}, at: dev_coredump_put+0x3f/0xa0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&devcd->mutex){+.+.}-{3:3}:
mutex_lock_nested+0x4e/0xc0
devcd_data_write+0x27/0x90
sysfs_kf_bin_write+0x80/0xf0
kernfs_fop_write_iter+0x169/0x220
vfs_write+0x293/0x560
ksys_write+0x72/0xf0
__x64_sys_write+0x19/0x30
x64_sys_call+0x2bf/0x2660
do_syscall_64+0x93/0xb60
entry_SYSCALL_64_after_hwframe+0x76/0x7e
-> #1 (kn->active#236){++++}-{0:0}:
kernfs_drain+0x1e2/0x200
__kernfs_remove+0xae/0x400
kernfs_remove_by_name_ns+0x5d/0xc0
remove_files+0x54/0x70
sysfs_remove_group+0x3d/0xa0
sysfs_remove_groups+0x2e/0x60
device_remove_attrs+0xc7/0x100
device_del+0x15d/0x3b0
devcd_del+0x19/0x30
process_one_work+0x22b/0x6f0
worker_thread+0x1e8/0x3d0
kthread+0x11c/0x250
ret_from_fork+0x26c/0x2e0
ret_from_fork_asm+0x1a/0x30
-> #0 ((work_completion)(&(&devcd->del_wk)->work)){+.+.}-{0:0}:
__lock_acquire+0x1661/0x2860
lock_acquire+0xc4/0x2f0
__flush_work+0x27a/0x660
flush_delayed_work+0x5d/0xa0
dev_coredump_put+0x63/0xa0
xe_driver_devcoredump_fini+0x12/0x20 [xe]
devm_action_release+0x12/0x30
release_nodes+0x3a/0x120
devres_release_all+0x8a/0xd0
device_unbind_cleanup+0x12/0x80
device_release_driver_internal+0x23a/0x280
device_driver_detach+0x14/0x20
unbind_store+0xaf/0xc0
drv_attr_store+0x21/0x50
sysfs_kf_write+0x4a/0x80
kernfs_fop_write_iter+0x169/0x220
vfs_write+0x293/0x560
ksys_write+0x72/0xf0
__x64_sys_write+0x19/0x30
x64_sys_call+0x2bf/0x2660
do_syscall_64+0x93/0xb60
entry_SYSCALL_64_after_hwframe+0x76/0x7e
other info that might help us debug this:
Chain exists of: (work_completion)(&(&devcd->del_wk)->work) --> kn->active#236 --> &devcd->mutex
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&devcd->mutex);
lock(kn->active#236);
lock(&devcd->mutex);
lock((work_completion)(&(&devcd->del_wk)->work));
*** DEADLOCK ***
5 locks held by xe_fault_inject/5091:
#0: ffff8881129f9488 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x72/0xf0
#1: ffff88810c755078 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x123/0x220
#2: ffff8881054811a0 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x55/0x280
#3: ffff888156815620 (&devcd->mutex){+.+.}-{3:3}, at: dev_coredump_put+0x3f/0xa0
#4: ffffffff8359e020 (rcu_read_lock){....}-{1:2}, at: __flush_work+0x72/0x660
stack backtrace:
CPU: 14 UID: 0 PID: 5091 Comm: xe_fault_inject Tainted: G S U 6.16.0-rc6-lgci-xe-xe-pw-151626v3+ #1 PREEMPT_{RT,(lazy)}
Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER
Hardware name: Micro-Star International Co., Ltd. MS-7D25/PRO Z690-A DDR4(MS-7D25), BIOS 1.10 12/13/2021
Call Trace:
<TASK>
dump_stack_lvl+0x91/0xf0
dump_stack+0x10/0x20
print_circular_bug+0x285/0x360
check_noncircular+0x135/0x150
? register_lock_class+0x48/0x4a0
__lock_acquire+0x1661/0x2860
lock_acquire+0xc4/0x2f0
? __flush_work+0x25d/0x660
? mark_held_locks+0x46/0x90
? __flush_work+0x25d/0x660
__flush_work+0x27a/0x660
? __flush_work+0x25d/0x660
? trace_hardirqs_on+0x1e/0xd0
? __pfx_wq_barrier_func+0x10/0x10
flush_delayed_work+0x5d/0xa0
dev_coredump_put+0x63/0xa0
xe_driver_devcoredump_fini+0x12/0x20 [xe]
devm_action_release+0x12/0x30
release_nodes+0x3a/0x120
devres_release_all+0x8a/0xd0
device_unbind_cleanup+0x12/0x80
device_release_driver_internal+0x23a/0x280
? bus_find_device+0xa8/0xe0
device_driver_detach+0x14/0x20
unbind_store+0xaf/0xc0
drv_attr_store+0x21/0x50
sysfs_kf_write+0x4a/0x80
kernfs_fop_write_iter+0x169/0x220
vfs_write+0x293/0x560
ksys_write+0x72/0xf0
__x64_sys_write+0x19/0x30
x64_sys_call+0x2bf/0x2660
do_syscall_64+0x93/0xb60
? __f_unlock_pos+0x15/0x20
? __x64_sys_getdents64+0x9b/0x130
? __pfx_filldir64+0x10/0x10
? do_syscall_64+0x1a2/0xb60
? clear_bhb_loop+0x30/0x80
? clear_bhb_loop+0x30/0x80
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x76e292edd574
Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d d5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89
RSP: 002b:00007fffe247a828 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000076e292edd574
RDX: 000000000000000c RSI: 00006267f6306063 RDI: 000000000000000b
RBP: 000000000000000c R08: 000076e292fc4b20 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00006267f6306063
R13: 000000000000000b R14: 00006267e6859c00 R15: 000076e29322a000
</TASK>
xe 0000:03:00.0: [drm] Xe device coredump has been deleted.
Fixes: 01daccf74832 ("devcoredump : Serialize devcd_del work")
Cc: Mukesh Ojha <quic_mojha(a)quicinc.com>
Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
Cc: Johannes Berg <johannes(a)sipsolutions.net>
Cc: Rafael J. Wysocki <rafael(a)kernel.org>
Cc: Danilo Krummrich <dakr(a)kernel.org>
Cc: linux-kernel(a)vger.kernel.org
Cc: stable(a)vger.kernel.org # v6.1+
Signed-off-by: Maarten Lankhorst <dev(a)lankhorst.se>
Cc: Matthew Brost <matthew.brost(a)intel.com>
Acked-by: Mukesh Ojha <mukesh.ojha(a)oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250723142416.1020423-1-dev@lankhorst.se
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/base/devcoredump.c b/drivers/base/devcoredump.c
index 37faf6156d7c..55bdc7f5e59d 100644
--- a/drivers/base/devcoredump.c
+++ b/drivers/base/devcoredump.c
@@ -23,50 +23,46 @@ struct devcd_entry {
void *data;
size_t datalen;
/*
- * Here, mutex is required to serialize the calls to del_wk work between
- * user/kernel space which happens when devcd is added with device_add()
- * and that sends uevent to user space. User space reads the uevents,
- * and calls to devcd_data_write() which try to modify the work which is
- * not even initialized/queued from devcoredump.
+ * There are 2 races for which mutex is required.
*
+ * The first race is between device creation and userspace writing to
+ * schedule immediately destruction.
*
+ * This race is handled by arming the timer before device creation, but
+ * when device creation fails the timer still exists.
*
- * cpu0(X) cpu1(Y)
+ * To solve this, hold the mutex during device_add(), and set
+ * init_completed on success before releasing the mutex.
*
- * dev_coredump() uevent sent to user space
- * device_add() ======================> user space process Y reads the
- * uevents writes to devcd fd
- * which results into writes to
+ * That way the timer will never fire until device_add() is called,
+ * it will do nothing if init_completed is not set. The timer is also
+ * cancelled in that case.
*
- * devcd_data_write()
- * mod_delayed_work()
- * try_to_grab_pending()
- * timer_delete()
- * debug_assert_init()
- * INIT_DELAYED_WORK()
- * schedule_delayed_work()
- *
- *
- * Also, mutex alone would not be enough to avoid scheduling of
- * del_wk work after it get flush from a call to devcd_free()
- * mentioned as below.
- *
- * disabled_store()
- * devcd_free()
- * mutex_lock() devcd_data_write()
- * flush_delayed_work()
- * mutex_unlock()
- * mutex_lock()
- * mod_delayed_work()
- * mutex_unlock()
- * So, delete_work flag is required.
+ * The second race involves multiple parallel invocations of devcd_free(),
+ * add a deleted flag so only 1 can call the destructor.
*/
struct mutex mutex;
- bool delete_work;
+ bool init_completed, deleted;
struct module *owner;
ssize_t (*read)(char *buffer, loff_t offset, size_t count,
void *data, size_t datalen);
void (*free)(void *data);
+ /*
+ * If nothing interferes and device_add() was returns success,
+ * del_wk will destroy the device after the timer fires.
+ *
+ * Multiple userspace processes can interfere in the working of the timer:
+ * - Writing to the coredump will reschedule the timer to run immediately,
+ * if still armed.
+ *
+ * This is handled by using "if (cancel_delayed_work()) {
+ * schedule_delayed_work() }", to prevent re-arming after having
+ * been previously fired.
+ * - Writing to /sys/class/devcoredump/disabled will destroy the
+ * coredump synchronously.
+ * This is handled by using disable_delayed_work_sync(), and then
+ * checking if deleted flag is set with &devcd->mutex held.
+ */
struct delayed_work del_wk;
struct device *failing_dev;
};
@@ -95,14 +91,27 @@ static void devcd_dev_release(struct device *dev)
kfree(devcd);
}
+static void __devcd_del(struct devcd_entry *devcd)
+{
+ devcd->deleted = true;
+ device_del(&devcd->devcd_dev);
+ put_device(&devcd->devcd_dev);
+}
+
static void devcd_del(struct work_struct *wk)
{
struct devcd_entry *devcd;
+ bool init_completed;
devcd = container_of(wk, struct devcd_entry, del_wk.work);
- device_del(&devcd->devcd_dev);
- put_device(&devcd->devcd_dev);
+ /* devcd->mutex serializes against dev_coredumpm_timeout */
+ mutex_lock(&devcd->mutex);
+ init_completed = devcd->init_completed;
+ mutex_unlock(&devcd->mutex);
+
+ if (init_completed)
+ __devcd_del(devcd);
}
static ssize_t devcd_data_read(struct file *filp, struct kobject *kobj,
@@ -122,12 +131,12 @@ static ssize_t devcd_data_write(struct file *filp, struct kobject *kobj,
struct device *dev = kobj_to_dev(kobj);
struct devcd_entry *devcd = dev_to_devcd(dev);
- mutex_lock(&devcd->mutex);
- if (!devcd->delete_work) {
- devcd->delete_work = true;
- mod_delayed_work(system_wq, &devcd->del_wk, 0);
- }
- mutex_unlock(&devcd->mutex);
+ /*
+ * Although it's tempting to use mod_delayed work here,
+ * that will cause a reschedule if the timer already fired.
+ */
+ if (cancel_delayed_work(&devcd->del_wk))
+ schedule_delayed_work(&devcd->del_wk, 0);
return count;
}
@@ -151,11 +160,21 @@ static int devcd_free(struct device *dev, void *data)
{
struct devcd_entry *devcd = dev_to_devcd(dev);
+ /*
+ * To prevent a race with devcd_data_write(), disable work and
+ * complete manually instead.
+ *
+ * We cannot rely on the return value of
+ * disable_delayed_work_sync() here, because it might be in the
+ * middle of a cancel_delayed_work + schedule_delayed_work pair.
+ *
+ * devcd->mutex here guards against multiple parallel invocations
+ * of devcd_free().
