From: Saravana Kannan saravanak@google.com

[ Upstream commit a26cc2934331b57b5a7164bff344f0a2ec245fc0 ]

After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle detection more robust"), fw_devlink prints an error when consumer devices don't have their fwnode set. This used to be ignored silently.

Set the fwnode mipi_dsi_device so fw_devlink can find them and properly track their dependencies.

This fixes errors like this: [ 0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device link with regulator-lcd-1v8 [ 0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device link with backlight-dsi

Reported-by: Martin Kepplinger martin.kepplinger@puri.sm Link: https://lore.kernel.org/lkml/2a8e407f4f18c9350f8629a2b5fa18673355b2ae.camel@... Fixes: 068a00233969 ("drm: Add MIPI DSI bus support") Signed-off-by: Saravana Kannan saravanak@google.com Tested-by: Martin Kepplinger martin.kepplinger@puri.sm Link: https://lore.kernel.org/r/20230310063910.2474472-1-saravanak@google.com Signed-off-by: Maxime Ripard maxime@cerno.tech Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_mipi_dsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index b942c69e9b489..17a96f1d9234c 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -221,7 +221,7 @@ mipi_dsi_device_register_full(struct mipi_dsi_host *host, return dsi; }

- dsi->dev.of_node = info->node; + device_set_node(&dsi->dev, of_fwnode_handle(info->node)); dsi->channel = info->channel; strlcpy(dsi->name, info->type, sizeof(dsi->name));

From: Roy Novich royno@nvidia.com

[ Upstream commit 162bd18eb55adf464a0fa2b4144b8d61c75ff7c2 ]

Add return value for dim_calc_stats. This is an indication for the caller if curr_stats was assigned by the function. Avoid using curr_stats uninitialized over {rdma/net}_dim, when no time delta between samples. Coverity reported this potential use of an uninitialized variable.

Fixes: 4c4dbb4a7363 ("net/mlx5e: Move dynamic interrupt coalescing code to include/linux") Fixes: cb3c7fd4f839 ("net/mlx5e: Support adaptive RX coalescing") Signed-off-by: Roy Novich royno@nvidia.com Reviewed-by: Aya Levin ayal@nvidia.com Reviewed-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Tariq Toukan tariqt@nvidia.com Reviewed-by: Leon Romanovsky leonro@nvidia.com Reviewed-by: Michal Kubiak michal.kubiak@intel.com Link: https://lore.kernel.org/r/20230507135743.138993-1-tariqt@nvidia.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/dim.h | 3 ++- lib/dim/dim.c | 5 +++-- lib/dim/net_dim.c | 3 ++- lib/dim/rdma_dim.c | 3 ++- 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/include/linux/dim.h b/include/linux/dim.h index 2571da63877c5..ad5f219ce2ff2 100644 --- a/include/linux/dim.h +++ b/include/linux/dim.h @@ -233,8 +233,9 @@ void dim_park_tired(struct dim *dim); * * Calculate the delta between two samples (in data rates). * Takes into consideration counter wrap-around. + * Returned boolean indicates whether curr_stats are reliable. */ -void dim_calc_stats(struct dim_sample *start, struct dim_sample *end, +bool dim_calc_stats(struct dim_sample *start, struct dim_sample *end, struct dim_stats *curr_stats);

/** diff --git a/lib/dim/dim.c b/lib/dim/dim.c index 38045d6d05381..e89aaf07bde50 100644 --- a/lib/dim/dim.c +++ b/lib/dim/dim.c @@ -54,7 +54,7 @@ void dim_park_tired(struct dim *dim) } EXPORT_SYMBOL(dim_park_tired);

-void dim_calc_stats(struct dim_sample *start, struct dim_sample *end, +bool dim_calc_stats(struct dim_sample *start, struct dim_sample *end, struct dim_stats *curr_stats) { /* u32 holds up to 71 minutes, should be enough */ @@ -66,7 +66,7 @@ void dim_calc_stats(struct dim_sample *start, struct dim_sample *end, start->comp_ctr);

if (!delta_us) - return; + return false;

curr_stats->ppms = DIV_ROUND_UP(npkts * USEC_PER_MSEC, delta_us); curr_stats->bpms = DIV_ROUND_UP(nbytes * USEC_PER_MSEC, delta_us); @@ -79,5 +79,6 @@ void dim_calc_stats(struct dim_sample *start, struct dim_sample *end, else curr_stats->cpe_ratio = 0;

+ return true; } EXPORT_SYMBOL(dim_calc_stats); diff --git a/lib/dim/net_dim.c b/lib/dim/net_dim.c index dae3b51ac3d9b..0e4f3a686f1de 100644 --- a/lib/dim/net_dim.c +++ b/lib/dim/net_dim.c @@ -227,7 +227,8 @@ void net_dim(struct dim *dim, struct dim_sample end_sample) dim->start_sample.event_ctr); if (nevents < DIM_NEVENTS) break; - dim_calc_stats(&dim->start_sample, &end_sample, &curr_stats); + if (!dim_calc_stats(&dim->start_sample, &end_sample, &curr_stats)) + break; if (net_dim_decision(&curr_stats, dim)) { dim->state = DIM_APPLY_NEW_PROFILE; schedule_work(&dim->work); diff --git a/lib/dim/rdma_dim.c b/lib/dim/rdma_dim.c index f7e26c7b4749f..d32c8b105adc9 100644 --- a/lib/dim/rdma_dim.c +++ b/lib/dim/rdma_dim.c @@ -88,7 +88,8 @@ void rdma_dim(struct dim *dim, u64 completions) nevents = curr_sample->event_ctr - dim->start_sample.event_ctr; if (nevents < DIM_NEVENTS) break; - dim_calc_stats(&dim->start_sample, curr_sample, &curr_stats); + if (!dim_calc_stats(&dim->start_sample, curr_sample, &curr_stats)) + break; if (rdma_dim_decision(&curr_stats, dim)) { dim->state = DIM_APPLY_NEW_PROFILE; schedule_work(&dim->work);

From: Florian Westphal fw@strlen.de

[ Upstream commit e72eeab542dbf4f544e389e64fa13b82a1b6d003 ]

I received a bug report (no reproducer so far) where we trip over

712 rcu_read_lock(); 713 ct_hook = rcu_dereference(nf_ct_hook); 714 BUG_ON(ct_hook == NULL); // here

In nf_conntrack_destroy().

First turn this BUG_ON into a WARN. I think it was triggered via enable_hooks=1 flag.

When this flag is turned on, the conntrack hooks are registered before nf_ct_hook pointer gets assigned. This opens a short window where packets enter the conntrack machinery, can have skb->_nfct set up and a subsequent kfree_skb might occur before nf_ct_hook is set.

Call nf_conntrack_init_end() to set nf_ct_hook before we register the pernet ops.

Fixes: ba3fbe663635 ("netfilter: nf_conntrack: provide modparam to always register conntrack hooks") Signed-off-by: Florian Westphal fw@strlen.de Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/core.c | 6 ++++-- net/netfilter/nf_conntrack_standalone.c | 3 ++- 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/core.c b/net/netfilter/core.c index 451b2df998ea7..c35f45afd394d 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -577,9 +577,11 @@ void nf_conntrack_destroy(struct nf_conntrack *nfct)

rcu_read_lock(); ct_hook = rcu_dereference(nf_ct_hook); - BUG_ON(ct_hook == NULL); - ct_hook->destroy(nfct); + if (ct_hook) + ct_hook->destroy(nfct); rcu_read_unlock(); + + WARN_ON(!ct_hook); } EXPORT_SYMBOL(nf_conntrack_destroy);

diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index 43c3c3be6defc..1e3dbed9d7840 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -1180,11 +1180,12 @@ static int __init nf_conntrack_standalone_init(void) nf_conntrack_htable_size_user = nf_conntrack_htable_size; #endif

+ nf_conntrack_init_end(); + ret = register_pernet_subsys(&nf_conntrack_net_ops); if (ret < 0) goto out_pernet;

- nf_conntrack_init_end(); return 0;

out_pernet:

From: Eric Dumazet edumazet@google.com

[ Upstream commit e05a5f510f26607616fecdd4ac136310c8bea56b ]

do_recvmmsg() can write to sk->sk_err from multiple threads.

As said before, many other points reading or writing sk_err need annotations.

Fixes: 34b88a68f26a ("net: Fix use after free in the recvmmsg exit path") Signed-off-by: Eric Dumazet edumazet@google.com Reported-by: syzbot syzkaller@googlegroups.com Reviewed-by: Kuniyuki Iwashima kuniyu@amazon.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/socket.c b/net/socket.c index 02feaf5bd84a3..9dd4c7ce8343a 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2723,7 +2723,7 @@ static int do_recvmmsg(int fd, struct mmsghdr __user *mmsg, * error to return on the next call or if the * app asks about it using getsockopt(SO_ERROR). */ - sock->sk->sk_err = -err; + WRITE_ONCE(sock->sk->sk_err, -err); } out_put: fput_light(sock->file, fput_needed);

From: Eric Dumazet edumazet@google.com

[ Upstream commit 4063384ef762cc5946fc7a3f89879e76c6ec51e2 ]

Before blamed commit, pskb_may_pull() was used instead of skb_header_pointer() in __vlan_get_protocol() and friends.

Few callers depended on skb->head being populated with MAC header, syzbot caught one of them (skb_mac_gso_segment())

Add vlan_get_protocol_and_depth() to make the intent clearer and use it where sensible.

This is a more generic fix than commit e9d3f80935b6 ("net/af_packet: make sure to pull mac header") which was dealing with a similar issue.

kernel BUG at include/linux/skbuff.h:2655 ! invalid opcode: 0000 [#1] SMP KASAN CPU: 0 PID: 1441 Comm: syz-executor199 Not tainted 6.1.24-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:__skb_pull include/linux/skbuff.h:2655 [inline] RIP: 0010:skb_mac_gso_segment+0x68f/0x6a0 net/core/gro.c:136 Code: fd 48 8b 5c 24 10 44 89 6b 70 48 c7 c7 c0 ae 0d 86 44 89 e6 e8 a1 91 d0 00 48 c7 c7 00 af 0d 86 48 89 de 31 d2 e8 d1 4a e9 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 RSP: 0018:ffffc90001bd7520 EFLAGS: 00010286 RAX: ffffffff8469736a RBX: ffff88810f31dac0 RCX: ffff888115a18b00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90001bd75e8 R08: ffffffff84697183 R09: fffff5200037adf9 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000012 R13: 000000000000fee5 R14: 0000000000005865 R15: 000000000000fed7 FS: 000055555633f300(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000116fea000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> [<ffffffff847018dd>] __skb_gso_segment+0x32d/0x4c0 net/core/dev.c:3419 [<ffffffff8470398a>] skb_gso_segment include/linux/netdevice.h:4819 [inline] [<ffffffff8470398a>] validate_xmit_skb+0x3aa/0xee0 net/core/dev.c:3725 [<ffffffff84707042>] __dev_queue_xmit+0x1332/0x3300 net/core/dev.c:4313 [<ffffffff851a9ec7>] dev_queue_xmit+0x17/0x20 include/linux/netdevice.h:3029 [<ffffffff851b4a82>] packet_snd net/packet/af_packet.c:3111 [inline] [<ffffffff851b4a82>] packet_sendmsg+0x49d2/0x6470 net/packet/af_packet.c:3142 [<ffffffff84669a12>] sock_sendmsg_nosec net/socket.c:716 [inline] [<ffffffff84669a12>] sock_sendmsg net/socket.c:736 [inline] [<ffffffff84669a12>] __sys_sendto+0x472/0x5f0 net/socket.c:2139 [<ffffffff84669c75>] __do_sys_sendto net/socket.c:2151 [inline] [<ffffffff84669c75>] __se_sys_sendto net/socket.c:2147 [inline] [<ffffffff84669c75>] __x64_sys_sendto+0xe5/0x100 net/socket.c:2147 [<ffffffff8551d40f>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff8551d40f>] do_syscall_64+0x2f/0x50 arch/x86/entry/common.c:80 [<ffffffff85600087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: 469aceddfa3e ("vlan: consolidate VLAN parsing code and limit max parsing depth") Reported-by: syzbot syzkaller@googlegroups.com Signed-off-by: Eric Dumazet edumazet@google.com Cc: Toke Høiland-Jørgensen toke@redhat.com Cc: Willem de Bruijn willemb@google.com Reviewed-by: Simon Horman simon.horman@corigine.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/tap.c | 4 ++-- include/linux/if_vlan.h | 17 +++++++++++++++++ net/bridge/br_forward.c | 2 +- net/core/dev.c | 2 +- net/packet/af_packet.c | 6 ++---- 5 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/net/tap.c b/drivers/net/tap.c index ffdf0e165930c..574c17aa4b09a 100644 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@ -716,7 +716,7 @@ static ssize_t tap_get_user(struct tap_queue *q, void *msg_control,

/* Move network header to the right position for VLAN tagged packets */ if (eth_type_vlan(skb->protocol) && - __vlan_get_protocol(skb, skb->protocol, &depth) != 0) + vlan_get_protocol_and_depth(skb, skb->protocol, &depth) != 0) skb_set_network_header(skb, depth);

rcu_read_lock(); @@ -1177,7 +1177,7 @@ static int tap_get_user_xdp(struct tap_queue *q, struct xdp_buff *xdp)