+ */
+ disable_delayed_work_sync(&devcd->del_wk);
mutex_lock(&devcd->mutex);
- if (!devcd->delete_work)
- devcd->delete_work = true;
-
- flush_delayed_work(&devcd->del_wk);
+ if (!devcd->deleted)
+ __devcd_del(devcd);
mutex_unlock(&devcd->mutex);
return 0;
}
@@ -179,12 +198,10 @@ static ssize_t disabled_show(const struct class *class, const struct class_attri
* put_device() <- last reference
* error = fn(dev, data) devcd_dev_release()
* devcd_free(dev, data) kfree(devcd)
- * mutex_lock(&devcd->mutex);
*
*
* In the above diagram, it looks like disabled_store() would be racing with parallelly
- * running devcd_del() and result in memory abort while acquiring devcd->mutex which
- * is called after kfree of devcd memory after dropping its last reference with
+ * running devcd_del() and result in memory abort after dropping its last reference with
* put_device(). However, this will not happens as fn(dev, data) runs
* with its own reference to device via klist_node so it is not its last reference.
* so, above situation would not occur.
@@ -374,7 +391,7 @@ void dev_coredumpm_timeout(struct device *dev, struct module *owner,
devcd->read = read;
devcd->free = free;
devcd->failing_dev = get_device(dev);
- devcd->delete_work = false;
+ devcd->deleted = false;
mutex_init(&devcd->mutex);
device_initialize(&devcd->devcd_dev);
@@ -383,8 +400,14 @@ void dev_coredumpm_timeout(struct device *dev, struct module *owner,
atomic_inc_return(&devcd_count));
devcd->devcd_dev.class = &devcd_class;
- mutex_lock(&devcd->mutex);
dev_set_uevent_suppress(&devcd->devcd_dev, true);
+
+ /* devcd->mutex prevents devcd_del() completing until init finishes */
+ mutex_lock(&devcd->mutex);
+ devcd->init_completed = false;
+ INIT_DELAYED_WORK(&devcd->del_wk, devcd_del);
+ schedule_delayed_work(&devcd->del_wk, timeout);
+
if (device_add(&devcd->devcd_dev))
goto put_device;
@@ -401,13 +424,20 @@ void dev_coredumpm_timeout(struct device *dev, struct module *owner,
dev_set_uevent_suppress(&devcd->devcd_dev, false);
kobject_uevent(&devcd->devcd_dev.kobj, KOBJ_ADD);
- INIT_DELAYED_WORK(&devcd->del_wk, devcd_del);
- schedule_delayed_work(&devcd->del_wk, timeout);
+
+ /*
+ * Safe to run devcd_del() now that we are done with devcd_dev.
+ * Alternatively we could have taken a ref on devcd_dev before
+ * dropping the lock.
+ */
+ devcd->init_completed = true;
mutex_unlock(&devcd->mutex);
return;
put_device:
- put_device(&devcd->devcd_dev);
mutex_unlock(&devcd->mutex);
+ cancel_delayed_work_sync(&devcd->del_wk);
+ put_device(&devcd->devcd_dev);
+
put_module:
module_put(owner);
free:
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 630785bfbe12c3ee3ebccd8b530a98d632b7e39d
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102617-untrimmed-ideally-b80b@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 630785bfbe12c3ee3ebccd8b530a98d632b7e39d Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong(a)kernel.org>
Date: Tue, 21 Oct 2025 11:30:12 -0700
Subject: [PATCH] xfs: always warn about deprecated mount options
The deprecation of the 'attr2' mount option in 6.18 wasn't entirely
successful because nobody noticed that the kernel never printed a
warning about attr2 being set in fstab if the only xfs filesystem is the
root fs; the initramfs mounts the root fs with no mount options; and the
init scripts only conveyed the fstab options by remounting the root fs.
Fix this by making it complain all the time.
Cc: stable(a)vger.kernel.org # v5.13
Fixes: 92cf7d36384b99 ("xfs: Skip repetitive warnings about mount options")
Signed-off-by: Darrick J. Wong <djwong(a)kernel.org>
Reviewed-by: Christoph Hellwig <hch(a)lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino(a)redhat.com>
Signed-off-by: Carlos Maiolino <cem(a)kernel.org>
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 9d51186b24dd..c53f2edf92e7 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1379,16 +1379,25 @@ suffix_kstrtoull(
static inline void
xfs_fs_warn_deprecated(
struct fs_context *fc,
- struct fs_parameter *param,
- uint64_t flag,
- bool value)
+ struct fs_parameter *param)
{
- /* Don't print the warning if reconfiguring and current mount point
- * already had the flag set
+ /*
+ * Always warn about someone passing in a deprecated mount option.
+ * Previously we wouldn't print the warning if we were reconfiguring
+ * and current mount point already had the flag set, but that was not
+ * the right thing to do.
+ *
+ * Many distributions mount the root filesystem with no options in the
+ * initramfs and rely on mount -a to remount the root fs with the
+ * options in fstab. However, the old behavior meant that there would
+ * never be a warning about deprecated mount options for the root fs in
+ * /etc/fstab. On a single-fs system, that means no warning at all.
+ *
+ * Compounding this problem are distribution scripts that copy
+ * /proc/mounts to fstab, which means that we can't remove mount
+ * options unless we're 100% sure they have only ever been advertised
+ * in /proc/mounts in response to explicitly provided mount options.
*/
- if ((fc->purpose & FS_CONTEXT_FOR_RECONFIGURE) &&
- !!(XFS_M(fc->root->d_sb)->m_features & flag) == value)
- return;
xfs_warn(fc->s_fs_info, "%s mount option is deprecated.", param->key);
}
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 5370c31e84b0e0999c7b5ff949f4e104def35584
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102623-footless-outcast-b793@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5370c31e84b0e0999c7b5ff949f4e104def35584 Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj(a)bp.renesas.com>
Date: Fri, 17 Oct 2025 16:18:29 +0100
Subject: [PATCH] net: ravb: Enforce descriptor type ordering
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Ensure the TX descriptor type fields are published in a safe order so the
DMA engine never begins processing a descriptor chain before all descriptor
fields are fully initialised.
For multi-descriptor transmits the driver writes DT_FEND into the last
descriptor and DT_FSTART into the first. The DMA engine begins processing
when it observes DT_FSTART. Move the dma_wmb() barrier so it executes
immediately after DT_FEND and immediately before writing DT_FSTART
(and before DT_FSINGLE in the single-descriptor case). This guarantees
that all prior CPU writes to the descriptor memory are visible to the
device before DT_FSTART is seen.
This avoids a situation where compiler/CPU reordering could publish
DT_FSTART ahead of DT_FEND or other descriptor fields, allowing the DMA to
start on a partially initialised chain and causing corrupted transmissions
or TX timeouts. Such a failure was observed on RZ/G2L with an RT kernel as
transmit queue timeouts and device resets.
Fixes: 2f45d1902acf ("ravb: minimize TX data copying")
Cc: stable(a)vger.kernel.org
Co-developed-by: Fabrizio Castro <fabrizio.castro.jz(a)renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz(a)renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj(a)bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas(a)ragnatech.se>
Link: https://patch.msgid.link/20251017151830.171062-4-prabhakar.mahadev-lad.rj@b…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 9d3bd65b85ff..044ee83c63bb 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2211,13 +2211,25 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
skb_tx_timestamp(skb);
}
- /* Descriptor type must be set after all the above writes */
- dma_wmb();
+
if (num_tx_desc > 1) {
desc->die_dt = DT_FEND;
desc--;
+ /* When using multi-descriptors, DT_FEND needs to get written
+ * before DT_FSTART, but the compiler may reorder the memory
+ * writes in an attempt to optimize the code.
+ * Use a dma_wmb() barrier to make sure DT_FEND and DT_FSTART
+ * are written exactly in the order shown in the code.
+ * This is particularly important for cases where the DMA engine
+ * is already running when we are running this code. If the DMA
+ * sees DT_FSTART without the corresponding DT_FEND it will enter
+ * an error condition.
+ */
+ dma_wmb();
desc->die_dt = DT_FSTART;
} else {
+ /* Descriptor type must be set after all the above writes */
+ dma_wmb();
desc->die_dt = DT_FSINGLE;
}
ravb_modify(ndev, TCCR, TCCR_TSRQ0 << q, TCCR_TSRQ0 << q);
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x a91c8096590bd7801a26454789f2992094fe36da
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102624-aspect-stumble-aea9@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From a91c8096590bd7801a26454789f2992094fe36da Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <dev(a)lankhorst.se>
Date: Wed, 23 Jul 2025 16:24:16 +0200
Subject: [PATCH] devcoredump: Fix circular locking dependency with
devcd->mutex.
The original code causes a circular locking dependency found by lockdep.
======================================================
WARNING: possible circular locking dependency detected
6.16.0-rc6-lgci-xe-xe-pw-151626v3+ #1 Tainted: G S U
------------------------------------------------------
xe_fault_inject/5091 is trying to acquire lock:
ffff888156815688 ((work_completion)(&(&devcd->del_wk)->work)){+.+.}-{0:0}, at: __flush_work+0x25d/0x660
but task is already holding lock:
ffff888156815620 (&devcd->mutex){+.+.}-{3:3}, at: dev_coredump_put+0x3f/0xa0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&devcd->mutex){+.+.}-{3:3}:
mutex_lock_nested+0x4e/0xc0
devcd_data_write+0x27/0x90
sysfs_kf_bin_write+0x80/0xf0
kernfs_fop_write_iter+0x169/0x220
vfs_write+0x293/0x560
ksys_write+0x72/0xf0
__x64_sys_write+0x19/0x30
x64_sys_call+0x2bf/0x2660
do_syscall_64+0x93/0xb60
entry_SYSCALL_64_after_hwframe+0x76/0x7e
-> #1 (kn->active#236){++++}-{0:0}:
kernfs_drain+0x1e2/0x200
__kernfs_remove+0xae/0x400
kernfs_remove_by_name_ns+0x5d/0xc0
remove_files+0x54/0x70
sysfs_remove_group+0x3d/0xa0
sysfs_remove_groups+0x2e/0x60
device_remove_attrs+0xc7/0x100
device_del+0x15d/0x3b0
devcd_del+0x19/0x30
process_one_work+0x22b/0x6f0
worker_thread+0x1e8/0x3d0
kthread+0x11c/0x250
ret_from_fork+0x26c/0x2e0
ret_from_fork_asm+0x1a/0x30
-> #0 ((work_completion)(&(&devcd->del_wk)->work)){+.+.}-{0:0}:
__lock_acquire+0x1661/0x2860
lock_acquire+0xc4/0x2f0
__flush_work+0x27a/0x660
flush_delayed_work+0x5d/0xa0
dev_coredump_put+0x63/0xa0
xe_driver_devcoredump_fini+0x12/0x20 [xe]
devm_action_release+0x12/0x30
release_nodes+0x3a/0x120
devres_release_all+0x8a/0xd0
device_unbind_cleanup+0x12/0x80
device_release_driver_internal+0x23a/0x280
device_driver_detach+0x14/0x20
unbind_store+0xaf/0xc0
drv_attr_store+0x21/0x50
sysfs_kf_write+0x4a/0x80
kernfs_fop_write_iter+0x169/0x220
vfs_write+0x293/0x560
ksys_write+0x72/0xf0
__x64_sys_write+0x19/0x30
x64_sys_call+0x2bf/0x2660
do_syscall_64+0x93/0xb60
entry_SYSCALL_64_after_hwframe+0x76/0x7e
other info that might help us debug this:
Chain exists of: (work_completion)(&(&devcd->del_wk)->work) --> kn->active#236 --> &devcd->mutex
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&devcd->mutex);
lock(kn->active#236);
lock(&devcd->mutex);
lock((work_completion)(&(&devcd->del_wk)->work));
*** DEADLOCK ***
5 locks held by xe_fault_inject/5091:
#0: ffff8881129f9488 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x72/0xf0
#1: ffff88810c755078 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x123/0x220
#2: ffff8881054811a0 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x55/0x280
#3: ffff888156815620 (&devcd->mutex){+.+.}-{3:3}, at: dev_coredump_put+0x3f/0xa0
#4: ffffffff8359e020 (rcu_read_lock){....}-{1:2}, at: __flush_work+0x72/0x660
stack backtrace:
CPU: 14 UID: 0 PID: 5091 Comm: xe_fault_inject Tainted: G S U 6.16.0-rc6-lgci-xe-xe-pw-151626v3+ #1 PREEMPT_{RT,(lazy)}
Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER
Hardware name: Micro-Star International Co., Ltd. MS-7D25/PRO Z690-A DDR4(MS-7D25), BIOS 1.10 12/13/2021
Call Trace:
<TASK>
dump_stack_lvl+0x91/0xf0
dump_stack+0x10/0x20
print_circular_bug+0x285/0x360
check_noncircular+0x135/0x150
? register_lock_class+0x48/0x4a0
__lock_acquire+0x1661/0x2860
lock_acquire+0xc4/0x2f0
? __flush_work+0x25d/0x660
? mark_held_locks+0x46/0x90
? __flush_work+0x25d/0x660
__flush_work+0x27a/0x660
? __flush_work+0x25d/0x660
? trace_hardirqs_on+0x1e/0xd0
? __pfx_wq_barrier_func+0x10/0x10
flush_delayed_work+0x5d/0xa0
dev_coredump_put+0x63/0xa0
xe_driver_devcoredump_fini+0x12/0x20 [xe]
devm_action_release+0x12/0x30
release_nodes+0x3a/0x120
devres_release_all+0x8a/0xd0
device_unbind_cleanup+0x12/0x80
device_release_driver_internal+0x23a/0x280
? bus_find_device+0xa8/0xe0
device_driver_detach+0x14/0x20
unbind_store+0xaf/0xc0
drv_attr_store+0x21/0x50
sysfs_kf_write+0x4a/0x80
kernfs_fop_write_iter+0x169/0x220
vfs_write+0x293/0x560
ksys_write+0x72/0xf0
__x64_sys_write+0x19/0x30
x64_sys_call+0x2bf/0x2660
do_syscall_64+0x93/0xb60
? __f_unlock_pos+0x15/0x20
? __x64_sys_getdents64+0x9b/0x130
? __pfx_filldir64+0x10/0x10
? do_syscall_64+0x1a2/0xb60
? clear_bhb_loop+0x30/0x80
? clear_bhb_loop+0x30/0x80
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x76e292edd574
Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d d5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89
RSP: 002b:00007fffe247a828 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000076e292edd574
RDX: 000000000000000c RSI: 00006267f6306063 RDI: 000000000000000b
RBP: 000000000000000c R08: 000076e292fc4b20 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00006267f6306063
R13: 000000000000000b R14: 00006267e6859c00 R15: 000076e29322a000
</TASK>
xe 0000:03:00.0: [drm] Xe device coredump has been deleted.
Fixes: 01daccf74832 ("devcoredump : Serialize devcd_del work")
Cc: Mukesh Ojha <quic_mojha(a)quicinc.com>
Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
Cc: Johannes Berg <johannes(a)sipsolutions.net>
Cc: Rafael J. Wysocki <rafael(a)kernel.org>
Cc: Danilo Krummrich <dakr(a)kernel.org>
Cc: linux-kernel(a)vger.kernel.org
Cc: stable(a)vger.kernel.org # v6.1+
Signed-off-by: Maarten Lankhorst <dev(a)lankhorst.se>
Cc: Matthew Brost <matthew.brost(a)intel.com>
Acked-by: Mukesh Ojha <mukesh.ojha(a)oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250723142416.1020423-1-dev@lankhorst.se
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/base/devcoredump.c b/drivers/base/devcoredump.c
index 37faf6156d7c..55bdc7f5e59d 100644
--- a/drivers/base/devcoredump.c
+++ b/drivers/base/devcoredump.c
@@ -23,50 +23,46 @@ struct devcd_entry {
void *data;
size_t datalen;
/*
- * Here, mutex is required to serialize the calls to del_wk work between
- * user/kernel space which happens when devcd is added with device_add()
- * and that sends uevent to user space. User space reads the uevents,
- * and calls to devcd_data_write() which try to modify the work which is
- * not even initialized/queued from devcoredump.
+ * There are 2 races for which mutex is required.
*
+ * The first race is between device creation and userspace writing to
+ * schedule immediately destruction.
*
+ * This race is handled by arming the timer before device creation, but
+ * when device creation fails the timer still exists.
*
- * cpu0(X) cpu1(Y)
+ * To solve this, hold the mutex during device_add(), and set
+ * init_completed on success before releasing the mutex.
*
- * dev_coredump() uevent sent to user space
- * device_add() ======================> user space process Y reads the
- * uevents writes to devcd fd
- * which results into writes to
+ * That way the timer will never fire until device_add() is called,
+ * it will do nothing if init_completed is not set. The timer is also
+ * cancelled in that case.
*
- * devcd_data_write()
- * mod_delayed_work()
- * try_to_grab_pending()
- * timer_delete()
- * debug_assert_init()
- * INIT_DELAYED_WORK()
- * schedule_delayed_work()
- *
- *
- * Also, mutex alone would not be enough to avoid scheduling of
- * del_wk work after it get flush from a call to devcd_free()
- * mentioned as below.
- *
- * disabled_store()
- * devcd_free()
- * mutex_lock() devcd_data_write()
- * flush_delayed_work()
- * mutex_unlock()
- * mutex_lock()
- * mod_delayed_work()
- * mutex_unlock()
- * So, delete_work flag is required.
+ * The second race involves multiple parallel invocations of devcd_free(),
+ * add a deleted flag so only 1 can call the destructor.
*/
struct mutex mutex;
- bool delete_work;
+ bool init_completed, deleted;
struct module *owner;
ssize_t (*read)(char *buffer, loff_t offset, size_t count,
void *data, size_t datalen);
void (*free)(void *data);
+ /*
+ * If nothing interferes and device_add() was returns success,
+ * del_wk will destroy the device after the timer fires.
+ *
+ * Multiple userspace processes can interfere in the working of the timer:
+ * - Writing to the coredump will reschedule the timer to run immediately,
+ * if still armed.
+ *
+ * This is handled by using "if (cancel_delayed_work()) {
+ * schedule_delayed_work() }", to prevent re-arming after having
+ * been previously fired.
+ * - Writing to /sys/class/devcoredump/disabled will destroy the
+ * coredump synchronously.
+ * This is handled by using disable_delayed_work_sync(), and then
+ * checking if deleted flag is set with &devcd->mutex held.
+ */
struct delayed_work del_wk;
struct device *failing_dev;
};
@@ -95,14 +91,27 @@ static void devcd_dev_release(struct device *dev)
kfree(devcd);
}
+static void __devcd_del(struct devcd_entry *devcd)
+{
+ devcd->deleted = true;
+ device_del(&devcd->devcd_dev);
+ put_device(&devcd->devcd_dev);
+}
+
static void devcd_del(struct work_struct *wk)
{
struct devcd_entry *devcd;
+ bool init_completed;
devcd = container_of(wk, struct devcd_entry, del_wk.work);
- device_del(&devcd->devcd_dev);
- put_device(&devcd->devcd_dev);
+ /* devcd->mutex serializes against dev_coredumpm_timeout */
+ mutex_lock(&devcd->mutex);
+ init_completed = devcd->init_completed;
+ mutex_unlock(&devcd->mutex);
+
+ if (init_completed)
+ __devcd_del(devcd);
}
static ssize_t devcd_data_read(struct file *filp, struct kobject *kobj,
@@ -122,12 +131,12 @@ static ssize_t devcd_data_write(struct file *filp, struct kobject *kobj,
struct device *dev = kobj_to_dev(kobj);
struct devcd_entry *devcd = dev_to_devcd(dev);
- mutex_lock(&devcd->mutex);
- if (!devcd->delete_work) {
- devcd->delete_work = true;
- mod_delayed_work(system_wq, &devcd->del_wk, 0);
- }
- mutex_unlock(&devcd->mutex);
+ /*
+ * Although it's tempting to use mod_delayed work here,
+ * that will cause a reschedule if the timer already fired.
+ */
+ if (cancel_delayed_work(&devcd->del_wk))
+ schedule_delayed_work(&devcd->del_wk, 0);
return count;
}
@@ -151,11 +160,21 @@ static int devcd_free(struct device *dev, void *data)
{
struct devcd_entry *devcd = dev_to_devcd(dev);
+ /*
+ * To prevent a race with devcd_data_write(), disable work and
+ * complete manually instead.
+ *
+ * We cannot rely on the return value of
+ * disable_delayed_work_sync() here, because it might be in the
+ * middle of a cancel_delayed_work + schedule_delayed_work pair.
+ *
+ * devcd->mutex here guards against multiple parallel invocations
+ * of devcd_free().
+ */
+ disable_delayed_work_sync(&devcd->del_wk);
mutex_lock(&devcd->mutex);
- if (!devcd->delete_work)
- devcd->delete_work = true;
-
- flush_delayed_work(&devcd->del_wk);
+ if (!devcd->deleted)
+ __devcd_del(devcd);
mutex_unlock(&devcd->mutex);
return 0;
}
@@ -179,12 +198,10 @@ static ssize_t disabled_show(const struct class *class, const struct class_attri
* put_device() <- last reference
* error = fn(dev, data) devcd_dev_release()
* devcd_free(dev, data) kfree(devcd)
- * mutex_lock(&devcd->mutex);
*
*
* In the above diagram, it looks like disabled_store() would be racing with parallelly
- * running devcd_del() and result in memory abort while acquiring devcd->mutex which
- * is called after kfree of devcd memory after dropping its last reference with
+ * running devcd_del() and result in memory abort after dropping its last reference with
* put_device(). However, this will not happens as fn(dev, data) runs
* with its own reference to device via klist_node so it is not its last reference.
* so, above situation would not occur.
@@ -374,7 +391,7 @@ void dev_coredumpm_timeout(struct device *dev, struct module *owner,
devcd->read = read;
devcd->free = free;
devcd->failing_dev = get_device(dev);
- devcd->delete_work = false;
+ devcd->deleted = false;
mutex_init(&devcd->mutex);
device_initialize(&devcd->devcd_dev);
@@ -383,8 +400,14 @@ void dev_coredumpm_timeout(struct device *dev, struct module *owner,
atomic_inc_return(&devcd_count));
devcd->devcd_dev.class = &devcd_class;
- mutex_lock(&devcd->mutex);
dev_set_uevent_suppress(&devcd->devcd_dev, true);
+
+ /* devcd->mutex prevents devcd_del() completing until init finishes */
+ mutex_lock(&devcd->mutex);
+ devcd->init_completed = false;
+ INIT_DELAYED_WORK(&devcd->del_wk, devcd_del);
+ schedule_delayed_work(&devcd->del_wk, timeout);
+
if (device_add(&devcd->devcd_dev))
goto put_device;
@@ -401,13 +424,20 @@ void dev_coredumpm_timeout(struct device *dev, struct module *owner,
dev_set_uevent_suppress(&devcd->devcd_dev, false);
kobject_uevent(&devcd->devcd_dev.kobj, KOBJ_ADD);
- INIT_DELAYED_WORK(&devcd->del_wk, devcd_del);
- schedule_delayed_work(&devcd->del_wk, timeout);
+
+ /*
+ * Safe to run devcd_del() now that we are done with devcd_dev.