/* Move network header to the right position for VLAN tagged packets */ if (eth_type_vlan(skb->protocol) && - __vlan_get_protocol(skb, skb->protocol, &depth) != 0) + vlan_get_protocol_and_depth(skb, skb->protocol, &depth) != 0) skb_set_network_header(skb, depth);

rcu_read_lock(); diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 41a518336673b..4e7e72f3da5bd 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -626,6 +626,23 @@ static inline __be16 vlan_get_protocol(const struct sk_buff *skb) return __vlan_get_protocol(skb, skb->protocol, NULL); }

+/* This version of __vlan_get_protocol() also pulls mac header in skb->head */ +static inline __be16 vlan_get_protocol_and_depth(struct sk_buff *skb, + __be16 type, int *depth) +{ + int maclen; + + type = __vlan_get_protocol(skb, type, &maclen); + + if (type) { + if (!pskb_may_pull(skb, maclen)) + type = 0; + else if (depth) + *depth = maclen; + } + return type; +} + /* A getter for the SKB protocol field which will handle VLAN tags consistently * whether VLAN acceleration is enabled or not. */ diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 86637000f275d..a92d5359b5c0c 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -43,7 +43,7 @@ int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb skb->protocol == htons(ETH_P_8021AD))) { int depth;

- if (!__vlan_get_protocol(skb, skb->protocol, &depth)) + if (!vlan_get_protocol_and_depth(skb, skb->protocol, &depth)) goto drop;

skb_set_network_header(skb, depth); diff --git a/net/core/dev.c b/net/core/dev.c index 1a4e20c4ba053..c5561c88a8364 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2936,7 +2936,7 @@ __be16 skb_network_protocol(struct sk_buff *skb, int *depth) type = eth->h_proto; }

- return __vlan_get_protocol(skb, type, depth); + return vlan_get_protocol_and_depth(skb, type, depth); }

/** diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 109a848aca151..7a940f2f30671 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1876,10 +1876,8 @@ static void packet_parse_headers(struct sk_buff *skb, struct socket *sock) /* Move network header to the right position for VLAN tagged packets */ if (likely(skb->dev->type == ARPHRD_ETHER) && eth_type_vlan(skb->protocol) && - __vlan_get_protocol(skb, skb->protocol, &depth) != 0) { - if (pskb_may_pull(skb, depth)) - skb_set_network_header(skb, depth); - } + vlan_get_protocol_and_depth(skb, skb->protocol, &depth) != 0) + skb_set_network_header(skb, depth);

skb_probe_transport_header(skb); }

From: Eric Dumazet edumazet@google.com

[ Upstream commit 5bca1d081f44c9443e61841842ce4e9179d327b6 ]

datagram_poll() runs locklessly, we should add READ_ONCE() annotations while reading sk->sk_err, sk->sk_shutdown and sk->sk_state.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet edumazet@google.com Reviewed-by: Kuniyuki Iwashima kuniyu@amazon.com Link: https://lore.kernel.org/r/20230509173131.3263780-1-edumazet@google.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/core/datagram.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/net/core/datagram.c b/net/core/datagram.c index b0488f30f2c4e..a5fc44448d600 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -778,18 +778,21 @@ __poll_t datagram_poll(struct file *file, struct socket *sock, { struct sock *sk = sock->sk; __poll_t mask; + u8 shutdown;

sock_poll_wait(file, sock, wait); mask = 0;

/* exceptional events? */ - if (sk->sk_err || !skb_queue_empty_lockless(&sk->sk_error_queue)) + if (READ_ONCE(sk->sk_err) || + !skb_queue_empty_lockless(&sk->sk_error_queue)) mask |= EPOLLERR | (sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? EPOLLPRI : 0);

- if (sk->sk_shutdown & RCV_SHUTDOWN) + shutdown = READ_ONCE(sk->sk_shutdown); + if (shutdown & RCV_SHUTDOWN) mask |= EPOLLRDHUP | EPOLLIN | EPOLLRDNORM; - if (sk->sk_shutdown == SHUTDOWN_MASK) + if (shutdown == SHUTDOWN_MASK) mask |= EPOLLHUP;

/* readable? */ @@ -798,10 +801,12 @@ __poll_t datagram_poll(struct file *file, struct socket *sock,

/* Connection-based need to check for termination and startup */ if (connection_based(sk)) { - if (sk->sk_state == TCP_CLOSE) + int state = READ_ONCE(sk->sk_state); + + if (state == TCP_CLOSE) mask |= EPOLLHUP; /* connection hasn't started yet? */ - if (sk->sk_state == TCP_SYN_SENT) + if (state == TCP_SYN_SENT) return mask; }

From: Kuniyuki Iwashima kuniyu@amazon.com

[ Upstream commit e1d09c2c2f5793474556b60f83900e088d0d366d ]

KCSAN found a data race around sk->sk_shutdown where unix_release_sock() and unix_shutdown() update it under unix_state_lock(), OTOH unix_poll() and unix_dgram_poll() read it locklessly.

We need to annotate the writes and reads with WRITE_ONCE() and READ_ONCE().

BUG: KCSAN: data-race in unix_poll / unix_release_sock

write to 0xffff88800d0f8aec of 1 bytes by task 264 on cpu 0: unix_release_sock+0x75c/0x910 net/unix/af_unix.c:631 unix_release+0x59/0x80 net/unix/af_unix.c:1042 __sock_release+0x7d/0x170 net/socket.c:653 sock_close+0x19/0x30 net/socket.c:1397 __fput+0x179/0x5e0 fs/file_table.c:321 ____fput+0x15/0x20 fs/file_table.c:349 task_work_run+0x116/0x1a0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x174/0x180 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:297 do_syscall_64+0x4b/0x90 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x72/0xdc

read to 0xffff88800d0f8aec of 1 bytes by task 222 on cpu 1: unix_poll+0xa3/0x2a0 net/unix/af_unix.c:3170 sock_poll+0xcf/0x2b0 net/socket.c:1385 vfs_poll include/linux/poll.h:88 [inline] ep_item_poll.isra.0+0x78/0xc0 fs/eventpoll.c:855 ep_send_events fs/eventpoll.c:1694 [inline] ep_poll fs/eventpoll.c:1823 [inline] do_epoll_wait+0x6c4/0xea0 fs/eventpoll.c:2258 __do_sys_epoll_wait fs/eventpoll.c:2270 [inline] __se_sys_epoll_wait fs/eventpoll.c:2265 [inline] __x64_sys_epoll_wait+0xcc/0x190 fs/eventpoll.c:2265 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x72/0xdc

value changed: 0x00 -> 0x03

Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 222 Comm: dbus-broker Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014

Fixes: 3c73419c09a5 ("af_unix: fix 'poll for write'/ connected DGRAM sockets") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot syzkaller@googlegroups.com Signed-off-by: Kuniyuki Iwashima kuniyu@amazon.com Reviewed-by: Eric Dumazet edumazet@google.com Reviewed-by: Michal Kubiak michal.kubiak@intel.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/unix/af_unix.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 35a941684f16e..01fd049da104a 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -531,7 +531,7 @@ static void unix_release_sock(struct sock *sk, int embrion) /* Clear state */ unix_state_lock(sk); sock_orphan(sk); - sk->sk_shutdown = SHUTDOWN_MASK; + WRITE_ONCE(sk->sk_shutdown, SHUTDOWN_MASK); path = u->path; u->path.dentry = NULL; u->path.mnt = NULL; @@ -549,7 +549,7 @@ static void unix_release_sock(struct sock *sk, int embrion) if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) { unix_state_lock(skpair); /* No more writes */ - skpair->sk_shutdown = SHUTDOWN_MASK; + WRITE_ONCE(skpair->sk_shutdown, SHUTDOWN_MASK); if (!skb_queue_empty(&sk->sk_receive_queue) || embrion) skpair->sk_err = ECONNRESET; unix_state_unlock(skpair); @@ -2546,7 +2546,7 @@ static int unix_shutdown(struct socket *sock, int mode) ++mode;

unix_state_lock(sk); - sk->sk_shutdown |= mode; + WRITE_ONCE(sk->sk_shutdown, sk->sk_shutdown | mode); other = unix_peer(sk); if (other) sock_hold(other); @@ -2563,7 +2563,7 @@ static int unix_shutdown(struct socket *sock, int mode) if (mode&SEND_SHUTDOWN) peer_mode |= RCV_SHUTDOWN; unix_state_lock(other); - other->sk_shutdown |= peer_mode; + WRITE_ONCE(other->sk_shutdown, other->sk_shutdown | peer_mode); unix_state_unlock(other); other->sk_state_change(other); if (peer_mode == SHUTDOWN_MASK) @@ -2682,16 +2682,18 @@ static __poll_t unix_poll(struct file *file, struct socket *sock, poll_table *wa { struct sock *sk = sock->sk; __poll_t mask; + u8 shutdown;

sock_poll_wait(file, sock, wait); mask = 0; + shutdown = READ_ONCE(sk->sk_shutdown);

/* exceptional events? */ if (sk->sk_err) mask |= EPOLLERR; - if (sk->sk_shutdown == SHUTDOWN_MASK) + if (shutdown == SHUTDOWN_MASK) mask |= EPOLLHUP; - if (sk->sk_shutdown & RCV_SHUTDOWN) + if (shutdown & RCV_SHUTDOWN) mask |= EPOLLRDHUP | EPOLLIN | EPOLLRDNORM;

/* readable? */ @@ -2719,18 +2721,20 @@ static __poll_t unix_dgram_poll(struct file *file, struct socket *sock, struct sock *sk = sock->sk, *other; unsigned int writable; __poll_t mask; + u8 shutdown;

sock_poll_wait(file, sock, wait); mask = 0; + shutdown = READ_ONCE(sk->sk_shutdown);

/* exceptional events? */ if (sk->sk_err || !skb_queue_empty_lockless(&sk->sk_error_queue)) mask |= EPOLLERR | (sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? EPOLLPRI : 0);

- if (sk->sk_shutdown & RCV_SHUTDOWN) + if (shutdown & RCV_SHUTDOWN) mask |= EPOLLRDHUP | EPOLLIN | EPOLLRDNORM; - if (sk->sk_shutdown == SHUTDOWN_MASK) + if (shutdown == SHUTDOWN_MASK) mask |= EPOLLHUP;

/* readable? */

From: Rodrigo Siqueira Rodrigo.Siqueira@amd.com

[ Upstream commit 7222f5841ff49709ca666b05ff336776e0664a20 ]

[Why & How] DC now uses a new commit sequence which is more robust since it addresses cases where we need to reorganize pipes based on planes and other parameters. As a result, this new commit sequence reset the DC state by cleaning plane states and re-creating them accordingly with the need. For this reason, the dce_transform_set_pixel_storage_depth can be invoked after a plane state is destroyed and before its re-creation. In this situation and on DCE devices, DC will hit a condition that will trigger a dmesg log that looks like this:

Console: switching to colour frame buffer device 240x67 ------------[ cut here ]------------ [..] Hardware name: System manufacturer System Product Name/PRIME X370-PRO, BIOS 5603 07/28/2020 RIP: 0010:dce_transform_set_pixel_storage_depth+0x3f8/0x480 [amdgpu] [..] RSP: 0018:ffffc9000202b850 EFLAGS: 00010293 RAX: ffffffffa081d100 RBX: ffff888110790000 RCX: 000000000000000c RDX: ffff888100bedbf8 RSI: 0000000000001a50 RDI: ffff88810463c900 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000007 R10: 0000000000000001 R11: 0000000000000f00 R12: ffff88810f500010 R13: ffff888100bedbf8 R14: ffff88810f515688 R15: 0000000000000000 FS: 00007ff0159249c0(0000) GS:ffff88840e940000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff01528e550 CR3: 0000000002a10000 CR4: 00000000003506e0 Call Trace: <TASK> ? dm_write_reg_func+0x21/0x80 [amdgpu 340dadd3f7c8cf4be11cf0bdc850245e99abe0e8] dc_stream_set_dither_option+0xfb/0x130 [amdgpu 340dadd3f7c8cf4be11cf0bdc850245e99abe0e8] amdgpu_dm_crtc_configure_crc_source+0x10b/0x190 [amdgpu 340dadd3f7c8cf4be11cf0bdc850245e99abe0e8] amdgpu_dm_atomic_commit_tail+0x20a8/0x2a90 [amdgpu 340dadd3f7c8cf4be11cf0bdc850245e99abe0e8] ? free_unref_page_commit+0x98/0x170 ? free_unref_page+0xcc/0x150 commit_tail+0x94/0x120 drm_atomic_helper_commit+0x10f/0x140 drm_atomic_commit+0x94/0xc0 ? drm_plane_get_damage_clips.cold+0x1c/0x1c drm_client_modeset_commit_atomic+0x203/0x250 drm_client_modeset_commit_locked+0x56/0x150 drm_client_modeset_commit+0x21/0x40 drm_fb_helper_lastclose+0x42/0x70 amdgpu_driver_lastclose_kms+0xa/0x10 [amdgpu 340dadd3f7c8cf4be11cf0bdc850245e99abe0e8] drm_release+0xda/0x110 __fput+0x89/0x240 task_work_run+0x5c/0x90 do_exit+0x333/0xae0 do_group_exit+0x2d/0x90 __x64_sys_exit_group+0x14/0x20 do_syscall_64+0x5b/0x80 ? exit_to_user_mode_prepare+0x1e/0x140 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff016ceaca1 Code: Unable to access opcode bytes at RIP 0x7ff016ceac77. RSP: 002b:00007ffe7a2357e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ff016e15a00 RCX: 00007ff016ceaca1 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffff78 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff016e15a00 R13: 0000000000000000 R14: 00007ff016e1aee8 R15: 00007ff016e1af00 </TASK>

Since this issue only happens in a transition state on DC, this commit replace BREAK_TO_DEBUGGER with DC_LOG_DC.