+ * Alternatively we could have taken a ref on devcd_dev before
+ * dropping the lock.
+ */
+ devcd->init_completed = true;
mutex_unlock(&devcd->mutex);
return;
put_device:
- put_device(&devcd->devcd_dev);
mutex_unlock(&devcd->mutex);
+ cancel_delayed_work_sync(&devcd->del_wk);
+ put_device(&devcd->devcd_dev);
+
put_module:
module_put(owner);
free:
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 2a27f6a8fb5722223d526843040f747e9b0e8060
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102041-mounting-pursuit-e9d3@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 2a27f6a8fb5722223d526843040f747e9b0e8060 Mon Sep 17 00:00:00 2001
From: Celeste Liu <uwu(a)coelacanthus.name>
Date: Tue, 30 Sep 2025 19:34:28 +0800
Subject: [PATCH] can: gs_usb: increase max interface to U8_MAX
This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD
converter[1]. The original developers may have only 3 interfaces
device to test so they write 3 here and wait for future change.
During the HSCanT development, we actually used 4 interfaces, so the
limitation of 3 is not enough now. But just increase one is not
future-proofed. Since the channel index type in gs_host_frame is u8,
just make canch[] become a flexible array with a u8 index, so it
naturally constraint by U8_MAX and avoid statically allocate 256
pointer for every gs_usb device.
[1]: https://github.com/cherry-embedded/HSCanT-hardware
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Vincent Mailhol <mailhol(a)kernel.org>
Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name>
Link: https://patch.msgid.link/20250930-gs-usb-max-if-v5-1-863330bf6666@coelacant…
Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de>
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index c9482d6e947b..9fb4cbbd6d6d 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -289,11 +289,6 @@ struct gs_host_frame {
#define GS_MAX_RX_URBS 30
#define GS_NAPI_WEIGHT 32
-/* Maximum number of interfaces the driver supports per device.
- * Current hardware only supports 3 interfaces. The future may vary.
- */
-#define GS_MAX_INTF 3
-
struct gs_tx_context {
struct gs_can *dev;
unsigned int echo_id;
@@ -324,7 +319,6 @@ struct gs_can {
/* usb interface struct */
struct gs_usb {
- struct gs_can *canch[GS_MAX_INTF];
struct usb_anchor rx_submitted;
struct usb_device *udev;
@@ -336,9 +330,11 @@ struct gs_usb {
unsigned int hf_size_rx;
u8 active_channels;
+ u8 channel_cnt;
unsigned int pipe_in;
unsigned int pipe_out;
+ struct gs_can *canch[] __counted_by(channel_cnt);
};
/* 'allocate' a tx context.
@@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
}
/* device reports out of range channel id */
- if (hf->channel >= GS_MAX_INTF)
+ if (hf->channel >= parent->channel_cnt)
goto device_detach;
dev = parent->canch[hf->channel];
@@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
/* USB failure take down all interfaces */
if (rc == -ENODEV) {
device_detach:
- for (rc = 0; rc < GS_MAX_INTF; rc++) {
+ for (rc = 0; rc < parent->channel_cnt; rc++) {
if (parent->canch[rc])
netif_device_detach(parent->canch[rc]->netdev);
}
@@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf,
icount = dconf.icount + 1;
dev_info(&intf->dev, "Configuring for %u interfaces\n", icount);
- if (icount > GS_MAX_INTF) {
+ if (icount > type_max(parent->channel_cnt)) {
dev_err(&intf->dev,
"Driver cannot handle more that %u CAN interfaces\n",
- GS_MAX_INTF);
+ type_max(parent->channel_cnt));
return -EINVAL;
}
- parent = kzalloc(sizeof(*parent), GFP_KERNEL);
+ parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL);
if (!parent)
return -ENOMEM;
+ parent->channel_cnt = icount;
+
init_usb_anchor(&parent->rx_submitted);
usb_set_intfdata(intf, parent);
@@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf)
return;
}
- for (i = 0; i < GS_MAX_INTF; i++)
+ for (i = 0; i < parent->channel_cnt; i++)
if (parent->canch[i])
gs_destroy_candev(parent->canch[i]);
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 2a27f6a8fb5722223d526843040f747e9b0e8060
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102040-unusual-concur-90e9@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 2a27f6a8fb5722223d526843040f747e9b0e8060 Mon Sep 17 00:00:00 2001
From: Celeste Liu <uwu(a)coelacanthus.name>
Date: Tue, 30 Sep 2025 19:34:28 +0800
Subject: [PATCH] can: gs_usb: increase max interface to U8_MAX
This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD
converter[1]. The original developers may have only 3 interfaces
device to test so they write 3 here and wait for future change.
During the HSCanT development, we actually used 4 interfaces, so the
limitation of 3 is not enough now. But just increase one is not
future-proofed. Since the channel index type in gs_host_frame is u8,
just make canch[] become a flexible array with a u8 index, so it
naturally constraint by U8_MAX and avoid statically allocate 256
pointer for every gs_usb device.
[1]: https://github.com/cherry-embedded/HSCanT-hardware
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Vincent Mailhol <mailhol(a)kernel.org>
Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name>
Link: https://patch.msgid.link/20250930-gs-usb-max-if-v5-1-863330bf6666@coelacant…
Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de>
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index c9482d6e947b..9fb4cbbd6d6d 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -289,11 +289,6 @@ struct gs_host_frame {
#define GS_MAX_RX_URBS 30
#define GS_NAPI_WEIGHT 32
-/* Maximum number of interfaces the driver supports per device.
- * Current hardware only supports 3 interfaces. The future may vary.
- */
-#define GS_MAX_INTF 3
-
struct gs_tx_context {
struct gs_can *dev;
unsigned int echo_id;
@@ -324,7 +319,6 @@ struct gs_can {
/* usb interface struct */
struct gs_usb {
- struct gs_can *canch[GS_MAX_INTF];
struct usb_anchor rx_submitted;
struct usb_device *udev;
@@ -336,9 +330,11 @@ struct gs_usb {
unsigned int hf_size_rx;
u8 active_channels;
+ u8 channel_cnt;
unsigned int pipe_in;
unsigned int pipe_out;
+ struct gs_can *canch[] __counted_by(channel_cnt);
};
/* 'allocate' a tx context.
@@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
}
/* device reports out of range channel id */
- if (hf->channel >= GS_MAX_INTF)
+ if (hf->channel >= parent->channel_cnt)
goto device_detach;
dev = parent->canch[hf->channel];
@@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
/* USB failure take down all interfaces */
if (rc == -ENODEV) {
device_detach:
- for (rc = 0; rc < GS_MAX_INTF; rc++) {
+ for (rc = 0; rc < parent->channel_cnt; rc++) {
if (parent->canch[rc])
netif_device_detach(parent->canch[rc]->netdev);
}
@@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf,
icount = dconf.icount + 1;
dev_info(&intf->dev, "Configuring for %u interfaces\n", icount);
- if (icount > GS_MAX_INTF) {
+ if (icount > type_max(parent->channel_cnt)) {
dev_err(&intf->dev,
"Driver cannot handle more that %u CAN interfaces\n",
- GS_MAX_INTF);
+ type_max(parent->channel_cnt));
return -EINVAL;
}
- parent = kzalloc(sizeof(*parent), GFP_KERNEL);
+ parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL);
if (!parent)
return -ENOMEM;
+ parent->channel_cnt = icount;
+
init_usb_anchor(&parent->rx_submitted);
usb_set_intfdata(intf, parent);
@@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf)
return;
}
- for (i = 0; i < GS_MAX_INTF; i++)
+ for (i = 0; i < parent->channel_cnt; i++)
if (parent->canch[i])
gs_destroy_candev(parent->canch[i]);
In a past bug fix it was forgotten that entity access must be protected
by the entity lock. That's a data race and potentially UB.
Move the spin_unlock() to the appropriate position.
Cc: stable(a)vger.kernel.org # v5.13+
Fixes: ac4eb83ab255 ("drm/sched: select new rq even if there is only one v3")
Signed-off-by: Philipp Stanner <phasta(a)kernel.org>
---
drivers/gpu/drm/scheduler/sched_entity.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
index 5a4697f636f2..aa222166de58 100644
--- a/drivers/gpu/drm/scheduler/sched_entity.c
+++ b/drivers/gpu/drm/scheduler/sched_entity.c
@@ -552,10 +552,11 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity)
drm_sched_rq_remove_entity(entity->rq, entity);
entity->rq = rq;
}
- spin_unlock(&entity->lock);
if (entity->num_sched_list == 1)
entity->sched_list = NULL;
+
+ spin_unlock(&entity->lock);
}
/**
--
2.49.0
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 2a27f6a8fb5722223d526843040f747e9b0e8060
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102039-detoxify-trustee-aa22@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 2a27f6a8fb5722223d526843040f747e9b0e8060 Mon Sep 17 00:00:00 2001
From: Celeste Liu <uwu(a)coelacanthus.name>
Date: Tue, 30 Sep 2025 19:34:28 +0800
Subject: [PATCH] can: gs_usb: increase max interface to U8_MAX
This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD
converter[1]. The original developers may have only 3 interfaces
device to test so they write 3 here and wait for future change.
During the HSCanT development, we actually used 4 interfaces, so the
limitation of 3 is not enough now. But just increase one is not
future-proofed. Since the channel index type in gs_host_frame is u8,
just make canch[] become a flexible array with a u8 index, so it
naturally constraint by U8_MAX and avoid statically allocate 256
pointer for every gs_usb device.
[1]: https://github.com/cherry-embedded/HSCanT-hardware
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Vincent Mailhol <mailhol(a)kernel.org>
Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name>
Link: https://patch.msgid.link/20250930-gs-usb-max-if-v5-1-863330bf6666@coelacant…
Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de>
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index c9482d6e947b..9fb4cbbd6d6d 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -289,11 +289,6 @@ struct gs_host_frame {
#define GS_MAX_RX_URBS 30
#define GS_NAPI_WEIGHT 32
-/* Maximum number of interfaces the driver supports per device.
- * Current hardware only supports 3 interfaces. The future may vary.
- */
-#define GS_MAX_INTF 3
-
struct gs_tx_context {
struct gs_can *dev;
unsigned int echo_id;
@@ -324,7 +319,6 @@ struct gs_can {
/* usb interface struct */
struct gs_usb {
- struct gs_can *canch[GS_MAX_INTF];
struct usb_anchor rx_submitted;
struct usb_device *udev;
@@ -336,9 +330,11 @@ struct gs_usb {
unsigned int hf_size_rx;
u8 active_channels;
+ u8 channel_cnt;
unsigned int pipe_in;
unsigned int pipe_out;
+ struct gs_can *canch[] __counted_by(channel_cnt);
};
/* 'allocate' a tx context.
@@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
}
/* device reports out of range channel id */
- if (hf->channel >= GS_MAX_INTF)
+ if (hf->channel >= parent->channel_cnt)
goto device_detach;
dev = parent->canch[hf->channel];
@@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
/* USB failure take down all interfaces */
if (rc == -ENODEV) {
device_detach:
- for (rc = 0; rc < GS_MAX_INTF; rc++) {
+ for (rc = 0; rc < parent->channel_cnt; rc++) {
if (parent->canch[rc])
netif_device_detach(parent->canch[rc]->netdev);
}
@@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf,
icount = dconf.icount + 1;
dev_info(&intf->dev, "Configuring for %u interfaces\n", icount);
- if (icount > GS_MAX_INTF) {
+ if (icount > type_max(parent->channel_cnt)) {
dev_err(&intf->dev,
"Driver cannot handle more that %u CAN interfaces\n",
- GS_MAX_INTF);
+ type_max(parent->channel_cnt));
return -EINVAL;
}
- parent = kzalloc(sizeof(*parent), GFP_KERNEL);
+ parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL);
if (!parent)
return -ENOMEM;
+ parent->channel_cnt = icount;
+
init_usb_anchor(&parent->rx_submitted);
usb_set_intfdata(intf, parent);
@@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf)
return;
}
- for (i = 0; i < GS_MAX_INTF; i++)
+ for (i = 0; i < parent->channel_cnt; i++)
if (parent->canch[i])
gs_destroy_candev(parent->canch[i]);
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 2a27f6a8fb5722223d526843040f747e9b0e8060
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102038-outsource-awhile-6150@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 2a27f6a8fb5722223d526843040f747e9b0e8060 Mon Sep 17 00:00:00 2001
From: Celeste Liu <uwu(a)coelacanthus.name>
Date: Tue, 30 Sep 2025 19:34:28 +0800
Subject: [PATCH] can: gs_usb: increase max interface to U8_MAX
This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD
converter[1]. The original developers may have only 3 interfaces
device to test so they write 3 here and wait for future change.
During the HSCanT development, we actually used 4 interfaces, so the
limitation of 3 is not enough now. But just increase one is not
future-proofed. Since the channel index type in gs_host_frame is u8,
just make canch[] become a flexible array with a u8 index, so it
naturally constraint by U8_MAX and avoid statically allocate 256
pointer for every gs_usb device.
[1]: https://github.com/cherry-embedded/HSCanT-hardware
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com>
Cc: stable(a)vger.kernel.org
Reviewed-by: Vincent Mailhol <mailhol(a)kernel.org>
Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name>
Link: https://patch.msgid.link/20250930-gs-usb-max-if-v5-1-863330bf6666@coelacant…
Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de>
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index c9482d6e947b..9fb4cbbd6d6d 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -289,11 +289,6 @@ struct gs_host_frame {
#define GS_MAX_RX_URBS 30
#define GS_NAPI_WEIGHT 32
-/* Maximum number of interfaces the driver supports per device.
- * Current hardware only supports 3 interfaces. The future may vary.
- */
-#define GS_MAX_INTF 3
-
struct gs_tx_context {
struct gs_can *dev;
unsigned int echo_id;
@@ -324,7 +319,6 @@ struct gs_can {
/* usb interface struct */
struct gs_usb {
- struct gs_can *canch[GS_MAX_INTF];
struct usb_anchor rx_submitted;
struct usb_device *udev;
@@ -336,9 +330,11 @@ struct gs_usb {
unsigned int hf_size_rx;
u8 active_channels;
+ u8 channel_cnt;
unsigned int pipe_in;
unsigned int pipe_out;
+ struct gs_can *canch[] __counted_by(channel_cnt);
};
/* 'allocate' a tx context.
@@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
}
/* device reports out of range channel id */
- if (hf->channel >= GS_MAX_INTF)
+ if (hf->channel >= parent->channel_cnt)
goto device_detach;
dev = parent->canch[hf->channel];
@@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
/* USB failure take down all interfaces */
if (rc == -ENODEV) {
device_detach:
- for (rc = 0; rc < GS_MAX_INTF; rc++) {
+ for (rc = 0; rc < parent->channel_cnt; rc++) {
if (parent->canch[rc])
netif_device_detach(parent->canch[rc]->netdev);
}
@@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf,
icount = dconf.icount + 1;
dev_info(&intf->dev, "Configuring for %u interfaces\n", icount);
- if (icount > GS_MAX_INTF) {
+ if (icount > type_max(parent->channel_cnt)) {
dev_err(&intf->dev,
"Driver cannot handle more that %u CAN interfaces\n",
- GS_MAX_INTF);
+ type_max(parent->channel_cnt));
return -EINVAL;
}
- parent = kzalloc(sizeof(*parent), GFP_KERNEL);
+ parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL);
if (!parent)
return -ENOMEM;
+ parent->channel_cnt = icount;
+
init_usb_anchor(&parent->rx_submitted);
usb_set_intfdata(intf, parent);
@@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf)
return;
}
- for (i = 0; i < GS_MAX_INTF; i++)
+ for (i = 0; i < parent->channel_cnt; i++)
if (parent->canch[i])
gs_destroy_candev(parent->canch[i]);
From: Benjamin Berg <benjamin.berg(a)intel.com>
The normal timer mechanism assume that timeout further in the future
need a lower accuracy. As an example, the granularity for a timer
scheduled 4096 ms in the future on a 1000 Hz system is already 512 ms.
This granularity is perfectly sufficient for e.g. timeouts, but there
are other types of events that will happen at a future point in time and
require a higher accuracy.
Add a new wiphy_hrtimer_work type that uses an hrtimer internally. The
API is almost identical to the existing wiphy_delayed_work and it can be
used as a drop-in replacement after minor adjustments. The work will be
scheduled relative to the current time with a slack of 1 millisecond.
CC: stable(a)vger.kernel.org # 6.4+
Signed-off-by: Benjamin Berg <benjamin.berg(a)intel.com>
Reviewed-by: Johannes Berg <johannes.berg(a)intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit(a)intel.com>
---
include/net/cfg80211.h | 78 ++++++++++++++++++++++++++++++++++++++++++
net/wireless/core.c | 56 ++++++++++++++++++++++++++++++
net/wireless/trace.h | 21 ++++++++++++
3 files changed, 155 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 53490eb04e87..f2e8963cfaac 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6440,6 +6440,11 @@ static inline void wiphy_delayed_work_init(struct wiphy_delayed_work *dwork,
* after wiphy_lock() was called. Therefore, wiphy_cancel_work() can
* use just cancel_work() instead of cancel_work_sync(), it requires
* being in a section protected by wiphy_lock().
+ *
+ * Note that these are scheduled with a timer where the accuracy
+ * becomes less the longer in the future the scheduled timer is. Use
+ * wiphy_hrtimer_work_queue() if the timer must be not be late by more
+ * than approximately 10 percent.
*/
void wiphy_delayed_work_queue(struct wiphy *wiphy,
struct wiphy_delayed_work *dwork,
@@ -6511,6 +6516,79 @@ void wiphy_delayed_work_flush(struct wiphy *wiphy,
bool wiphy_delayed_work_pending(struct wiphy *wiphy,
struct wiphy_delayed_work *dwork);
+struct wiphy_hrtimer_work {
+ struct wiphy_work work;
+ struct wiphy *wiphy;
+ struct hrtimer timer;
+};
+
+enum hrtimer_restart wiphy_hrtimer_work_timer(struct hrtimer *t);
+
+static inline void wiphy_hrtimer_work_init(struct wiphy_hrtimer_work *hrwork,
+ wiphy_work_func_t func)
+{
+ hrtimer_setup(&hrwork->timer, wiphy_hrtimer_work_timer,
+ CLOCK_BOOTTIME, HRTIMER_MODE_REL);
+ wiphy_work_init(&hrwork->work, func);
+}
+
+/**
+ * wiphy_hrtimer_work_queue - queue hrtimer work for the wiphy
+ * @wiphy: the wiphy to queue for
+ * @hrwork: the high resolution timer worker
+ * @delay: the delay given as a ktime_t
+ *
+ * Please refer to wiphy_delayed_work_queue(). The difference is that
+ * the hrtimer work uses a high resolution timer for scheduling. This
+ * may be needed if timeouts might be scheduled further in the future
+ * and the accuracy of the normal timer is not sufficient.
+ *
+ * Expect a delay of a few milliseconds as the timer is scheduled
+ * with some slack and some more time may pass between queueing the
+ * work and its start.
+ */
+void wiphy_hrtimer_work_queue(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork,
+ ktime_t delay);
+
+/**
+ * wiphy_hrtimer_work_cancel - cancel previously queued hrtimer work
+ * @wiphy: the wiphy, for debug purposes
+ * @hrtimer: the hrtimer work to cancel
+ *
+ * Cancel the work *without* waiting for it, this assumes being
+ * called under the wiphy mutex acquired by wiphy_lock().
+ */
+void wiphy_hrtimer_work_cancel(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrtimer);
+
+/**
+ * wiphy_hrtimer_work_flush - flush previously queued hrtimer work
+ * @wiphy: the wiphy, for debug purposes
+ * @hrwork: the hrtimer work to flush
+ *
+ * Flush the work (i.e. run it if pending). This must be called
+ * under the wiphy mutex acquired by wiphy_lock().
+ */
+void wiphy_hrtimer_work_flush(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork);
+
+/**
+ * wiphy_hrtimer_work_pending - Find out whether a wiphy hrtimer
+ * work item is currently pending.
+ *
+ * @wiphy: the wiphy, for debug purposes
+ * @hrwork: the hrtimer work in question
+ *
+ * Return: true if timer is pending, false otherwise
+ *
+ * Please refer to the wiphy_delayed_work_pending() documentation as
+ * this is the equivalent function for hrtimer based delayed work
+ * items.
+ */
+bool wiphy_hrtimer_work_pending(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork);
+
/**
* enum ieee80211_ap_reg_power - regulatory power for an Access Point
*
diff --git a/net/wireless/core.c b/net/wireless/core.c
index f3568eb5e592..9f858a83e912 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1802,6 +1802,62 @@ bool wiphy_delayed_work_pending(struct wiphy *wiphy,
}
EXPORT_SYMBOL_GPL(wiphy_delayed_work_pending);
+enum hrtimer_restart wiphy_hrtimer_work_timer(struct hrtimer *t)
+{
+ struct wiphy_hrtimer_work *hrwork =
+ container_of(t, struct wiphy_hrtimer_work, timer);
+
+ wiphy_work_queue(hrwork->wiphy, &hrwork->work);
+
+ return HRTIMER_NORESTART;
+}
+EXPORT_SYMBOL_GPL(wiphy_hrtimer_work_timer);
+
+void wiphy_hrtimer_work_queue(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork,
+ ktime_t delay)
+{
+ trace_wiphy_hrtimer_work_queue(wiphy, &hrwork->work, delay);
+
+ if (!delay) {
+ hrtimer_cancel(&hrwork->timer);
+ wiphy_work_queue(wiphy, &hrwork->work);
+ return;
+ }
+
+ hrwork->wiphy = wiphy;
+ hrtimer_start_range_ns(&hrwork->timer, delay,
+ 1000 * NSEC_PER_USEC, HRTIMER_MODE_REL);
+}
+EXPORT_SYMBOL_GPL(wiphy_hrtimer_work_queue);
+
+void wiphy_hrtimer_work_cancel(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork)
+{
+ lockdep_assert_held(&wiphy->mtx);
+
+ hrtimer_cancel(&hrwork->timer);
+ wiphy_work_cancel(wiphy, &hrwork->work);
+}
+EXPORT_SYMBOL_GPL(wiphy_hrtimer_work_cancel);
+
+void wiphy_hrtimer_work_flush(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork)
+{
+ lockdep_assert_held(&wiphy->mtx);
+
+ hrtimer_cancel(&hrwork->timer);
+ wiphy_work_flush(wiphy, &hrwork->work);
+}
+EXPORT_SYMBOL_GPL(wiphy_hrtimer_work_flush);
+
+bool wiphy_hrtimer_work_pending(struct wiphy *wiphy,
+ struct wiphy_hrtimer_work *hrwork)
+{
+ return hrtimer_is_queued(&hrwork->timer);
+}
+EXPORT_SYMBOL_GPL(wiphy_hrtimer_work_pending);
+
static int __init cfg80211_init(void)
{
int err;
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 8a4c34112eb5..2b71f1d867a0 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -304,6 +304,27 @@ TRACE_EVENT(wiphy_delayed_work_queue,
__entry->delay)
);
+TRACE_EVENT(wiphy_hrtimer_work_queue,
+ TP_PROTO(struct wiphy *wiphy, struct wiphy_work *work,
+ ktime_t delay),
+ TP_ARGS(wiphy, work, delay),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ __field(void *, instance)
+ __field(void *, func)
+ __field(ktime_t, delay)
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ __entry->instance = work;
+ __entry->func = work->func;
+ __entry->delay = delay;
+ ),
+ TP_printk(WIPHY_PR_FMT " instance=%p func=%pS delay=%llu",
+ WIPHY_PR_ARG, __entry->instance, __entry->func,
+ __entry->delay)
+);
+
TRACE_EVENT(wiphy_work_worker_start,
TP_PROTO(struct wiphy *wiphy),
TP_ARGS(wiphy),
--
2.34.1
When kvrealloc() fails, the original markers memory is leaked
because the function directly assigns the NULL to the markers pointer,
losing the reference to the original memory.