Reviewed-by: Harry Wentland Harry.Wentland@amd.com Acked-by: Qingqing Zhuo qingqing.zhuo@amd.com Signed-off-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/dce/dce_transform.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c index 6fd57cfb112f5..96fdc18ecb3bf 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c @@ -778,7 +778,7 @@ static void dce_transform_set_pixel_storage_depth( color_depth = COLOR_DEPTH_101010; pixel_depth = 0; expan_mode = 1; - BREAK_TO_DEBUGGER(); + DC_LOG_DC("The pixel depth %d is not valid, set COLOR_DEPTH_101010 instead.", depth); break; }

@@ -792,8 +792,7 @@ static void dce_transform_set_pixel_storage_depth( if (!(xfm_dce->lb_pixel_depth_supported & depth)) { /*we should use unsupported capabilities * unless it is required by w/a*/ - DC_LOG_WARNING("%s: Capability not supported", - __func__); + DC_LOG_DC("%s: Capability not supported", __func__); } }

From: Zheng Wang zyytlz.wz@163.com

[ Upstream commit 63264422785021704c39b38f65a78ab9e4a186d7 ]

In r592_probe, dev->detect_timer was bound with r592_detect_timer. In r592_irq function, the timer function will be invoked by mod_timer.

If we remove the module which will call hantro_release to make cleanup, there may be a unfinished work. The possible sequence is as follows, which will cause a typical UAF bug.

Fix it by canceling the work before cleanup in r592_remove.

CPU0 CPU1

|r592_detect_timer r592_remove | memstick_free_host| put_device; | kfree(host); | | | queue_work | &host->media_checker //use

Signed-off-by: Zheng Wang zyytlz.wz@163.com Link: https://lore.kernel.org/r/20230307164338.1246287-1-zyytlz.wz@163.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/memstick/host/r592.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c index eaa2a94d18be4..dd06c18495eb6 100644 --- a/drivers/memstick/host/r592.c +++ b/drivers/memstick/host/r592.c @@ -828,7 +828,7 @@ static void r592_remove(struct pci_dev *pdev) /* Stop the processing thread. That ensures that we won't take any more requests */ kthread_stop(dev->io_thread); - + del_timer_sync(&dev->detect_timer); r592_enable_device(dev, false);

while (!error && dev->req) {

From: Armin Wolf W_Armin@gmx.de

[ Upstream commit e5b492c6bb900fcf9722e05f4a10924410e170c1 ]

When removing custom query handlers, the handler might still be used inside the EC query workqueue, causing a kernel oops if the module holding the callback function was already unloaded.

Fix this by flushing the EC query workqueue when removing custom query handlers.

Tested on a Acer Travelmate 4002WLMi

Signed-off-by: Armin Wolf W_Armin@gmx.de Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/ec.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index defc5796b5084..c7baccd47b89f 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1118,6 +1118,7 @@ static void acpi_ec_remove_query_handlers(struct acpi_ec *ec, void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) { acpi_ec_remove_query_handlers(ec, false, query_bit); + flush_workqueue(ec_query_wq); } EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);

From: Tamir Duberstein tamird@google.com

[ Upstream commit 05bb0167c80b8f93c6a4e0451b7da9b96db990c2 ]

ACPICA commit 770653e3ba67c30a629ca7d12e352d83c2541b1e

Before this change we see the following UBSAN stack trace in Fuchsia:

#0 0x000021e4213b3302 in acpi_ds_init_aml_walk(struct acpi_walk_state*, union acpi_parse_object*, struct acpi_namespace_node*, u8*, u32, struct acpi_evaluate_info*, u8) ../../third_party/acpica/source/components/dispatcher/dswstate.c:682 <platform-bus-x86.so>+0x233302 #1.2 0x000020d0f660777f in ubsan_get_stack_trace() compiler-rt/lib/ubsan/ubsan_diag.cpp:41 <libclang_rt.asan.so>+0x3d77f #1.1 0x000020d0f660777f in maybe_print_stack_trace() compiler-rt/lib/ubsan/ubsan_diag.cpp:51 <libclang_rt.asan.so>+0x3d77f #1 0x000020d0f660777f in ~scoped_report() compiler-rt/lib/ubsan/ubsan_diag.cpp:387 <libclang_rt.asan.so>+0x3d77f #2 0x000020d0f660b96d in handlepointer_overflow_impl() compiler-rt/lib/ubsan/ubsan_handlers.cpp:809 <libclang_rt.asan.so>+0x4196d #3 0x000020d0f660b50d in compiler-rt/lib/ubsan/ubsan_handlers.cpp:815 <libclang_rt.asan.so>+0x4150d #4 0x000021e4213b3302 in acpi_ds_init_aml_walk(struct acpi_walk_state*, union acpi_parse_object*, struct acpi_namespace_node*, u8*, u32, struct acpi_evaluate_info*, u8) ../../third_party/acpica/source/components/dispatcher/dswstate.c:682 <platform-bus-x86.so>+0x233302 #5 0x000021e4213e2369 in acpi_ds_call_control_method(struct acpi_thread_state*, struct acpi_walk_state*, union acpi_parse_object*) ../../third_party/acpica/source/components/dispatcher/dsmethod.c:605 <platform-bus-x86.so>+0x262369 #6 0x000021e421437fac in acpi_ps_parse_aml(struct acpi_walk_state*) ../../third_party/acpica/source/components/parser/psparse.c:550 <platform-bus-x86.so>+0x2b7fac #7 0x000021e4214464d2 in acpi_ps_execute_method(struct acpi_evaluate_info*) ../../third_party/acpica/source/components/parser/psxface.c:244 <platform-bus-x86.so>+0x2c64d2 #8 0x000021e4213aa052 in acpi_ns_evaluate(struct acpi_evaluate_info*) ../../third_party/acpica/source/components/namespace/nseval.c:250 <platform-bus-x86.so>+0x22a052 #9 0x000021e421413dd8 in acpi_ns_init_one_device(acpi_handle, u32, void*, void**) ../../third_party/acpica/source/components/namespace/nsinit.c:735 <platform-bus-x86.so>+0x293dd8 #10 0x000021e421429e98 in acpi_ns_walk_namespace(acpi_object_type, acpi_handle, u32, u32, acpi_walk_callback, acpi_walk_callback, void*, void**) ../../third_party/acpica/source/components/namespace/nswalk.c:298 <platform-bus-x86.so>+0x2a9e98 #11 0x000021e4214131ac in acpi_ns_initialize_devices(u32) ../../third_party/acpica/source/components/namespace/nsinit.c:268 <platform-bus-x86.so>+0x2931ac #12 0x000021e42147c40d in acpi_initialize_objects(u32) ../../third_party/acpica/source/components/utilities/utxfinit.c:304 <platform-bus-x86.so>+0x2fc40d #13 0x000021e42126d603 in acpi::acpi_impl::initialize_acpi(acpi::acpi_impl*) ../../src/devices/board/lib/acpi/acpi-impl.cc:224 <platform-bus-x86.so>+0xed603

Add a simple check that avoids incrementing a pointer by zero, but otherwise behaves as before. Note that our findings are against ACPICA 20221020, but the same code exists on master.

Link: https://github.com/acpica/acpica/commit/770653e3 Signed-off-by: Bob Moore robert.moore@intel.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/acpica/dswstate.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c index de79f835a3737..7979d52dfbc96 100644 --- a/drivers/acpi/acpica/dswstate.c +++ b/drivers/acpi/acpica/dswstate.c @@ -576,9 +576,14 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ds_init_aml_walk);

walk_state->parser_state.aml = - walk_state->parser_state.aml_start = aml_start; - walk_state->parser_state.aml_end = - walk_state->parser_state.pkg_end = aml_start + aml_length; + walk_state->parser_state.aml_start = + walk_state->parser_state.aml_end = + walk_state->parser_state.pkg_end = aml_start; + /* Avoid undefined behavior: applying zero offset to null pointer */ + if (aml_length != 0) { + walk_state->parser_state.aml_end += aml_length; + walk_state->parser_state.pkg_end += aml_length; + }

/* The next_op of the next_walk will be the beginning of the method */

From: Hector Martin marcan@marcan.st

[ Upstream commit 89b89e52153fda2733562776c7c9d9d3ebf8dd6d ]

Apparently the hex passphrase mechanism does not work on newer chips/firmware (e.g. BCM4387). It seems there was a simple way of passing it in binary all along, so use that and avoid the hexification.

OpenBSD has been doing it like this from the beginning, so this should work on all chips.

Also clear the structure before setting the PMK. This was leaking uninitialized stack contents to the device.

Reviewed-by: Linus Walleij linus.walleij@linaro.org Reviewed-by: Arend van Spriel arend.vanspriel@broadcom.com Signed-off-by: Hector Martin marcan@marcan.st Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20230214092423.15175-6-marcan@marcan.st Signed-off-by: Sasha Levin sashal@kernel.org --- .../wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 5bfff309f5474..b7ceea0b3204d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -1269,13 +1269,14 @@ static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len) { struct brcmf_pub *drvr = ifp->drvr; struct brcmf_wsec_pmk_le pmk; - int i, err; + int err; + + memset(&pmk, 0, sizeof(pmk));

- /* convert to firmware key format */ - pmk.key_len = cpu_to_le16(pmk_len << 1); - pmk.flags = cpu_to_le16(BRCMF_WSEC_PASSPHRASE); - for (i = 0; i < pmk_len; i++) - snprintf(&pmk.key[2 * i], 3, "%02x", pmk_data[i]); + /* pass pmk directly */ + pmk.key_len = cpu_to_le16(pmk_len); + pmk.flags = cpu_to_le16(0); + memcpy(pmk.key, pmk_data, pmk_len);

/* store psk in firmware */ err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_WSEC_PMK,

From: Justin Tee justin.tee@broadcom.com

[ Upstream commit c6087b82a9146826564a55c5ca0164cac40348f5 ]

A static code analysis tool flagged the possibility of buffer overflow when using copy_from_user() for a debugfs entry.

Currently, it is possible that copy_from_user() copies more bytes than what would fit in the mybuf char array. Add a min() restriction check between sizeof(mybuf) - 1 and nbytes passed from the userspace buffer to protect against buffer overflow.

Link: https://lore.kernel.org/r/20230301231626.9621-2-justintee8345@gmail.com Signed-off-by: Justin Tee justin.tee@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/lpfc/lpfc_debugfs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 69551132f304c..291fccf02d453 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2046,6 +2046,7 @@ lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, char mybuf[64]; char *pbuf; int i; + size_t bsize;

/* Protect copy from user */ if (!access_ok(buf, nbytes)) @@ -2053,7 +2054,9 @@ lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf,

memset(mybuf, 0, sizeof(mybuf));

- if (copy_from_user(mybuf, buf, nbytes)) + bsize = min(nbytes, (sizeof(mybuf) - 1)); + + if (copy_from_user(mybuf, buf, bsize)) return -EFAULT; pbuf = &mybuf[0];

@@ -2074,7 +2077,7 @@ lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, qp->lock_conflict.wq_access = 0; } } - return nbytes; + return bsize; } #endif

From: Nick Child nnac123@linux.ibm.com

[ Upstream commit 5dd0dfd55baec0742ba8f5625a0dd064aca7db16 ]

When setting the XPS value of a TX queue, warn the user once if the index of the queue is greater than the number of allocated TX queues.

Previously, this scenario went uncaught. In the best case, it resulted in unnecessary allocations. In the worst case, it resulted in out-of-bounds memory references through calls to `netdev_get_tx_queue( dev, index)`. Therefore, it is important to inform the user but not worth returning an error and risk downing the netdevice.

Signed-off-by: Nick Child nnac123@linux.ibm.com Reviewed-by: Piotr Raczynski piotr.raczynski@intel.com Link: https://lore.kernel.org/r/20230321150725.127229-1-nnac123@linux.ibm.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/core/dev.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c index c5561c88a8364..0cc0809628b08 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2244,6 +2244,8 @@ int __netif_set_xps_queue(struct net_device *dev, const unsigned long *mask, bool active = false; unsigned int nr_ids;

+ WARN_ON_ONCE(index >= dev->num_tx_queues); + if (dev->num_tc) { /* Do not allow XPS on subordinate device directly */ num_tc = dev->num_tc;

From: Eli Cohen elic@nvidia.com

[ Upstream commit 4e0473f1060aa49621d40a113afde24818101d37 ]

When calling irq_set_affinity_notifier() with NULL at the notify argument, it will cause freeing of the glue pointer in the corresponding array entry but will leave the pointer in the array. A subsequent call to free_irq_cpu_rmap() will try to free this entry again leading to possible use after free.

Fix that by setting NULL to the array entry and checking that we have non-zero at the array entry when iterating over the array in free_irq_cpu_rmap().

The current code does not suffer from this since there are no cases where irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the notify arg) is called, followed by a call to free_irq_cpu_rmap() so we don't hit and issue. Subsequent patches in this series excersize this flow, hence the required fix.