As a result, the kvfree() in pt_dump_init() ends up freeing NULL instead
of the previously allocated memory.
Fix this by using a temporary variable to store kvrealloc()'s return
value and only update the markers pointer on success.
Found via static anlaysis and this is similar to commit 42378a9ca553
("bpf, verifier: Fix memory leak in array reallocation for stack state")
Fixes: d0e7915d2ad3 ("s390/mm/ptdump: Generate address marker array dynamically")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com>
---
arch/s390/mm/dump_pagetables.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 9af2aae0a515..0f2e0c93a1e0 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -291,16 +291,19 @@ static int ptdump_cmp(const void *a, const void *b)
static int add_marker(unsigned long start, unsigned long end, const char *name)
{
+ struct addr_marker *new_markers;
size_t oldsize, newsize;
oldsize = markers_cnt * sizeof(*markers);
newsize = oldsize + 2 * sizeof(*markers);
if (!oldsize)
- markers = kvmalloc(newsize, GFP_KERNEL);
+ new_markers = kvmalloc(newsize, GFP_KERNEL);
else
- markers = kvrealloc(markers, newsize, GFP_KERNEL);
- if (!markers)
+ new_markers = kvrealloc(markers, newsize, GFP_KERNEL);
+ if (!new_markers)
goto error;
+
+ markers = new_markers;
markers[markers_cnt].is_start = 1;
markers[markers_cnt].start_address = start;
markers[markers_cnt].size = end - start;
--
2.39.5 (Apple Git-154)
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x f7c877e7535260cc7a21484c994e8ce7e8cb6780
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102616-navy-creatable-7fad@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f7c877e7535260cc7a21484c994e8ce7e8cb6780 Mon Sep 17 00:00:00 2001
From: Stefano Garzarella <sgarzare(a)redhat.com>
Date: Tue, 21 Oct 2025 14:17:18 +0200
Subject: [PATCH] vsock: fix lock inversion in vsock_assign_transport()
Syzbot reported a potential lock inversion deadlock between
vsock_register_mutex and sk_lock-AF_VSOCK when vsock_linger() is called.
The issue was introduced by commit 687aa0c5581b ("vsock: Fix
transport_* TOCTOU") which added vsock_register_mutex locking in
vsock_assign_transport() around the transport->release() call, that can
call vsock_linger(). vsock_assign_transport() can be called with sk_lock
held. vsock_linger() calls sk_wait_event() that temporarily releases and
re-acquires sk_lock. During this window, if another thread hold
vsock_register_mutex while trying to acquire sk_lock, a circular
dependency is created.
Fix this by releasing vsock_register_mutex before calling
transport->release() and vsock_deassign_transport(). This is safe
because we don't need to hold vsock_register_mutex while releasing the
old transport, and we ensure the new transport won't disappear by
obtaining a module reference first via try_module_get().
Reported-by: syzbot+10e35716f8e4929681fa(a)syzkaller.appspotmail.com
Tested-by: syzbot+10e35716f8e4929681fa(a)syzkaller.appspotmail.com
Fixes: 687aa0c5581b ("vsock: Fix transport_* TOCTOU")
Cc: mhal(a)rbox.co
Cc: stable(a)vger.kernel.org
Signed-off-by: Stefano Garzarella <sgarzare(a)redhat.com>
Link: https://patch.msgid.link/20251021121718.137668-1-sgarzare@redhat.com
Signed-off-by: Paolo Abeni <pabeni(a)redhat.com>
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 4c2db6cca557..76763247a377 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -487,12 +487,26 @@ int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk)
goto err;
}
- if (vsk->transport) {
- if (vsk->transport == new_transport) {
- ret = 0;
- goto err;
- }
+ if (vsk->transport && vsk->transport == new_transport) {
+ ret = 0;
+ goto err;
+ }
+ /* We increase the module refcnt to prevent the transport unloading
+ * while there are open sockets assigned to it.
+ */
+ if (!new_transport || !try_module_get(new_transport->module)) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ /* It's safe to release the mutex after a successful try_module_get().
+ * Whichever transport `new_transport` points at, it won't go away until
+ * the last module_put() below or in vsock_deassign_transport().
+ */
+ mutex_unlock(&vsock_register_mutex);
+
+ if (vsk->transport) {
/* transport->release() must be called with sock lock acquired.
* This path can only be taken during vsock_connect(), where we
* have already held the sock lock. In the other cases, this
@@ -512,20 +526,6 @@ int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk)
vsk->peer_shutdown = 0;
}
- /* We increase the module refcnt to prevent the transport unloading
- * while there are open sockets assigned to it.
- */
- if (!new_transport || !try_module_get(new_transport->module)) {
- ret = -ENODEV;
- goto err;
- }
-
- /* It's safe to release the mutex after a successful try_module_get().
- * Whichever transport `new_transport` points at, it won't go away until
- * the last module_put() below or in vsock_deassign_transport().
- */
- mutex_unlock(&vsock_register_mutex);
-
if (sk->sk_type == SOCK_SEQPACKET) {
if (!new_transport->seqpacket_allow ||
!new_transport->seqpacket_allow(remote_cid)) {
The driver_find_device() function returns a device with its reference
count incremented. The caller is responsible for calling put_device()
to release this reference when done. Fix this leak by adding the missing
put_device() call.
Found via static analysis.
Fixes: f68ba6912bd2 ("drm/tegra: dc: Link DC1 to DC0 on Tegra20")
Cc: stable(a)vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com>
---
drivers/gpu/drm/tegra/dc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 59d5c1ba145a..6c84bd69b11f 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -3148,6 +3148,7 @@ static int tegra_dc_couple(struct tegra_dc *dc)
dc->client.parent = &parent->client;
dev_dbg(dc->dev, "coupled to %s\n", dev_name(companion));
+ put_device(companion);
}
return 0;
--
2.39.5 (Apple Git-154)
From: Wang Haoran <haoranwangsec(a)gmail.com>
commit 27e06650a5eafe832a90fd2604f0c5e920857fae upstream.
A buffer overflow arises from the usage of snprintf to write into the
buffer "buf" in target_lu_gp_members_show function located in
/drivers/target/target_core_configfs.c. This buffer is allocated with
size LU_GROUP_NAME_BUF (256 bytes).
snprintf(...) formats multiple strings into buf with the HBA name
(hba->hba_group.cg_item), a slash character, a devicename (dev->
dev_group.cg_item) and a newline character, the total formatted string
length may exceed the buffer size of 256 bytes.
Since snprintf() returns the total number of bytes that would have been
written (the length of %s/%sn ), this value may exceed the buffer length
(256 bytes) passed to memcpy(), this will ultimately cause function
memcpy reporting a buffer overflow error.
An additional check of the return value of snprintf() can avoid this
buffer overflow.
Reported-by: Wang Haoran <haoranwangsec(a)gmail.com>
Reported-by: ziiiro <yuanmingbuaa(a)gmail.com>
Signed-off-by: Wang Haoran <haoranwangsec(a)gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com>
[Andrey Troshin: patch adaptation for linux-5.10]
Signed-off-by: Andrey Troshin <drtrosh(a)yandex-team.ru>
---
Backport fix for CVE-2025-39998
Link: https://nvd.nist.gov/vuln/detail/CVE-2025-39998
---
drivers/target/target_core_configfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 4d2fbe1429b6..e6996428c07d 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -2637,7 +2637,7 @@ static ssize_t target_lu_gp_members_show(struct config_item *item, char *page)
config_item_name(&dev->dev_group.cg_item));
cur_len++; /* Extra byte for NULL terminator */
- if ((cur_len + len) > PAGE_SIZE) {
+ if ((cur_len + len) > PAGE_SIZE || cur_len > LU_GROUP_NAME_BUF) {
pr_warn("Ran out of lu_gp_show_attr"
"_members buffer\n");
break;
--
2.34.1
📞 For the fastest help, call Play Airlines customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Play Airlines and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Play Airlines offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Play Airlines.
📋 Play Airlines Name Correction Policy: The Basics
Play Airlines does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Play Airlines ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Play Airlines Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Play Airlines at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Play Airlines, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
📞 For the fastest help, call Aer Lingus customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Aer Lingus and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Aer Lingus offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Aer Lingus.
📋 Aer Lingus Name Correction Policy: The Basics
Aer Lingus does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Aer Lingus ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Aer Lingus Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Aer Lingus at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Aer Lingus, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 1c05bf6c0262f946571a37678250193e46b1ff0f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102740-stiffly-recolor-e335@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 1c05bf6c0262f946571a37678250193e46b1ff0f Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Date: Mon, 6 Oct 2025 10:20:02 -0400
Subject: [PATCH] serial: sc16is7xx: remove useless enable of enhanced features
Commit 43c51bb573aa ("sc16is7xx: make sure device is in suspend once
probed") permanently enabled access to the enhanced features in
sc16is7xx_probe(), and it is never disabled after that.
Therefore, remove re-enable of enhanced features in
sc16is7xx_set_baud(). This eliminates a potential useless read + write
cycle each time the baud rate is reconfigured.
Fixes: 43c51bb573aa ("sc16is7xx: make sure device is in suspend once probed")
Cc: stable <stable(a)kernel.org>
Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Link: https://patch.msgid.link/20251006142002.177475-1-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 1a2c4c14f6aa..c7435595dce1 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -588,13 +588,6 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
div /= prescaler;
}
- /* Enable enhanced features */
- sc16is7xx_efr_lock(port);
- sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
- SC16IS7XX_EFR_ENABLE_BIT,
- SC16IS7XX_EFR_ENABLE_BIT);
- sc16is7xx_efr_unlock(port);
-
/* If bit MCR_CLKSEL is set, the divide by 4 prescaler is activated. */
sc16is7xx_port_update(port, SC16IS7XX_MCR_REG,
SC16IS7XX_MCR_CLKSEL_BIT,
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 1c05bf6c0262f946571a37678250193e46b1ff0f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102740-umpire-tactile-9042@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 1c05bf6c0262f946571a37678250193e46b1ff0f Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Date: Mon, 6 Oct 2025 10:20:02 -0400
Subject: [PATCH] serial: sc16is7xx: remove useless enable of enhanced features
Commit 43c51bb573aa ("sc16is7xx: make sure device is in suspend once
probed") permanently enabled access to the enhanced features in
sc16is7xx_probe(), and it is never disabled after that.
Therefore, remove re-enable of enhanced features in
sc16is7xx_set_baud(). This eliminates a potential useless read + write
cycle each time the baud rate is reconfigured.