Cc: Thomas Gleixner tglx@linutronix.de Signed-off-by: Eli Cohen elic@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Reviewed-by: Jacob Keller jacob.e.keller@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- lib/cpu_rmap.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/cpu_rmap.c b/lib/cpu_rmap.c index 075f3788bbe4d..920403fa5b0de 100644 --- a/lib/cpu_rmap.c +++ b/lib/cpu_rmap.c @@ -232,7 +232,8 @@ void free_irq_cpu_rmap(struct cpu_rmap *rmap)

for (index = 0; index < rmap->used; index++) { glue = rmap->obj[index]; - irq_set_affinity_notifier(glue->notify.irq, NULL); + if (glue) + irq_set_affinity_notifier(glue->notify.irq, NULL); }

cpu_rmap_put(rmap); @@ -268,6 +269,7 @@ static void irq_cpu_rmap_release(struct kref *ref) container_of(ref, struct irq_glue, notify.kref);

cpu_rmap_put(glue->rmap); + glue->rmap->obj[glue->index] = NULL; kfree(glue); }

@@ -297,6 +299,7 @@ int irq_cpu_rmap_add(struct cpu_rmap *rmap, int irq) rc = irq_set_affinity_notifier(irq, &glue->notify); if (rc) { cpu_rmap_put(glue->rmap); + rmap->obj[glue->index] = NULL; kfree(glue); } return rc;

From: Andreas Gruenbacher agruenba@redhat.com

[ Upstream commit cfcdb5bad34f600aed7613c3c1a5e618111f77b7 ]

The maximum allowed height of an inode's metadata tree depends on the filesystem block size; it is lower for bigger-block filesystems. When reading in an inode, make sure that the height doesn't exceed the maximum allowed height.

Arrays like sd_heightsize are sized to be big enough for any filesystem block size; they will often be slightly bigger than what's needed for a specific filesystem.

Reported-by: syzbot+45d4691b1ed3c48eba05@syzkaller.appspotmail.com Signed-off-by: Andreas Gruenbacher agruenba@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/gfs2/glops.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 69106a1545fad..092223a8b1201 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -362,6 +362,7 @@ static int inode_go_demote_ok(const struct gfs2_glock *gl)

static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) { + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); const struct gfs2_dinode *str = buf; struct timespec64 atime; u16 height, depth; @@ -401,7 +402,7 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) /* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */ gfs2_set_inode_flags(&ip->i_inode); height = be16_to_cpu(str->di_height); - if (unlikely(height > GFS2_MAX_META_HEIGHT)) + if (unlikely(height > sdp->sd_max_height)) goto corrupt; ip->i_height = (u8)height;

From: Ojaswin Mujoo ojaswin@linux.ibm.com

[ Upstream commit 93cdf49f6eca5e23f6546b8f28457b2e6a6961d9 ]

When the length of best extent found is less than the length of goal extent we need to make sure that the best extent atleast covers the start of the original request. This is done by adjusting the ac_b_ex.fe_logical (logical start) of the extent.

While doing so, the current logic sometimes results in the best extent's logical range overflowing the goal extent. Since this best extent is later added to the inode preallocation list, we have a possibility of introducing overlapping preallocations. This is discussed in detail here [1].

As per Jan's suggestion, to fix this, replace the existing logic with the below logic for adjusting best extent as it keeps fragmentation in check while ensuring logical range of best extent doesn't overflow out of goal extent:

1. Check if best extent can be kept at end of goal range and still cover original start. 2. Else, check if best extent can be kept at start of goal range and still cover original start. 3. Else, keep the best extent at start of original request.

Also, add a few extra BUG_ONs that might help catch errors faster.

[1] https://lore.kernel.org/r/Y+OGkVvzPN0RMv0O@li-bb2b2a4c-3307-11b2-a85c-8fa5c3...

Suggested-by: Jan Kara jack@suse.cz Signed-off-by: Ojaswin Mujoo ojaswin@linux.ibm.com Reviewed-by: Ritesh Harjani (IBM) ritesh.list@gmail.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/f96aca6d415b36d1f90db86c1a8cd7e2e9d7ab0e.167973181... Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext4/mballoc.c | 49 ++++++++++++++++++++++++++++++----------------- 1 file changed, 31 insertions(+), 18 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index bdab18942e302..92c37fbbabc15 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3378,6 +3378,7 @@ static void ext4_mb_use_inode_pa(struct ext4_allocation_context *ac, BUG_ON(start < pa->pa_pstart); BUG_ON(end > pa->pa_pstart + EXT4_C2B(sbi, pa->pa_len)); BUG_ON(pa->pa_free < len); + BUG_ON(ac->ac_b_ex.fe_len <= 0); pa->pa_free -= len;

mb_debug(1, "use %llu/%u from inode pa %p\n", start, len, pa); @@ -3682,10 +3683,8 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac) return -ENOMEM;

if (ac->ac_b_ex.fe_len < ac->ac_g_ex.fe_len) { - int winl; - int wins; - int win; - int offs; + int new_bex_start; + int new_bex_end;

/* we can't allocate as much as normalizer wants. * so, found space must get proper lstart @@ -3693,26 +3692,40 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac) BUG_ON(ac->ac_g_ex.fe_logical > ac->ac_o_ex.fe_logical); BUG_ON(ac->ac_g_ex.fe_len < ac->ac_o_ex.fe_len);

- /* we're limited by original request in that - * logical block must be covered any way - * winl is window we can move our chunk within */ - winl = ac->ac_o_ex.fe_logical - ac->ac_g_ex.fe_logical; + /* + * Use the below logic for adjusting best extent as it keeps + * fragmentation in check while ensuring logical range of best + * extent doesn't overflow out of goal extent: + * + * 1. Check if best ex can be kept at end of goal and still + * cover original start + * 2. Else, check if best ex can be kept at start of goal and + * still cover original start + * 3. Else, keep the best ex at start of original request. + */ + new_bex_end = ac->ac_g_ex.fe_logical + + EXT4_C2B(sbi, ac->ac_g_ex.fe_len); + new_bex_start = new_bex_end - EXT4_C2B(sbi, ac->ac_b_ex.fe_len); + if (ac->ac_o_ex.fe_logical >= new_bex_start) + goto adjust_bex;

- /* also, we should cover whole original request */ - wins = EXT4_C2B(sbi, ac->ac_b_ex.fe_len - ac->ac_o_ex.fe_len); + new_bex_start = ac->ac_g_ex.fe_logical; + new_bex_end = + new_bex_start + EXT4_C2B(sbi, ac->ac_b_ex.fe_len); + if (ac->ac_o_ex.fe_logical < new_bex_end) + goto adjust_bex;

- /* the smallest one defines real window */ - win = min(winl, wins); + new_bex_start = ac->ac_o_ex.fe_logical; + new_bex_end = + new_bex_start + EXT4_C2B(sbi, ac->ac_b_ex.fe_len);

- offs = ac->ac_o_ex.fe_logical % - EXT4_C2B(sbi, ac->ac_b_ex.fe_len); - if (offs && offs < win) - win = offs; +adjust_bex: + ac->ac_b_ex.fe_logical = new_bex_start;

- ac->ac_b_ex.fe_logical = ac->ac_o_ex.fe_logical - - EXT4_NUM_B2C(sbi, win); BUG_ON(ac->ac_o_ex.fe_logical < ac->ac_b_ex.fe_logical); BUG_ON(ac->ac_o_ex.fe_len > ac->ac_b_ex.fe_len); + BUG_ON(new_bex_end > (ac->ac_g_ex.fe_logical + + EXT4_C2B(sbi, ac->ac_g_ex.fe_len))); }

/* preallocation can change ac_b_ex, thus we store actually

From: Hao Zeng zenghao@kylinos.cn

[ Upstream commit 23acb14af1914010dd0aae1bbb7fab28bf518b8e ]

Fix fout being fopen'ed but then not subsequently fclose'd. In the affected branch, fout is otherwise going out of scope.

Signed-off-by: Hao Zeng zenghao@kylinos.cn Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20230411084349.1999628-1-zenghao@kylinos.cn Signed-off-by: Sasha Levin sashal@kernel.org --- samples/bpf/hbm.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/samples/bpf/hbm.c b/samples/bpf/hbm.c index e0fbab9bec83e..6d6d4e4ea8437 100644 --- a/samples/bpf/hbm.c +++ b/samples/bpf/hbm.c @@ -307,6 +307,7 @@ static int run_bpf_prog(char *prog, int cg_id) fout = fopen(fname, "w"); fprintf(fout, "id:%d\n", cg_id); fprintf(fout, "ERROR: Could not lookup queue_stats\n"); + fclose(fout); } else if (stats_flag && qstats.lastPacketTime > qstats.firstPacketTime) { long long delta_us = (qstats.lastPacketTime -

From: Hyunwoo Kim imv4bel@gmail.com

[ Upstream commit 58d1b717879bfeabe09b35e41ad667c79933eb2e ]

An integer overflow occurs in the iwl_write_to_user_buf() function, which is called by the iwl_dbgfs_monitor_data_read() function.

static bool iwl_write_to_user_buf(char __user *user_buf, ssize_t count, void *buf, ssize_t *size, ssize_t *bytes_copied) { int buf_size_left = count - *bytes_copied;

buf_size_left = buf_size_left - (buf_size_left % sizeof(u32)); if (*size > buf_size_left) *size = buf_size_left;

If the user passes a SIZE_MAX value to the "ssize_t count" parameter, the ssize_t count parameter is assigned to "int buf_size_left". Then compare "*size" with "buf_size_left" . Here, "buf_size_left" is a negative number, so "*size" is assigned "buf_size_left" and goes into the third argument of the copy_to_user function, causing a heap overflow.

This is not a security vulnerability because iwl_dbgfs_monitor_data_read() is a debugfs operation with 0400 privileges.

Signed-off-by: Hyunwoo Kim imv4bel@gmail.com Signed-off-by: Gregory Greenman gregory.greenman@intel.com Link: https://lore.kernel.org/r/20230414130637.2d80ace81532.Iecfba549e0e0be21bbb03... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index 3a93a7b8ba0af..e7b90cf1f28cf 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -2832,7 +2832,7 @@ static bool iwl_write_to_user_buf(char __user *user_buf, ssize_t count, void *buf, ssize_t *size, ssize_t *bytes_copied) { - int buf_size_left = count - *bytes_copied; + ssize_t buf_size_left = count - *bytes_copied;

buf_size_left = buf_size_left - (buf_size_left % sizeof(u32)); if (*size > buf_size_left)

From: Min Li lm0963hack@gmail.com

[ Upstream commit 25e97f7b1866e6b8503be349eeea44bb52d661ce ]

conn->chan_lock isn't acquired before l2cap_get_chan_by_scid, if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance' is triggered.

Reported-by: syzbot+9519d6b5b79cf7787cf3@syzkaller.appspotmail.com Link: https://lore.kernel.org/all/000000000000894f5f05f95e9f4d@google.com/ Signed-off-by: Min Li lm0963hack@gmail.com Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/l2cap_core.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 3c559a177761b..5f53e75d83024 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -4410,7 +4410,6 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn,

chan = l2cap_get_chan_by_scid(conn, scid); if (!chan) { - mutex_unlock(&conn->chan_lock); return 0; }

From: Bastien Nocera hadess@hadess.net

[ Upstream commit 7ad1fe0da0fa91bf920b79ab05ae97bfabecc4f4 ]

For devices that support the 0x0003 feature (Device Information) version 4, set the serial based on the output of that feature, rather than relying on the usbhid code setting the USB serial.

This should allow the serial when connected through USB to (nearly) match the one when connected through a unifying receiver.

For example, on the serials on a G903 wired/wireless mouse: - Unifying: 4067-e8-ce-cd-45 - USB before patch: 017C385C3837 - USB after patch: c086-e8-ce-cd-45

Signed-off-by: Bastien Nocera hadess@hadess.net Link: https://lore.kernel.org/r/20230302130117.3975-1-hadess@hadess.net Signed-off-by: Benjamin Tissoires benjamin.tissoires@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-logitech-hidpp.c | 51 ++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+)

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 919551ed5809c..2fd64361884cf 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -903,6 +903,55 @@ static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp) return 0; }

+/* -------------------------------------------------------------------------- */ +/* 0x0003: Device Information */ +/* -------------------------------------------------------------------------- */ + +#define HIDPP_PAGE_DEVICE_INFORMATION 0x0003 + +#define CMD_GET_DEVICE_INFO 0x00 + +static int hidpp_get_serial(struct hidpp_device *hidpp, u32 *serial) +{ + struct hidpp_report response; + u8 feature_type; + u8 feature_index; + int ret; + + ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_DEVICE_INFORMATION, + &feature_index, + &feature_type); + if (ret) + return ret; + + ret = hidpp_send_fap_command_sync(hidpp, feature_index, + CMD_GET_DEVICE_INFO, + NULL, 0, &response); + if (ret) + return ret; + + /* See hidpp_unifying_get_serial() */ + *serial = *((u32 *)&response.rap.params[1]); + return 0; +} + +static int hidpp_serial_init(struct hidpp_device *hidpp) +{ + struct hid_device *hdev = hidpp->hid_dev; + u32 serial; + int ret; + + ret = hidpp_get_serial(hidpp, &serial); + if (ret) + return ret; + + snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD", + hdev->product, &serial); + dbg_hid("HID++ DeviceInformation: Got serial: %s\n", hdev->uniq); + + return 0; +} + /* -------------------------------------------------------------------------- */ /* 0x0005: GetDeviceNameType */ /* -------------------------------------------------------------------------- */ @@ -3651,6 +3700,8 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)

if (hidpp->quirks & HIDPP_QUIRK_UNIFYING) hidpp_unifying_init(hidpp); + else if (hid_is_usb(hidpp->hid_dev)) + hidpp_serial_init(hidpp);

connected = hidpp_root_get_protocol_version(hidpp) == 0; atomic_set(&hidpp->connected, connected);

From: Kevin Groeneveld kgroeneveld@lenbrook.com

[ Upstream commit 87c614175bbf28d3fd076dc2d166bac759e41427 ]

When using gpio based chip select the cs value can go outside the range 0 – 3. The various MX51_ECSPI_* macros did not take this into consideration resulting in possible corruption of the configuration.

For example for any cs value over 3 the SCLKPHA bits would not be set and other values in the register possibly corrupted.

One way to fix this is to just mask the cs bits to 2 bits. This still allows all 4 native chip selects to work as well as gpio chip selects (which can use any of the 4 chip select configurations).

Signed-off-by: Kevin Groeneveld kgroeneveld@lenbrook.com Link: https://lore.kernel.org/r/20230318222132.3373-1-kgroeneveld@lenbrook.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-imx.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 9d593675257e0..67f31183c1180 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -239,6 +239,18 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi, return true; }

+/* + * Note the number of natively supported chip selects for MX51 is 4. Some + * devices may have less actual SS pins but the register map supports 4. When + * using gpio chip selects the cs values passed into the macros below can go + * outside the range 0 - 3. We therefore need to limit the cs value to avoid + * corrupting bits outside the allocated locations. + * + * The simplest way to do this is to just mask the cs bits to 2 bits. This + * still allows all 4 native chip selects to work as well as gpio chip selects + * (which can use any of the 4 chip select configurations). + */ + #define MX51_ECSPI_CTRL 0x08 #define MX51_ECSPI_CTRL_ENABLE (1 << 0) #define MX51_ECSPI_CTRL_XCH (1 << 2) @@ -247,16 +259,16 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi, #define MX51_ECSPI_CTRL_DRCTL(drctl) ((drctl) << 16) #define MX51_ECSPI_CTRL_POSTDIV_OFFSET 8 #define MX51_ECSPI_CTRL_PREDIV_OFFSET 12 -#define MX51_ECSPI_CTRL_CS(cs) ((cs) << 18) +#define MX51_ECSPI_CTRL_CS(cs) ((cs & 3) << 18) #define MX51_ECSPI_CTRL_BL_OFFSET 20 #define MX51_ECSPI_CTRL_BL_MASK (0xfff << 20)

#define MX51_ECSPI_CONFIG 0x0c -#define MX51_ECSPI_CONFIG_SCLKPHA(cs) (1 << ((cs) + 0)) -#define MX51_ECSPI_CONFIG_SCLKPOL(cs) (1 << ((cs) + 4)) -#define MX51_ECSPI_CONFIG_SBBCTRL(cs) (1 << ((cs) + 8)) -#define MX51_ECSPI_CONFIG_SSBPOL(cs) (1 << ((cs) + 12)) -#define MX51_ECSPI_CONFIG_SCLKCTL(cs) (1 << ((cs) + 20)) +#define MX51_ECSPI_CONFIG_SCLKPHA(cs) (1 << ((cs & 3) + 0)) +#define MX51_ECSPI_CONFIG_SCLKPOL(cs) (1 << ((cs & 3) + 4)) +#define MX51_ECSPI_CONFIG_SBBCTRL(cs) (1 << ((cs & 3) + 8)) +#define MX51_ECSPI_CONFIG_SSBPOL(cs) (1 << ((cs & 3) + 12)) +#define MX51_ECSPI_CONFIG_SCLKCTL(cs) (1 << ((cs & 3) + 20))

#define MX51_ECSPI_INT 0x10 #define MX51_ECSPI_INT_TEEN (1 << 0)

From: Frank Wang frank.wang@rock-chips.com

[ Upstream commit dac3b192107b978198e89ec0f77375738352e0c8 ]

PD3.0 Spec 6.4.4.3.2 say that only Responder supports 12 or more SVIDs, the Discover SVIDs Command Shall be executed multiple times until a Discover SVIDs VDO is returned ending either with a SVID value of 0x0000 in the last part of the last VDO or with a VDO containing two SVIDs with values of 0x0000.

In the current implementation, if the last VDO does not find that the Discover SVIDs Command would be executed multiple times even if the Responder SVIDs are less than 12, and we found some odd dockers just meet this case. So fix it.

Acked-by: Heikki Krogerus heikki.krogerus@linux.intel.com Signed-off-by: Frank Wang frank.wang@rock-chips.com Link: https://lore.kernel.org/r/20230316081149.24519-1-frank.wang@rock-chips.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/typec/tcpm/tcpm.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index fb18264b702e6..b259a4a28f81a 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1018,7 +1018,21 @@ static bool svdm_consume_svids(struct tcpm_port *port, const __le32 *payload, pmdata->svids[pmdata->nsvids++] = svid; tcpm_log(port, "SVID %d: 0x%x", pmdata->nsvids, svid); } - return true; + + /* + * PD3.0 Spec 6.4.4.3.2: The SVIDs are returned 2 per VDO (see Table + * 6-43), and can be returned maximum 6 VDOs per response (see Figure + * 6-19). If the Respondersupports 12 or more SVID then the Discover + * SVIDs Command Shall be executed multiple times until a Discover + * SVIDs VDO is returned ending either with a SVID value of 0x0000 in + * the last part of the last VDO or with a VDO containing two SVIDs + * with values of 0x0000. + * + * However, some odd dockers support SVIDs less than 12 but without + * 0x0000 in the last VDO, so we need to break the Discover SVIDs + * request and return false here. + */ + return cnt == 7; abort: tcpm_log(port, "SVID_DISCOVERY_MAX(%d) too low!", SVID_DISCOVERY_MAX); return false;

From: Rodríguez Barbarin, José Javier JoseJavier.Rodriguez@duagon.com

[ Upstream commit 9be24faadd085c284890c3afcec7a0184642315a ]

mcb-pci requests a fixed-size memory region to parse the chameleon table, however, if the chameleon table is smaller that the allocated region, it could overlap with the IP Cores' memory regions.

After parsing the chameleon table, drop/reallocate the memory region with the actual chameleon table size.

Co-developed-by: Jorge Sanjuan Garcia jorge.sanjuangarcia@duagon.com Signed-off-by: Jorge Sanjuan Garcia jorge.sanjuangarcia@duagon.com Signed-off-by: Javier Rodriguez josejavier.rodriguez@duagon.com Signed-off-by: Johannes Thumshirn jth@kernel.org Link: https://lore.kernel.org/r/20230411083329.4506-3-jth@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mcb/mcb-pci.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c index 14866aa22f753..22927c80ff469 100644 --- a/drivers/mcb/mcb-pci.c +++ b/drivers/mcb/mcb-pci.c @@ -31,7 +31,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct resource *res; struct priv *priv; - int ret; + int ret, table_size; unsigned long flags;

priv = devm_kzalloc(&pdev->dev, sizeof(struct priv), GFP_KERNEL); @@ -90,7 +90,30 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (ret < 0) goto out_mcb_bus;

- dev_dbg(&pdev->dev, "Found %d cells\n", ret); + table_size = ret; + + if (table_size < CHAM_HEADER_SIZE) { + /* Release the previous resources */ + devm_iounmap(&pdev->dev, priv->base); + devm_release_mem_region(&pdev->dev, priv->mapbase, CHAM_HEADER_SIZE); + + /* Then, allocate it again with the actual chameleon table size */ + res = devm_request_mem_region(&pdev->dev, priv->mapbase, + table_size, + KBUILD_MODNAME); + if (!res) { + dev_err(&pdev->dev, "Failed to request PCI memory\n"); + ret = -EBUSY; + goto out_mcb_bus; + } + + priv->base = devm_ioremap(&pdev->dev, priv->mapbase, table_size); + if (!priv->base) { + dev_err(&pdev->dev, "Cannot ioremap\n"); + ret = -ENOMEM; + goto out_mcb_bus; + } + }

mcb_bus_add_devices(priv->bus);

From: Hao Zeng zenghao@kylinos.cn

[ Upstream commit fa359d068574d29e7d2f0fdd0ebe4c6a12b5cfb9 ]

Common realloc mistake: 'file_append' nulled but not freed upon failure

Link: https://lkml.kernel.org/r/20230426010527.703093-1-zenghao@kylinos.cn

Signed-off-by: Hao Zeng zenghao@kylinos.cn Suggested-by: Steven Rostedt rostedt@goodmis.org Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/recordmcount.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index cce12e1971d85..ec692af8ce9eb 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -102,6 +102,7 @@ static ssize_t uwrite(void const *const buf, size_t const count) { size_t cnt = count; off_t idx = 0; + void *p = NULL;

file_updated = 1;

@@ -109,7 +110,10 @@ static ssize_t uwrite(void const *const buf, size_t const count) off_t aoffset = (file_ptr + count) - file_end;

if (aoffset > file_append_size) { - file_append = realloc(file_append, aoffset); + p = realloc(file_append, aoffset); + if (!p) + free(file_append); + file_append = p; file_append_size = aoffset; } if (!file_append) {

From: Arnd Bergmann arnd@arndb.de

[ Upstream commit b4a2adbf3586efa12fe78b9dec047423e01f3010 ]

Older gcc versions get confused by comparing a u32 value to a negative constant in a switch()/case block:

drivers/clk/tegra/clk-tegra20.c: In function 'tegra20_clk_measure_input_freq': drivers/clk/tegra/clk-tegra20.c:581:2: error: case label does not reduce to an integer constant case OSC_CTRL_OSC_FREQ_12MHZ: ^~~~ drivers/clk/tegra/clk-tegra20.c:593:2: error: case label does not reduce to an integer constant case OSC_CTRL_OSC_FREQ_26MHZ:

Make the constants unsigned instead.

Signed-off-by: Arnd Bergmann arnd@arndb.de Link: https://lore.kernel.org/r/20230227085914.2560984-1-arnd@kernel.org Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/tegra/clk-tegra20.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c index 3e0f04f0e16e5..3f74497d73e58 100644 --- a/drivers/clk/tegra/clk-tegra20.c +++ b/drivers/clk/tegra/clk-tegra20.c @@ -18,24 +18,24 @@ #define MISC_CLK_ENB 0x48

#define OSC_CTRL 0x50 -#define OSC_CTRL_OSC_FREQ_MASK (3<<30) -#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) -#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30) -#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30) -#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30) -#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) - -#define OSC_CTRL_PLL_REF_DIV_MASK (3<<28) -#define OSC_CTRL_PLL_REF_DIV_1 (0<<28) -#define OSC_CTRL_PLL_REF_DIV_2 (1<<28) -#define OSC_CTRL_PLL_REF_DIV_4 (2<<28) +#define OSC_CTRL_OSC_FREQ_MASK (3u<<30) +#define OSC_CTRL_OSC_FREQ_13MHZ (0u<<30) +#define OSC_CTRL_OSC_FREQ_19_2MHZ (1u<<30) +#define OSC_CTRL_OSC_FREQ_12MHZ (2u<<30) +#define OSC_CTRL_OSC_FREQ_26MHZ (3u<<30) +#define OSC_CTRL_MASK (0x3f2u | OSC_CTRL_OSC_FREQ_MASK) + +#define OSC_CTRL_PLL_REF_DIV_MASK (3u<<28) +#define OSC_CTRL_PLL_REF_DIV_1 (0u<<28) +#define OSC_CTRL_PLL_REF_DIV_2 (1u<<28) +#define OSC_CTRL_PLL_REF_DIV_4 (2u<<28)

#define OSC_FREQ_DET 0x58 -#define OSC_FREQ_DET_TRIG (1<<31) +#define OSC_FREQ_DET_TRIG (1u<<31)

#define OSC_FREQ_DET_STATUS 0x5c -#define OSC_FREQ_DET_BUSY (1<<31) -#define OSC_FREQ_DET_CNT_MASK 0xFFFF +#define OSC_FREQ_DET_BUSYu (1<<31) +#define OSC_FREQ_DET_CNT_MASK 0xFFFFu

#define TEGRA20_CLK_PERIPH_BANKS 3

From: Vicki Pfau vi@endrift.com

[ Upstream commit f9b2e603c6216824e34dc9a67205d98ccc9a41ca ]

Wired GIP devices present multiple interfaces with the same USB identification other than the interface number. This adds constants for differentiating two of them and uses them where appropriate

Signed-off-by: Vicki Pfau vi@endrift.com Link: https://lore.kernel.org/r/20230411031650.960322-2-vi@endrift.com Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/joystick/xpad.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index 70dedc0f7827c..0bd55e1fca372 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -489,6 +489,9 @@ struct xboxone_init_packet { }

+#define GIP_WIRED_INTF_DATA 0 +#define GIP_WIRED_INTF_AUDIO 1 + /* * This packet is required for all Xbox One pads with 2015 * or later firmware installed (or present from the factory). @@ -1813,7 +1816,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id }

if (xpad->xtype == XTYPE_XBOXONE && - intf->cur_altsetting->desc.bInterfaceNumber != 0) { + intf->cur_altsetting->desc.bInterfaceNumber != GIP_WIRED_INTF_DATA) { /* * The Xbox One controller lists three interfaces all with the * same interface class, subclass and protocol. Differentiate by

From: Qiang Ning qning0106@126.com

[ Upstream commit 96da8f148396329ba769246cb8ceaa35f1ddfc48 ]

When dln2_setup_rx_urbs() in dln2_probe() fails, error out_free forgets to call usb_put_dev() to decrease the refcount of dln2->usb_dev.