Fixes: 43c51bb573aa ("sc16is7xx: make sure device is in suspend once probed")
Cc: stable <stable(a)kernel.org>
Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Link: https://patch.msgid.link/20251006142002.177475-1-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 1a2c4c14f6aa..c7435595dce1 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -588,13 +588,6 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
div /= prescaler;
}
- /* Enable enhanced features */
- sc16is7xx_efr_lock(port);
- sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
- SC16IS7XX_EFR_ENABLE_BIT,
- SC16IS7XX_EFR_ENABLE_BIT);
- sc16is7xx_efr_unlock(port);
-
/* If bit MCR_CLKSEL is set, the divide by 4 prescaler is activated. */
sc16is7xx_port_update(port, SC16IS7XX_MCR_REG,
SC16IS7XX_MCR_CLKSEL_BIT,
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 1c05bf6c0262f946571a37678250193e46b1ff0f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102740-dumpster-clapper-519c@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 1c05bf6c0262f946571a37678250193e46b1ff0f Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Date: Mon, 6 Oct 2025 10:20:02 -0400
Subject: [PATCH] serial: sc16is7xx: remove useless enable of enhanced features
Commit 43c51bb573aa ("sc16is7xx: make sure device is in suspend once
probed") permanently enabled access to the enhanced features in
sc16is7xx_probe(), and it is never disabled after that.
Therefore, remove re-enable of enhanced features in
sc16is7xx_set_baud(). This eliminates a potential useless read + write
cycle each time the baud rate is reconfigured.
Fixes: 43c51bb573aa ("sc16is7xx: make sure device is in suspend once probed")
Cc: stable <stable(a)kernel.org>
Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Link: https://patch.msgid.link/20251006142002.177475-1-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 1a2c4c14f6aa..c7435595dce1 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -588,13 +588,6 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
div /= prescaler;
}
- /* Enable enhanced features */
- sc16is7xx_efr_lock(port);
- sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
- SC16IS7XX_EFR_ENABLE_BIT,
- SC16IS7XX_EFR_ENABLE_BIT);
- sc16is7xx_efr_unlock(port);
-
/* If bit MCR_CLKSEL is set, the divide by 4 prescaler is activated. */
sc16is7xx_port_update(port, SC16IS7XX_MCR_REG,
SC16IS7XX_MCR_CLKSEL_BIT,
Need to talk to a real person Malaysia Airlines? Calling Malaysia Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Malaysia Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Malaysia Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Malaysia Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Malaysia Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Malaysia Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
📞 For the fastest help, call Vietnam Airlines customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Vietnam Airlines and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Vietnam Airlines offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Vietnam Airlines.
📋 Vietnam Airlines Name Correction Policy: The Basics
Vietnam Airlines does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Vietnam Airlines ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Vietnam Airlines Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Vietnam Airlines at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Vietnam Airlines, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
📞 For the fastest help, call Etihad Airways customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Etihad Airways and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Etihad Airways offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Etihad Airways.
📋 Etihad Airways Name Correction Policy: The Basics
Etihad Airways does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Etihad Airways ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Etihad Airways Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Etihad Airways at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Etihad Airways, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
Need to talk to a real person LATAM Airlines? Calling LATAM Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real LATAM Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach LATAM Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM LATAM Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the LATAM Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to LATAM Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Frontier Airlines? Calling Frontier Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Frontier Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Frontier Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Frontier Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Frontier Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Frontier Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person ExpressJet Airlines? Calling ExpressJet Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real ExpressJet Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach ExpressJet Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM ExpressJet Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the ExpressJet Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to ExpressJet Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Copa Airlines? Calling Copa Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Copa Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Copa Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Copa Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Copa Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Copa Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Contour Airlines? Calling Contour Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Contour Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Contour Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Contour Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Contour Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Contour Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Condor Airlines? Calling Condor Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Condor Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Condor Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Condor Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Condor Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Condor Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x f3d12ec847b945d5d65846c85f062d07d5e73164
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102716-flop-splendor-1e95@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f3d12ec847b945d5d65846c85f062d07d5e73164 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Date: Tue, 14 Oct 2025 01:55:41 +0300
Subject: [PATCH] xhci: dbc: fix bogus 1024 byte prefix if ttyDBC read races
with stall event
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
DbC may add 1024 bogus bytes to the beginneing of the receiving endpoint
if DbC hw triggers a STALL event before any Transfer Blocks (TRBs) for
incoming data are queued, but driver handles the event after it queued
the TRBs.
This is possible as xHCI DbC hardware may trigger spurious STALL transfer
events even if endpoint is empty. The STALL event contains a pointer
to the stalled TRB, and "remaining" untransferred data length.
As there are no TRBs queued yet the STALL event will just point to first
TRB position of the empty ring, with '0' bytes remaining untransferred.
DbC driver is polling for events, and may not handle the STALL event
before /dev/ttyDBC0 is opened and incoming data TRBs are queued.
The DbC event handler will now assume the first queued TRB (length 1024)
has stalled with '0' bytes remaining untransferred, and copies the data
This race situation can be practically mitigated by making sure the event
handler handles all pending transfer events when DbC reaches configured
state, and only then create dev/ttyDbC0, and start queueing transfers.
The event handler can this way detect the STALL events on empty rings
and discard them before any transfers are queued.
This does in practice solve the issue, but still leaves a small possible
gap for the race to trigger.
We still need a way to distinguish spurious STALLs on empty rings with '0'
bytes remaing, from actual STALL events with all bytes transmitted.
Cc: stable <stable(a)kernel.org>
Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver")
Tested-by: Łukasz Bartosik <ukaszb(a)chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 63edf2d8f245..023a8ec6f305 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -892,7 +892,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
dev_info(dbc->dev, "DbC configured\n");
portsc = readl(&dbc->regs->portsc);
writel(portsc, &dbc->regs->portsc);
- return EVT_GSER;
+ ret = EVT_GSER;
+ break;
}
return EVT_DONE;
@@ -954,7 +955,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
break;
case TRB_TYPE(TRB_TRANSFER):
dbc_handle_xfer_event(dbc, evt);
- ret = EVT_XFER_DONE;
+ if (ret != EVT_GSER)
+ ret = EVT_XFER_DONE;
break;
default:
break;
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x f3d12ec847b945d5d65846c85f062d07d5e73164
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025102715-bagginess-civic-022b@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f3d12ec847b945d5d65846c85f062d07d5e73164 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Date: Tue, 14 Oct 2025 01:55:41 +0300
Subject: [PATCH] xhci: dbc: fix bogus 1024 byte prefix if ttyDBC read races
with stall event
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
DbC may add 1024 bogus bytes to the beginneing of the receiving endpoint
if DbC hw triggers a STALL event before any Transfer Blocks (TRBs) for
incoming data are queued, but driver handles the event after it queued
the TRBs.
This is possible as xHCI DbC hardware may trigger spurious STALL transfer
events even if endpoint is empty. The STALL event contains a pointer
to the stalled TRB, and "remaining" untransferred data length.
As there are no TRBs queued yet the STALL event will just point to first
TRB position of the empty ring, with '0' bytes remaining untransferred.
DbC driver is polling for events, and may not handle the STALL event
before /dev/ttyDBC0 is opened and incoming data TRBs are queued.
The DbC event handler will now assume the first queued TRB (length 1024)
has stalled with '0' bytes remaining untransferred, and copies the data
This race situation can be practically mitigated by making sure the event
handler handles all pending transfer events when DbC reaches configured
state, and only then create dev/ttyDbC0, and start queueing transfers.
The event handler can this way detect the STALL events on empty rings
and discard them before any transfers are queued.
This does in practice solve the issue, but still leaves a small possible
gap for the race to trigger.
We still need a way to distinguish spurious STALLs on empty rings with '0'
bytes remaing, from actual STALL events with all bytes transmitted.
Cc: stable <stable(a)kernel.org>
Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver")
Tested-by: Łukasz Bartosik <ukaszb(a)chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 63edf2d8f245..023a8ec6f305 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -892,7 +892,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
dev_info(dbc->dev, "DbC configured\n");
portsc = readl(&dbc->regs->portsc);
writel(portsc, &dbc->regs->portsc);
- return EVT_GSER;
+ ret = EVT_GSER;
+ break;
}
return EVT_DONE;
@@ -954,7 +955,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
break;
case TRB_TYPE(TRB_TRANSFER):
dbc_handle_xfer_event(dbc, evt);
- ret = EVT_XFER_DONE;
+ if (ret != EVT_GSER)
+ ret = EVT_XFER_DONE;
break;
default:
break;
Need to talk to a real person China Eastern Airlines? Calling China Eastern Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real China Eastern Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach China Eastern Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM China Eastern Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the China Eastern Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to China Eastern Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Caribbean Airlines? Calling Caribbean Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Caribbean Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Caribbean Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Caribbean Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Caribbean Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Caribbean Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Avelo Airlines? Calling Avelo Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Avelo Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Avelo Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Avelo Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Avelo Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Avelo Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Alaska Airlines? Calling Alaska Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Alaska Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Alaska Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Alaska Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Alaska Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Alaska Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Aeroméxico Airlines? Calling Aeroméxico Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Aeroméxico Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Aeroméxico Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Aeroméxico Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Aeroméxico Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Aeroméxico Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Air Transat? Calling Air Transat directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Air Transat representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Air Transat (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Air Transat on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Air Transat App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Air Transat, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
📞 For the fastest help, call Scandinavian Airlines customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Scandinavian Airlines and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Scandinavian Airlines offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Scandinavian Airlines.
📋 Scandinavian Airlines Name Correction Policy: The Basics
Scandinavian Airlines does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Scandinavian Airlines ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Scandinavian Airlines Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Scandinavian Airlines at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Scandinavian Airlines, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
Need to talk to a real person Air Canada? Calling Air Canada directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Air Canada representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Air Canada (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Air Canada on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Air Canada App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Air Canada, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Air Algérie? Calling Air Algérie directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Air Algérie representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Air Algérie (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Air Algérie on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Air Algérie App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Air Algérie, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Finnair? Calling Finnair directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Finnair representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Finnair (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Finnair on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Finnair App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Finnair, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
📞 For the fastest help, call Cape Air customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Cape Air and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Cape Air offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Cape Air.
📋 Cape Air Name Correction Policy: The Basics
Cape Air does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Cape Air ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Cape Air Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Cape Air at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Cape Air, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
Need to talk to a real person Scoot? Calling Scoot directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Scoot representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Scoot (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Scoot on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Scoot App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Scoot, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Horizon Air? Calling Horizon Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Horizon Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Horizon Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Horizon Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Horizon Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Horizon Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Flydubai? Calling Flydubai directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Flydubai representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Flydubai (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Flydubai on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Flydubai App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Flydubai, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Envoy Air? Calling Envoy Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Envoy Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Envoy Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Envoy Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Envoy Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Envoy Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Envoy Air? Calling Envoy Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Envoy Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Envoy Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Envoy Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Envoy Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Envoy Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Endeavor Air? Calling Endeavor Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Endeavor Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Endeavor Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Endeavor Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Endeavor Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Endeavor Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person CommuteAir? Calling CommuteAir directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real CommuteAir representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach CommuteAir (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM CommuteAir on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the CommuteAir App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to CommuteAir, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Batik Air? Calling Batik Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Batik Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Batik Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Batik Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Batik Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Batik Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Breeze Airways? Calling Breeze Airways directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Breeze Airways representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Breeze Airways (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Breeze Airways on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Breeze Airways App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Breeze Airways, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Flair Airlines? Calling Flair Airlines directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Flair Airlines representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Flair Airlines (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Flair Airlines on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Flair Airlines App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Flair Airlines, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
📞 For the fastest help, call Cape Air customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Cape Air and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Cape Air offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Cape Air.
📋 Cape Air Name Correction Policy: The Basics
Cape Air does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Cape Air ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Cape Air Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Cape Air at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Cape Air, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
The patch titled
Subject: headers: add check for C standard version
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
headers-add-check-for-c-standard-version.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche…
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Hanne-Lotta M��enp���� <hannelotta(a)gmail.com>
Subject: headers: add check for C standard version
Date: Sun, 26 Oct 2025 21:58:46 +0200
Compiling the kernel with GCC 15 results in errors, as with GCC 15 the
default language version for C compilation has been changed from
-std=gnu17 to -std=gnu23 - unless the language version has been changed
using
KBUILD_CFLAGS += -std=gnu17
or earlier.