Fix this by adding usb_put_dev() in the error handling code of dln2_probe().

Signed-off-by: Qiang Ning qning0106@126.com Signed-off-by: Lee Jones lee@kernel.org Link: https://lore.kernel.org/r/20230330024353.4503-1-qning0106@126.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/dln2.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index 707f4287ab4a0..80952237e4b43 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -797,6 +797,7 @@ static int dln2_probe(struct usb_interface *interface, dln2_stop_rx_urbs(dln2);

out_free: + usb_put_dev(dln2->usb_dev); dln2_free(dln2);

return ret;

From: Filipe Manana fdmanana@suse.com

[ Upstream commit 0004ff15ea26015a0a3a6182dca3b9d1df32e2b7 ]

When loading a free space cache from disk, at __load_free_space_cache(), if we fail to insert a bitmap entry, we still increment the number of total bitmaps in the btrfs_free_space_ctl structure, which is incorrect since we failed to add the bitmap entry. On error we then empty the cache by calling __btrfs_remove_free_space_cache(), which will result in getting the total bitmaps counter set to 1.

A failure to load a free space cache is not critical, so if a failure happens we just rebuild the cache by scanning the extent tree, which happens at block-group.c:caching_thread(). Yet the failure will result in having the total bitmaps of the btrfs_free_space_ctl always bigger by 1 then the number of bitmap entries we have. So fix this by having the total bitmaps counter be incremented only if we successfully added the bitmap entry.

Fixes: a67509c30079 ("Btrfs: add a io_ctl struct and helpers for dealing with the space cache") Reviewed-by: Anand Jain anand.jain@oracle.com CC: stable@vger.kernel.org # 4.4+ Signed-off-by: Filipe Manana fdmanana@suse.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/free-space-cache.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index d2d32fed8f2e9..0cb93f73acb2d 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -784,15 +784,16 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, } spin_lock(&ctl->tree_lock); ret = link_free_space(ctl, e); - ctl->total_bitmaps++; - ctl->op->recalc_thresholds(ctl); - spin_unlock(&ctl->tree_lock); if (ret) { + spin_unlock(&ctl->tree_lock); btrfs_err(fs_info, "Duplicate entries in free space cache, dumping"); kmem_cache_free(btrfs_free_space_cachep, e); goto free_cache; } + ctl->total_bitmaps++; + ctl->op->recalc_thresholds(ctl); + spin_unlock(&ctl->tree_lock); list_add_tail(&e->list, &bitmaps); }

From: Wyes Karny wyes.karny@amd.com

[ Upstream commit c2adb1877b76fc81ae041e1db1a6ed2078c6746b ]

System-wide TSC read could cause a drift in C0 percentage calculation. Because if first TSC is read and then one by one mperf is read for all cpus, this introduces drift between mperf reading of later CPUs and TSC reading. To lower this drift read TSC per CPU and also just after mperf read. This technique improves C0 percentage calculation in Mperf monitor.

Before fix: (System 100% busy)

| Mperf || RAPL || Idle_Stats PKG|CORE| CPU| C0 | Cx | Freq || pack | core || POLL | C1 | C2 0| 0| 0| 87.15| 12.85| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 0| 256| 84.62| 15.38| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 1| 1| 87.15| 12.85| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 1| 257| 84.08| 15.92| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 2| 2| 86.61| 13.39| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 2| 258| 83.26| 16.74| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 3| 3| 86.61| 13.39| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 3| 259| 83.60| 16.40| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 4| 4| 86.33| 13.67| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 4| 260| 83.33| 16.67| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 5| 5| 86.06| 13.94| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 5| 261| 83.05| 16.95| 2695||168659003|3970468|| 0.00| 0.00| 0.00 0| 6| 6| 85.51| 14.49| 2695||168659003|3970468|| 0.00| 0.00| 0.00

After fix: (System 100% busy)

| Mperf || RAPL || Idle_Stats PKG|CORE| CPU| C0 | Cx | Freq || pack | core || POLL | C1 | C2 0| 0| 0| 98.03| 1.97| 2415||163295480|3811189|| 0.00| 0.00| 0.00 0| 0| 256| 98.50| 1.50| 2394||163295480|3811189|| 0.00| 0.00| 0.00 0| 1| 1| 99.99| 0.01| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 1| 257| 99.99| 0.01| 2375||163295480|3811189|| 0.00| 0.00| 0.00 0| 2| 2| 99.99| 0.01| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 2| 258|100.00| 0.00| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 3| 3|100.00| 0.00| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 3| 259| 99.99| 0.01| 2435||163295480|3811189|| 0.00| 0.00| 0.00 0| 4| 4|100.00| 0.00| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 4| 260|100.00| 0.00| 2435||163295480|3811189|| 0.00| 0.00| 0.00 0| 5| 5| 99.99| 0.01| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 5| 261|100.00| 0.00| 2435||163295480|3811189|| 0.00| 0.00| 0.00 0| 6| 6|100.00| 0.00| 2401||163295480|3811189|| 0.00| 0.00| 0.00 0| 6| 262|100.00| 0.00| 2435||163295480|3811189|| 0.00| 0.00| 0.00

Cc: Thomas Renninger trenn@suse.com Cc: Shuah Khan shuah@kernel.org Cc: Dominik Brodowski linux@dominikbrodowski.net

Fixes: 7fe2f6399a84 ("cpupowerutils - cpufrequtils extended with quite some features") Signed-off-by: Wyes Karny wyes.karny@amd.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../utils/idle_monitor/mperf_monitor.c | 31 +++++++++---------- 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c index 44806a6dae11a..7a76d63003748 100644 --- a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c +++ b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c @@ -66,8 +66,8 @@ static int max_freq_mode; */ static unsigned long max_frequency;

-static unsigned long long tsc_at_measure_start; -static unsigned long long tsc_at_measure_end; +static unsigned long long *tsc_at_measure_start; +static unsigned long long *tsc_at_measure_end; static unsigned long long *mperf_previous_count; static unsigned long long *aperf_previous_count; static unsigned long long *mperf_current_count; @@ -130,7 +130,7 @@ static int mperf_get_count_percent(unsigned int id, double *percent, aperf_diff = aperf_current_count[cpu] - aperf_previous_count[cpu];

if (max_freq_mode == MAX_FREQ_TSC_REF) { - tsc_diff = tsc_at_measure_end - tsc_at_measure_start; + tsc_diff = tsc_at_measure_end[cpu] - tsc_at_measure_start[cpu]; *percent = 100.0 * mperf_diff / tsc_diff; dprint("%s: TSC Ref - mperf_diff: %llu, tsc_diff: %llu\n", mperf_cstates[id].name, mperf_diff, tsc_diff); @@ -167,7 +167,7 @@ static int mperf_get_count_freq(unsigned int id, unsigned long long *count,

if (max_freq_mode == MAX_FREQ_TSC_REF) { /* Calculate max_freq from TSC count */ - tsc_diff = tsc_at_measure_end - tsc_at_measure_start; + tsc_diff = tsc_at_measure_end[cpu] - tsc_at_measure_start[cpu]; time_diff = timespec_diff_us(time_start, time_end); max_frequency = tsc_diff / time_diff; } @@ -186,33 +186,27 @@ static int mperf_get_count_freq(unsigned int id, unsigned long long *count, static int mperf_start(void) { int cpu; - unsigned long long dbg;

clock_gettime(CLOCK_REALTIME, &time_start); - mperf_get_tsc(&tsc_at_measure_start);

- for (cpu = 0; cpu < cpu_count; cpu++) + for (cpu = 0; cpu < cpu_count; cpu++) { + mperf_get_tsc(&tsc_at_measure_start[cpu]); mperf_init_stats(cpu); + }

- mperf_get_tsc(&dbg); - dprint("TSC diff: %llu\n", dbg - tsc_at_measure_start); return 0; }

static int mperf_stop(void) { - unsigned long long dbg; int cpu;

- for (cpu = 0; cpu < cpu_count; cpu++) + for (cpu = 0; cpu < cpu_count; cpu++) { mperf_measure_stats(cpu); + mperf_get_tsc(&tsc_at_measure_end[cpu]); + }

- mperf_get_tsc(&tsc_at_measure_end); clock_gettime(CLOCK_REALTIME, &time_end); - - mperf_get_tsc(&dbg); - dprint("TSC diff: %llu\n", dbg - tsc_at_measure_end); - return 0; }

@@ -311,7 +305,8 @@ struct cpuidle_monitor *mperf_register(void) aperf_previous_count = calloc(cpu_count, sizeof(unsigned long long)); mperf_current_count = calloc(cpu_count, sizeof(unsigned long long)); aperf_current_count = calloc(cpu_count, sizeof(unsigned long long)); - + tsc_at_measure_start = calloc(cpu_count, sizeof(unsigned long long)); + tsc_at_measure_end = calloc(cpu_count, sizeof(unsigned long long)); mperf_monitor.name_len = strlen(mperf_monitor.name); return &mperf_monitor; } @@ -322,6 +317,8 @@ void mperf_unregister(void) free(aperf_previous_count); free(mperf_current_count); free(aperf_current_count); + free(tsc_at_measure_start); + free(tsc_at_measure_end); free(is_valid); }

From: Uwe Kleine-König u.kleine-koenig@pengutronix.de

[ Upstream commit f816b9829b19394d318e01953aa3b2721bca040d ]

In the (unlikely) event that pm_runtime_get() (disguised as pm_runtime_resume_and_get()) fails, the remove callback returned an error early. The problem with this is that the driver core ignores the error value and continues removing the device. This results in a resource leak. Worse the devm allocated resources are freed and so if a callback of the driver is called later the register mapping is already gone which probably results in a crash.

Fixes: a31eda65ba21 ("net: fec: fix clock count mis-match") Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Reviewed-by: Andrew Lunn andrew@lunn.ch Link: https://lore.kernel.org/r/20230510200020.1534610-1-u.kleine-koenig@pengutron... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/freescale/fec_main.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index e1b8c58c4d6b2..f67f104049dba 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -3769,7 +3769,9 @@ fec_drv_remove(struct platform_device *pdev)

ret = pm_runtime_get_sync(&pdev->dev); if (ret < 0) - return ret; + dev_err(&pdev->dev, + "Failed to resume device in remove callback (%pe)\n", + ERR_PTR(ret));

cancel_work_sync(&fep->tx_timeout_work); fec_ptp_stop(pdev); @@ -3782,8 +3784,13 @@ fec_drv_remove(struct platform_device *pdev) of_phy_deregister_fixed_link(np); of_node_put(fep->phy_node);

- clk_disable_unprepare(fep->clk_ahb); - clk_disable_unprepare(fep->clk_ipg); + /* After pm_runtime_get_sync() failed, the clks are still off, so skip + * disabling them again. + */ + if (ret >= 0) { + clk_disable_unprepare(fep->clk_ahb); + clk_disable_unprepare(fep->clk_ipg); + } pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev);

From: Zhuang Shengen zhuangshengen@huawei.com

[ Upstream commit 6d4486efe9c69626cab423456169e250a5cd3af5 ]

When client and server establish a connection through vsock, the client send a request to the server to initiate the connection, then start a timer to wait for the server's response. When the server's RESPONSE message arrives, the timer also times out and exits. The server's RESPONSE message is processed first, and the connection is established. However, the client's timer also times out, the original processing logic of the client is to directly set the state of this vsock to CLOSE and return ETIMEDOUT. It will not notify the server when the port is released, causing the server port remain. when client's vsock_connect timeout，it should check sk state is ESTABLISHED or not. if sk state is ESTABLISHED, it means the connection is established, the client should not set the sk state to CLOSE

Note: I encountered this issue on kernel-4.18, which can be fixed by this patch. Then I checked the latest code in the community and found similar issue.

Fixes: d021c344051a ("VSOCK: Introduce VM Sockets") Signed-off-by: Zhuang Shengen zhuangshengen@huawei.com Reviewed-by: Stefano Garzarella sgarzare@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/vmw_vsock/af_vsock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 28f6188458c42..4cd65a1a07f97 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1232,7 +1232,7 @@ static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr, vsock_transport_cancel_pkt(vsk); vsock_remove_connected(vsk); goto out_wait; - } else if (timeout == 0) { + } else if ((sk->sk_state != TCP_ESTABLISHED) && (timeout == 0)) { err = -ETIMEDOUT; sk->sk_state = TCP_CLOSE; sock->state = SS_UNCONNECTED;

From: Peilin Ye peilin.ye@bytedance.com

[ Upstream commit ab198e1d0dd8dc4bc7575fb50758e2cbd51e14e1 ]

Feng reported an skb_under_panic BUG triggered by running test_ip6gretap() in tools/testing/selftests/bpf/test_tunnel.sh:

[ 82.492551] skbuff: skb_under_panic: text:ffffffffb268bb8e len:403 put:12 head:ffff9997c5480000 data:ffff9997c547fff8 tail:0x18b end:0x2c0 dev:ip6gretap11 <...> [ 82.607380] Call Trace: [ 82.609389] <TASK> [ 82.611136] skb_push.cold.109+0x10/0x10 [ 82.614289] __gre6_xmit+0x41e/0x590 [ 82.617169] ip6gre_tunnel_xmit+0x344/0x3f0 [ 82.620526] dev_hard_start_xmit+0xf1/0x330 [ 82.623882] sch_direct_xmit+0xe4/0x250 [ 82.626961] __dev_queue_xmit+0x720/0xfe0 <...> [ 82.633431] packet_sendmsg+0x96a/0x1cb0 [ 82.636568] sock_sendmsg+0x30/0x40 <...>

The following sequence of events caused the BUG:

1. During ip6gretap device initialization, tunnel->tun_hlen (e.g. 4) is calculated based on old flags (see ip6gre_calc_hlen()); 2. packet_snd() reserves header room for skb A, assuming tunnel->tun_hlen is 4; 3. Later (in clsact Qdisc), the eBPF program sets a new tunnel key for skb A using bpf_skb_set_tunnel_key() (see _ip6gretap_set_tunnel()); 4. __gre6_xmit() detects the new tunnel key, and recalculates "tun_hlen" (e.g. 12) based on new flags (e.g. TUNNEL_KEY and TUNNEL_SEQ); 5. gre_build_header() calls skb_push() with insufficient reserved header room, triggering the BUG.

As sugguested by Cong, fix it by moving the call to skb_cow_head() after the recalculation of tun_hlen.

Reproducer:

OBJ=$LINUX/tools/testing/selftests/bpf/test_tunnel_kern.o

ip netns add at_ns0 ip link add veth0 type veth peer name veth1 ip link set veth0 netns at_ns0 ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0 ip netns exec at_ns0 ip link set dev veth0 up ip link set dev veth1 up mtu 1500 ip addr add dev veth1 172.16.1.200/24

ip netns exec at_ns0 ip addr add ::11/96 dev veth0 ip netns exec at_ns0 ip link set dev veth0 up ip addr add dev veth1 ::22/96 ip link set dev veth1 up

ip netns exec at_ns0 \ ip link add dev ip6gretap00 type ip6gretap seq flowlabel 0xbcdef key 2 \ local ::11 remote ::22

ip netns exec at_ns0 ip addr add dev ip6gretap00 10.1.1.100/24 ip netns exec at_ns0 ip addr add dev ip6gretap00 fc80::100/96 ip netns exec at_ns0 ip link set dev ip6gretap00 up

ip link add dev ip6gretap11 type ip6gretap external ip addr add dev ip6gretap11 10.1.1.200/24 ip addr add dev ip6gretap11 fc80::200/24 ip link set dev ip6gretap11 up

tc qdisc add dev ip6gretap11 clsact tc filter add dev ip6gretap11 egress bpf da obj $OBJ sec ip6gretap_set_tunnel tc filter add dev ip6gretap11 ingress bpf da obj $OBJ sec ip6gretap_get_tunnel

ping6 -c 3 -w 10 -q ::11

Fixes: 6712abc168eb ("ip6_gre: add ip6 gre and gretap collect_md mode") Reported-by: Feng Zhou zhoufeng.zf@bytedance.com Co-developed-by: Cong Wang cong.wang@bytedance.com Signed-off-by: Cong Wang cong.wang@bytedance.com Signed-off-by: Peilin Ye peilin.ye@bytedance.com Signed-off-by: David S. Miller davem@davemloft.net Stable-dep-of: d80fc101d2eb ("erspan: get the proto with the md version for collect_md") Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv6/ip6_gre.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 85ec466b5735e..a1fd3c9c1da3e 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -720,9 +720,6 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb, else fl6->daddr = tunnel->parms.raddr;

- if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen)) - return -ENOMEM; - /* Push GRE header. */ protocol = (dev->type == ARPHRD_ETHER) ? htons(ETH_P_TEB) : proto;

@@ -751,6 +748,9 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb, (TUNNEL_CSUM | TUNNEL_KEY | TUNNEL_SEQ); tun_hlen = gre_calc_hlen(flags);

+ if (skb_cow_head(skb, dev->needed_headroom ?: tun_hlen + tunnel->encap_hlen)) + return -ENOMEM; + gre_build_header(skb, tun_hlen, flags, protocol, tunnel_id_to_key32(tun_info->key.tun_id), @@ -761,6 +761,9 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb, if (tunnel->parms.o_flags & TUNNEL_SEQ) tunnel->o_seqno++;

+ if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen)) + return -ENOMEM; + gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags, protocol, tunnel->parms.o_key, htonl(tunnel->o_seqno));

From: Peilin Ye peilin.ye@bytedance.com

[ Upstream commit 31c417c948d7f6909cb63f0ac3298f3c38f8ce20 ]

As pointed out by Jakub Kicinski, currently using TUNNEL_SEQ in collect_md mode is racy for [IP6]GRE[TAP] devices. Consider the following sequence of events:

1. An [IP6]GRE[TAP] device is created in collect_md mode using "ip link add ... external". "ip" ignores "[o]seq" if "external" is specified, so TUNNEL_SEQ is off, and the device is marked as NETIF_F_LLTX (i.e. it uses lockless TX); 2. Someone sets TUNNEL_SEQ on outgoing skb's, using e.g. bpf_skb_set_tunnel_key() in an eBPF program attached to this device; 3. gre_fb_xmit() or __gre6_xmit() processes these skb's:

gre_build_header(skb, tun_hlen, flags, protocol, tunnel_id_to_key32(tun_info->key.tun_id), (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) : 0); ^^^^^^^^^^^^^^^^^

Since we are not using the TX lock (&txq->_xmit_lock), multiple CPUs may try to do this tunnel->o_seqno++ in parallel, which is racy. Fix it by making o_seqno atomic_t.

As mentioned by Eric Dumazet in commit b790e01aee74 ("ip_gre: lockless xmit"), making o_seqno atomic_t increases "chance for packets being out of order at receiver" when NETIF_F_LLTX is on.

Maybe a better fix would be:

1. Do not ignore "oseq" in external mode. Users MUST specify "oseq" if they want the kernel to allow sequencing of outgoing packets; 2. Reject all outgoing TUNNEL_SEQ packets if the device was not created with "oseq".

Unfortunately, that would break userspace.

We could now make [IP6]GRE[TAP] devices always NETIF_F_LLTX, but let us do it in separate patches to keep this fix minimal.

Suggested-by: Jakub Kicinski kuba@kernel.org Fixes: 77a5196a804e ("gre: add sequence number for collect md mode.") Signed-off-by: Peilin Ye peilin.ye@bytedance.com Acked-by: William Tu u9012063@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Stable-dep-of: d80fc101d2eb ("erspan: get the proto with the md version for collect_md") Signed-off-by: Sasha Levin sashal@kernel.org --- include/net/ip6_tunnel.h | 2 +- include/net/ip_tunnels.h | 2 +- net/ipv4/ip_gre.c | 6 +++--- net/ipv6/ip6_gre.c | 7 ++++--- 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h index 028eaea1c8544..42d50856fcf24 100644 --- a/include/net/ip6_tunnel.h +++ b/include/net/ip6_tunnel.h @@ -57,7 +57,7 @@ struct ip6_tnl {

/* These fields used only by GRE */ __u32 i_seqno; /* The last seen seqno */ - __u32 o_seqno; /* The last output seqno */ + atomic_t o_seqno; /* The last output seqno */ int hlen; /* tun_hlen + encap_hlen */ int tun_hlen; /* Precalculated header length */ int encap_hlen; /* Encap header length (FOU,GUE) */ diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 56deb2501e962..6f75a84b47de5 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -113,7 +113,7 @@ struct ip_tunnel {

/* These four fields used only by GRE */ u32 i_seqno; /* The last seen seqno */ - u32 o_seqno; /* The last output seqno */ + atomic_t o_seqno; /* The last output seqno */ int tun_hlen; /* Precalculated header length */

/* These four fields used only by ERSPAN */ diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 317fdb9f47e88..f8f008344273e 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -437,7 +437,7 @@ static void __gre_xmit(struct sk_buff *skb, struct net_device *dev, /* Push GRE header. */ gre_build_header(skb, tunnel->tun_hlen, flags, proto, tunnel->parms.o_key, - (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) : 0); + (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno)) : 0);

ip_tunnel_xmit(skb, dev, tnl_params, tnl_params->protocol); } @@ -475,7 +475,7 @@ static void gre_fb_xmit(struct sk_buff *skb, struct net_device *dev, (TUNNEL_CSUM | TUNNEL_KEY | TUNNEL_SEQ); gre_build_header(skb, tunnel_hlen, flags, proto, tunnel_id_to_key32(tun_info->key.tun_id), - (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) : 0); + (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno)) : 0);

ip_md_tunnel_xmit(skb, dev, IPPROTO_GRE, tunnel_hlen);

@@ -557,7 +557,7 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev) }

gre_build_header(skb, 8, TUNNEL_SEQ, - proto, 0, htonl(tunnel->o_seqno++)); + proto, 0, htonl(atomic_fetch_inc(&tunnel->o_seqno)));

ip_md_tunnel_xmit(skb, dev, IPPROTO_GRE, tunnel_hlen);

diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index e3c65e7681ad4..63b5fd3742f2c 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -754,7 +754,7 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb, gre_build_header(skb, tun_hlen, flags, protocol, tunnel_id_to_key32(tun_info->key.tun_id), - (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) + (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno)) : 0);

} else { @@ -765,7 +765,8 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,

gre_build_header(skb, tunnel->tun_hlen, flags, protocol, tunnel->parms.o_key, - (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) : 0); + (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno)) + : 0); }

return ip6_tnl_xmit(skb, dev, dsfield, fl6, encap_limit, pmtu, @@ -1048,7 +1049,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb, /* Push GRE header. */ proto = (t->parms.erspan_ver == 1) ? htons(ETH_P_ERSPAN) : htons(ETH_P_ERSPAN2); - gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(t->o_seqno++)); + gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(atomic_fetch_inc(&t->o_seqno)));

/* TooBig packet may have updated dst->dev's mtu */ if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)

From: Jijie Shao shaojijie@huawei.com

[ Upstream commit f14db07064727dd3bc0906c77a6d2759c1bbb395 ]

To prevent the system from abnormally sending PFC frames after an abnormal reset. The hns3 driver notifies the firmware to disable pfc before reset.

Fixes: 35d93a30040c ("net: hns3: adjust the process of PF reset") Signed-off-by: Jijie Shao shaojijie@huawei.com Signed-off-by: Hao Lan lanhao@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 15 +++++++++------ .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 4 ++-- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h | 5 +++++ 3 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index d58abdfdb9b7b..08277c3cf2806 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -6688,12 +6688,15 @@ static void hclge_ae_stop(struct hnae3_handle *handle) /* If it is not PF reset or FLR, the firmware will disable the MAC, * so it only need to stop phy here. */ - if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state) && - hdev->reset_type != HNAE3_FUNC_RESET && - hdev->reset_type != HNAE3_FLR_RESET) { - hclge_mac_stop_phy(hdev); - hclge_update_link_status(hdev); - return; + if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state)) { + hclge_pfc_pause_en_cfg(hdev, HCLGE_PFC_TX_RX_DISABLE, + HCLGE_PFC_DISABLE); + if (hdev->reset_type != HNAE3_FUNC_RESET && + hdev->reset_type != HNAE3_FLR_RESET) { + hclge_mac_stop_phy(hdev); + hclge_update_link_status(hdev); + return; + } }

for (i = 0; i < handle->kinfo.num_tqps; i++) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c index 8448607742a6b..2183e700f9d96 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c @@ -170,8 +170,8 @@ int hclge_mac_pause_en_cfg(struct hclge_dev *hdev, bool tx, bool rx) return hclge_cmd_send(&hdev->hw, &desc, 1); }

-static int hclge_pfc_pause_en_cfg(struct hclge_dev *hdev, u8 tx_rx_bitmap, - u8 pfc_bitmap) +int hclge_pfc_pause_en_cfg(struct hclge_dev *hdev, u8 tx_rx_bitmap, + u8 pfc_bitmap) { struct hclge_desc desc; struct hclge_pfc_en_cmd *pfc = (struct hclge_pfc_en_cmd *)desc.data; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h index 260f22d19d81a..406084bb23072 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h @@ -109,6 +109,9 @@ struct hclge_bp_to_qs_map_cmd { u32 rsvd1; };

+#define HCLGE_PFC_DISABLE 0 +#define HCLGE_PFC_TX_RX_DISABLE 0 + struct hclge_pfc_en_cmd { u8 tx_rx_en_bitmap; u8 pri_en_bitmap; @@ -150,6 +153,8 @@ void hclge_tm_schd_info_update(struct hclge_dev *hdev, u8 num_tc); void hclge_tm_pfc_info_update(struct hclge_dev *hdev); int hclge_tm_dwrr_cfg(struct hclge_dev *hdev); int hclge_tm_init_hw(struct hclge_dev *hdev, bool init); +int hclge_pfc_pause_en_cfg(struct hclge_dev *hdev, u8 tx_rx_bitmap, + u8 pfc_bitmap); int hclge_mac_pause_en_cfg(struct hclge_dev *hdev, bool tx, bool rx); int hclge_pause_addr_cfg(struct hclge_dev *hdev, const u8 *mac_addr); int hclge_pfc_rx_stats_get(struct hclge_dev *hdev, u64 *stats);

From: Duoming Zhou duoming@zju.edu.cn

[ Upstream commit 0f5bb36bf9b39a2a96e730bf4455095b50713f63 ]

When Universal DVB card is detaching, netup_unidvb_dma_fini() uses del_timer() to stop dma->timeout timer. But when timer handler netup_unidvb_dma_timeout() is running, del_timer() could not stop it. As a result, the use-after-free bug could happen. The process is shown below:

(cleanup routine) | (timer routine) | mod_timer(&dev->tx_sim_timer, ..) netup_unidvb_finidev() | (wait a time) netup_unidvb_dma_fini() | netup_unidvb_dma_timeout() del_timer(&dma->timeout); | | ndev->pci_dev->dev //USE

Fix by changing del_timer() to del_timer_sync().