C23 includes new keywords 'bool', 'true' and 'false', which cause
compilation errors in Linux headers:
./include/linux/types.h:30:33: error: `bool' cannot be defined
via `typedef'
./include/linux/stddef.h:11:9: error: cannot use keyword `false'
as enumeration constant
Add check for C Standard's version in the header files to be able to
compile the kernel with C23.
Link: https://lkml.kernel.org/r/20251026195846.69740-1-hannelotta@gmail.com
Signed-off-by: Hanne-Lotta M��enp���� <hannelotta(a)gmail.com>
Cc: David Hunter <david.hunter.linux(a)gmail.com>
Cc: "Gustavo A. R. Silva" <gustavoars(a)kernel.org>
Cc: Kees Cook <kees(a)kernel.org>
Cc: Arnd Bergmann <arnd(a)arndb.de>
Cc: <stable(a)vger.kernel.org>
Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org>
---
include/linux/stddef.h | 2 ++
include/linux/types.h | 2 ++
2 files changed, 4 insertions(+)
--- a/include/linux/stddef.h~headers-add-check-for-c-standard-version
+++ a/include/linux/stddef.h
@@ -7,10 +7,12 @@
#undef NULL
#define NULL ((void *)0)
+#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 202311L
enum {
false = 0,
true = 1
};
+#endif
#undef offsetof
#define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
--- a/include/linux/types.h~headers-add-check-for-c-standard-version
+++ a/include/linux/types.h
@@ -32,7 +32,9 @@ typedef __kernel_timer_t timer_t;
typedef __kernel_clockid_t clockid_t;
typedef __kernel_mqd_t mqd_t;
+#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 202311L
typedef _Bool bool;
+#endif
typedef __kernel_uid32_t uid_t;
typedef __kernel_gid32_t gid_t;
_
Patches currently in -mm which might be from hannelotta(a)gmail.com are
headers-add-check-for-c-standard-version.patch
Need to talk to a real person Eurowings? Calling Eurowings directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Eurowings representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Eurowings (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Eurowings on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Eurowings App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Eurowings, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person XiamenAir? Calling XiamenAir directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real XiamenAir representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach XiamenAir (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM XiamenAir on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the XiamenAir App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to XiamenAir, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Western Air? Calling Western Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Western Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Western Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Western Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Western Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Western Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Viva Aerobus? Calling Viva Aerobus directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Viva Aerobus representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Viva Aerobus (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Viva Aerobus on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Viva Aerobus App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Viva Aerobus, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person VietJet Air? Calling VietJet Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real VietJet Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach VietJet Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM VietJet Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the VietJet Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to VietJet Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
📞 For the fastest help, call Copa Airlines customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Copa Airlines and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Copa Airlines offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Copa Airlines.
📋 Copa Airlines Name Correction Policy: The Basics
Copa Airlines does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Copa Airlines ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Copa Airlines Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Copa Airlines at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Copa Airlines, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!
Need to talk to a real person Korean Air? Calling Korean Air directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Korean Air representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Korean Air (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Korean Air on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Korean Air App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Korean Air, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
Need to talk to a real person Transavia France? Calling Transavia France directly at 📞 1-866-284-3022. Whether you are trying to make a flight change, cancel your booking, ask about baggage, or resolve a booking issue, reaching a live agent can save you time, stress, and confusion. While automated systems are useful for simple tasks, some situations just need a human touch.
In this guide, we will walk you through exactly how to reach a live person, what to prepare before calling, and alternate methods if the phone lines are busy.
☎️ First Things First: Call 1-866-284-3022
The most direct and reliable way to speak with a real Transavia France representative is by calling 📞 1-866-284-3022. This is Frontier’s official customer service number and should be your go-to for:
✈️ Flight changes or cancellations
🧾 Refund or credit questions
🛄 Baggage issues
🔁 Name corrections
🛑 Check-in or boarding problems
💺 Seat selection and upgrades
Pro Tip: When calling, try to do so during non-peak hours — early mornings or late evenings — to reduce your hold time.
🎧 How to Navigate the Automated Menu
When you call 1-866-284-3022, you will first hear an automated system. To get through to a live person faster, follow these steps:
Dial 1-866-284-3022
Wait for the automated greeting to begin
Press “1” for English (or “2” for Spanish)
Press “2” for existing reservations
Press “0” to speak with an agent (you may need to press "0" more than once)
👉 If “0” does not work immediately, stay on the line. Sometimes the system transfers you to an agent after a brief wait without needing more input.
If the lines are busy and you are placed on hold, do not hang up — wait times vary, but you will eventually reach someone.
🧾 What to Have Ready Before You Call
To help the agent assist you faster, make sure you have the following details on hand:
📌 Your confirmation code or booking number
📌 The full name on the reservation
📌 Your flight date and destination
📌 Any relevant documents (ID, credit card, etc.)
📌 A notepad for writing down instructions or confirmation numbers
If you are calling to fix a mistake or request a refund, be prepared to briefly explain the issue and possibly provide documentation via email upon request.
⏰ Best Times to Call 1-866-284-3022
Customer service lines can be busy, especially during:
⚠️ Holidays
⚠️ Severe weather or flight delays
⚠️ Early morning flight hours
🎯 For the best chance at a short wait, try calling during these times:
🕔 5:00 AM – 7:00 AM (EST)
🕘 9:00 PM – 11:00 PM (EST)
📅 Midweek (Tuesdays and Wednesdays)
Avoid Mondays if possible — it is the busiest day for airlines.
🧑💻 Alternative Ways to Reach Transavia France (If Phone Fails)
If calling 📞 1-866-284-3022 does not work or you are stuck in a long queue, here are a few alternate ways to get help:
💬 1. Online Chat (Limited Availability)
Visit www.flyfrontier.com
Scroll down and look for the “Let’s Chat” option.
This can connect you to a live agent or AI assistant, depending on availability.
📧 2. Email Support
You can also submit a help request through their Customer Support Form online.
Use this for non-urgent matters like refund requests or documentation review.
📱 3. Social Media
Tweet or DM Transavia France on platforms like Twitter/X (@FlyFrontier) or send a message via Facebook.
Sometimes social media agents respond faster than the phone team during high-volume periods.
📲 4. Mobile App
Download the Transavia France App, log in, and navigate to “My Trips” or “Support” for quick options.
While this will not guarantee a live agent, you might find answers to basic questions faster.
❗ Common Issues That Require a Live Agent
While many tasks can be done online, certain problems are best resolved with a real person at 1-866-284-3022:
🛑 Double charges or billing issues
🔄 Complex flight changes involving multiple passengers
🛄 Lost or delayed baggage
✍️ Legal name changes (marriage, divorce, etc.)
🧑⚕️ Medical or accessibility needs during travel
In these cases, avoid wasting time — call directly and ask for a live agent.
🚨 Beware of Fake Numbers and Scams
Only use the official number: 📞 1-866-284-3022.
Scammers often post fake “Frontier support” numbers online, asking for credit card info or login credentials.
🛡️ Never share your full credit card number or personal information with an unverified source.
✅ Final Thoughts
Talking to a live person at an airline should not be this hard — but when it comes to Transavia France, knowing the right steps and phone number makes all the difference.
🧠 Remember:
Dial 📞 1-866-284-3022
Press 0 to reach a live agent
Call during off-peak hours
Have your booking info ready
Use alternative methods if the line is too busy
💡 The sooner you reach out, the more options you'll have to resolve your issue.
✈️ Whether you are rebooking, fixing an error, or checking a flight, calling 1-866-284-3022 connects you with someone who can truly help.
📞 For the fastest help, call Tap Air customer support at 1-866-284-3022. Their agents are trained to assist with name corrections.
✍️ Did you book a flight with Tap Air and realize your name is misspelled or needs updating? Whether it is a minor typo or a legal name change, it is essential to correct your flight details before travel to avoid problems at check-in. Fortunately, Tap Air offers options for name changes or corrections — and we are here to guide you through the process, step by step.
📌 Why Name Corrections Matter
Airlines require that the name on your ticket exactly matches the name on your government-issued ID or passport. Even a small typo can result in:
❌ Denied boarding
❌ TSA security issues
❌ Non-refundable tickets going to waste
That is why it is important to act quickly if you notice an error.
👉 Pro Tip: As soon as you spot an issue with your name, call 1-866-284-3022 to fix it directly with Tap Air.
📋 Tap Air Name Correction Policy: The Basics
Tap Air does allow name corrections and changes, but there are specific rules based on the type and extent of the correction.
✏️ Minor Name Corrections
If your correction is minor (e.g., spelling mistake, missing middle name, or nickname to legal name), it is usually easy to fix.
Examples:
• “Jonh” to “John”
• “Liz” to “Elizabeth”
• Missing middle name or incorrect initials
🟢 These are typically allowed once per passenger. Call 📞 1-866-284-3022 to request a minor correction. You may need to provide identification or legal documentation.
🔄 Major Name Changes
For legal name changes due to:
• Marriage 👰
• Divorce 💔
• Legal court order 📄
You will likely be required to submit legal documents (e.g., marriage certificate, divorce decree, or court papers).
Important: Name changes are different from transferring your ticket to someone else — Sun Country does not allow name transfers. The passenger must remain the same person.
📞 For clarity and assistance, it is best to speak to a representative at 1-866-284-3022.
💰 Are There Any Fees for Name Changes?
Yes, in most cases, Sun Country charges a name change or correction fee, which may vary depending on:
• The type of fare you purchased
• How close it is to your departure date
• Whether the change is made online or via customer service
Fees can range from $75 to $150, though minor corrections may be less, especially if made within 24 hours of booking.
🎯 To get an accurate quote and understand your options, call 1-866-284-3022 and speak with a Sun Country agent.
🌐 How to Request a Name Correction
There are two main ways to request a name correction on your Tap Air ticket:
✅ 1. Call Customer Support (Recommended)
📞 Dial 1-866-284-3022
📄 Provide your confirmation number, full incorrect name, and the correct name
🧾 Have a valid ID or legal document ready, if needed
🎟️ The agent will process the change and send you an updated itinerary
Calling ensures faster processing and personalized help.
💻 2. Manage Booking Online
While not all name changes can be made online, you can attempt to:
1. Visit official Sun Country website
2. Click on "My Trips"
3. Enter your last name and confirmation code
4. Look for an option to edit passenger details
📌 If you cannot make changes online, revert to calling 📞 1-866-284-3022.
⏱️ Time-Sensitive Corrections: Act Fast!
If your flight is within 24 to 48 hours, do not delay. Last-minute changes can be harder to process and may result in additional fees or denied boarding.
🚨 Urgent situations? Call 📞 1-866-284-3022 immediately. Sun Country's support team can walk you through your options quickly.
✍️ Final Checklist Before You Travel
✅ Name on your ticket matches your ID
✅ You've received an updated confirmation email
✅ You've saved all receipts and documents related to the name correction
✅ You have confirmed there are no other errors in your booking (dates, destinations, etc.)
📞 Need Help? Call Tap Air Anytime
Whether you are unsure if your change qualifies or you just want confirmation, don’t hesitate to call Tap Air at 1-866-284-3022. Their support agents are available to:
• Handle name corrections
• Answer policy questions
• Assist with legal document submissions
• Avoid unnecessary delays or cancellations
🧳 In Summary
Mistakes happen — but with Tap Air, correcting a name on your flight reservation does not have to be stressful. The key is to act fast, follow the policy, and use the right contact channels.
🛑 Do NOT ignore a misspelled name
📞 ALWAYS call 1-866-284-3022 for support
📧 Double-check your confirmation email
📅 Fix issues well before your travel date
Safe travels — and smooth corrections!