Link: https://lore.kernel.org/linux-media/20230308125514.4208-1-duoming@zju.edu.cn Fixes: 52b1eaf4c59a ("[media] netup_unidvb: NetUP Universal DVB-S/S2/T/T2/C PCI-E card driver") Signed-off-by: Duoming Zhou duoming@zju.edu.cn Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c index eb5621c9ebf85..129acf595410d 100644 --- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c @@ -697,7 +697,7 @@ static void netup_unidvb_dma_fini(struct netup_unidvb_dev *ndev, int num) netup_unidvb_dma_enable(dma, 0); msleep(50); cancel_work_sync(&dma->work); - del_timer(&dma->timeout); + del_timer_sync(&dma->timeout); }

static int netup_unidvb_dma_setup(struct netup_unidvb_dev *ndev)

From: Dong Chenchen dongchenchen2@huawei.com

[ Upstream commit c83b49383b595be50647f0c764a48c78b5f3c4f8 ]

As the call trace shows, skb_panic was caused by wrong skb->mac_header in nsh_gso_segment():

invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 3 PID: 2737 Comm: syz Not tainted 6.3.0-next-20230505 #1 RIP: 0010:skb_panic+0xda/0xe0 call Trace: skb_push+0x91/0xa0 nsh_gso_segment+0x4f3/0x570 skb_mac_gso_segment+0x19e/0x270 __skb_gso_segment+0x1e8/0x3c0 validate_xmit_skb+0x452/0x890 validate_xmit_skb_list+0x99/0xd0 sch_direct_xmit+0x294/0x7c0 __dev_queue_xmit+0x16f0/0x1d70 packet_xmit+0x185/0x210 packet_snd+0xc15/0x1170 packet_sendmsg+0x7b/0xa0 sock_sendmsg+0x14f/0x160

The root cause is: nsh_gso_segment() use skb->network_header - nhoff to reset mac_header in skb_gso_error_unwind() if inner-layer protocol gso fails. However, skb->network_header may be reset by inner-layer protocol gso function e.g. mpls_gso_segment. skb->mac_header reset by the inaccurate network_header will be larger than skb headroom.

nsh_gso_segment nhoff = skb->network_header - skb->mac_header; __skb_pull(skb,nsh_len) skb_mac_gso_segment mpls_gso_segment skb_reset_network_header(skb);//skb->network_header+=nsh_len return -EINVAL; skb_gso_error_unwind skb_push(skb, nsh_len); skb->mac_header = skb->network_header - nhoff; // skb->mac_header > skb->headroom, cause skb_push panic

Use correct mac_offset to restore mac_header and get rid of nhoff.

Fixes: c411ed854584 ("nsh: add GSO support") Reported-by: syzbot+632b5d9964208bfef8c0@syzkaller.appspotmail.com Suggested-by: Eric Dumazet edumazet@google.com Signed-off-by: Dong Chenchen dongchenchen2@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/nsh/nsh.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/net/nsh/nsh.c b/net/nsh/nsh.c index e9ca007718b7e..0f23e5e8e03eb 100644 --- a/net/nsh/nsh.c +++ b/net/nsh/nsh.c @@ -77,13 +77,12 @@ static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, netdev_features_t features) { struct sk_buff *segs = ERR_PTR(-EINVAL); + u16 mac_offset = skb->mac_header; unsigned int nsh_len, mac_len; __be16 proto; - int nhoff;

skb_reset_network_header(skb);

- nhoff = skb->network_header - skb->mac_header; mac_len = skb->mac_len;

if (unlikely(!pskb_may_pull(skb, NSH_BASE_HDR_LEN))) @@ -108,15 +107,14 @@ static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, segs = skb_mac_gso_segment(skb, features); if (IS_ERR_OR_NULL(segs)) { skb_gso_error_unwind(skb, htons(ETH_P_NSH), nsh_len, - skb->network_header - nhoff, - mac_len); + mac_offset, mac_len); goto out; }

for (skb = segs; skb; skb = skb->next) { skb->protocol = htons(ETH_P_NSH); __skb_push(skb, nsh_len); - skb_set_mac_header(skb, -nhoff); + skb->mac_header = mac_offset; skb->network_header = skb->mac_header + mac_len; skb->mac_len = mac_len; }

From: Florian Fainelli f.fainelli@gmail.com

[ Upstream commit 225c657945c4a6307741cb3cc89467eadcc26e9b ]

Removing the phy_stop() from bcmgenet_netif_stop() ended up causing warnings from the PHY library that phy_start() is called from the RUNNING state since we are no longer stopping the PHY state machine during bcmgenet_suspend().

Restore the call to phy_stop() but make it conditional on being called from the close or suspend path.

Fixes: c96e731c93ff ("net: bcmgenet: connect and disconnect from the PHY state machine") Fixes: 93e0401e0fc0 ("net: bcmgenet: Remove phy_stop() from bcmgenet_netif_stop()") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Reviewed-by: Pavan Chebbi pavan.chebbi@broadcom.com Link: https://lore.kernel.org/r/20230515025608.2587012-1-f.fainelli@gmail.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 468f79c270ac3..750acbf294640 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2973,7 +2973,7 @@ static int bcmgenet_open(struct net_device *dev) return ret; }

-static void bcmgenet_netif_stop(struct net_device *dev) +static void bcmgenet_netif_stop(struct net_device *dev, bool stop_phy) { struct bcmgenet_priv *priv = netdev_priv(dev);

@@ -2988,6 +2988,8 @@ static void bcmgenet_netif_stop(struct net_device *dev) /* Disable MAC transmit. TX DMA disabled must be done before this */ umac_enable_set(priv, CMD_TX_EN, false);

+ if (stop_phy) + phy_stop(dev->phydev); bcmgenet_disable_rx_napi(priv); bcmgenet_intr_disable(priv);

@@ -3013,7 +3015,7 @@ static int bcmgenet_close(struct net_device *dev)

netif_dbg(priv, ifdown, dev, "bcmgenet_close\n");

- bcmgenet_netif_stop(dev); + bcmgenet_netif_stop(dev, false);

/* Really kill the PHY state machine and disconnect from it */ phy_disconnect(dev->phydev); @@ -3711,7 +3713,7 @@ static int bcmgenet_suspend(struct device *d)

netif_device_detach(dev);

- bcmgenet_netif_stop(dev); + bcmgenet_netif_stop(dev, true);

if (!device_may_wakeup(d)) phy_suspend(dev->phydev);

From: Christophe JAILLET christophe.jaillet@wanadoo.fr

[ Upstream commit 412cd77a2c24b191c65ea53025222418db09817c ]

cas_saturn_firmware_init() allocates some memory using vmalloc(). This memory is freed in the .remove() function but not it the error handling path of the probe.

Add the missing vfree() to avoid a memory leak, should an error occur.

Fixes: fcaa40669cd7 ("cassini: use request_firmware") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Reviewed-by: Pavan Chebbi pavan.chebbi@broadcom.com Reviewed-by: Simon Horman simon.horman@corigine.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/sun/cassini.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c index 6e78a33aa5e47..ecaa9beee76eb 100644 --- a/drivers/net/ethernet/sun/cassini.c +++ b/drivers/net/ethernet/sun/cassini.c @@ -5138,6 +5138,8 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) cas_shutdown(cp); mutex_unlock(&cp->pm_mutex);

+ vfree(cp->fw_data); + pci_iounmap(pdev, cp->regs);

From: Eric Dumazet edumazet@google.com

[ Upstream commit dacab578c7c6cd06c50c89dfa36b0e0f10decd4e ]

syzbot triggered the following splat [1], sending an empty message through pppoe_sendmsg().

When VLAN_FLAG_REORDER_HDR flag is set, vlan_dev_hard_header() does not push extra bytes for the VLAN header, because vlan is offloaded.

Unfortunately vlan_dev_hard_start_xmit() first reads veth->h_vlan_proto before testing (vlan->flags & VLAN_FLAG_REORDER_HDR).

We need to swap the two conditions.

[1] BUG: KMSAN: uninit-value in vlan_dev_hard_start_xmit+0x171/0x7f0 net/8021q/vlan_dev.c:111 vlan_dev_hard_start_xmit+0x171/0x7f0 net/8021q/vlan_dev.c:111 __netdev_start_xmit include/linux/netdevice.h:4883 [inline] netdev_start_xmit include/linux/netdevice.h:4897 [inline] xmit_one net/core/dev.c:3580 [inline] dev_hard_start_xmit+0x253/0xa20 net/core/dev.c:3596 __dev_queue_xmit+0x3c7f/0x5ac0 net/core/dev.c:4246 dev_queue_xmit include/linux/netdevice.h:3053 [inline] pppoe_sendmsg+0xa93/0xb80 drivers/net/ppp/pppoe.c:900 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] ____sys_sendmsg+0xa24/0xe40 net/socket.c:2501 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2555 __sys_sendmmsg+0x411/0xa50 net/socket.c:2641 __do_sys_sendmmsg net/socket.c:2670 [inline] __se_sys_sendmmsg net/socket.c:2667 [inline] __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Uninit was created at: slab_post_alloc_hook+0x12d/0xb60 mm/slab.h:774 slab_alloc_node mm/slub.c:3452 [inline] kmem_cache_alloc_node+0x543/0xab0 mm/slub.c:3497 kmalloc_reserve+0x148/0x470 net/core/skbuff.c:520 __alloc_skb+0x3a7/0x850 net/core/skbuff.c:606 alloc_skb include/linux/skbuff.h:1277 [inline] sock_wmalloc+0xfe/0x1a0 net/core/sock.c:2583 pppoe_sendmsg+0x3af/0xb80 drivers/net/ppp/pppoe.c:867 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] ____sys_sendmsg+0xa24/0xe40 net/socket.c:2501 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2555 __sys_sendmmsg+0x411/0xa50 net/socket.c:2641 __do_sys_sendmmsg net/socket.c:2670 [inline] __se_sys_sendmmsg net/socket.c:2667 [inline] __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CPU: 0 PID: 29770 Comm: syz-executor.0 Not tainted 6.3.0-rc6-syzkaller-gc478e5b17829 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot syzkaller@googlegroups.com Signed-off-by: Eric Dumazet edumazet@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/8021q/vlan_dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index b10f31f98cb87..0a3a167916218 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -109,8 +109,8 @@ static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs... */ - if (veth->h_vlan_proto != vlan->vlan_proto || - vlan->flags & VLAN_FLAG_REORDER_HDR) { + if (vlan->flags & VLAN_FLAG_REORDER_HDR || + veth->h_vlan_proto != vlan->vlan_proto) { u16 vlan_tci; vlan_tci = vlan->vlan_id; vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority);

From: Maxime Bizon mbizon@freebox.fr

commit a398d5eac6984316e71474e25b975688f282379b upstream.

With faulty usb-storage devices, read/write can timeout, in that case the SCSI layer will abort and re-issue the command. USB storage has no internal timeout, it relies on SCSI layer aborting commands via .eh_abort_handler() for non those responsive devices.

After two consecutive timeouts of the same command, SCSI layer calls .eh_device_reset_handler(), without calling .eh_abort_handler() first.

With usb-storage, this causes a deadlock:

-> .eh_device_reset_handler -> device_reset -> mutex_lock(&(us->dev_mutex));

mutex already by usb_stor_control_thread(), which is waiting for command completion:

-> usb_stor_control_thread (mutex taken here) -> usb_stor_invoke_transport -> usb_stor_Bulk_transport -> usb_stor_bulk_srb -> usb_stor_bulk_transfer_sglist -> usb_sg_wait

Make sure we cancel any pending command in .eh_device_reset_handler() to avoid this.

Signed-off-by: Maxime Bizon mbizon@freebox.fr Cc: linux-usb@vger.kernel.org Cc: stable stable@kernel.org Link: https://lore.kernel.org/all/ZEllnjMKT8ulZbJh@sakura/ Reviewed-by: Alan Stern stern@rowland.harvard.edu Acked-by: Alan Stern stern@rowland.harvard.edu Link: https://lore.kernel.org/r/20230505114759.1189741-1-mbizon@freebox.fr Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/storage/scsiglue.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-)

--- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -407,22 +407,25 @@ static DEF_SCSI_QCMD(queuecommand) ***********************************************************************/

/* Command timeout and abort */ -static int command_abort(struct scsi_cmnd *srb) +static int command_abort_matching(struct us_data *us, struct scsi_cmnd *srb_match) { - struct us_data *us = host_to_us(srb->device->host); - - usb_stor_dbg(us, "%s called\n", __func__); - /* * us->srb together with the TIMED_OUT, RESETTING, and ABORTING * bits are protected by the host lock. */ scsi_lock(us_to_host(us));

- /* Is this command still active? */ - if (us->srb != srb) { + /* is there any active pending command to abort ? */ + if (!us->srb) { scsi_unlock(us_to_host(us)); usb_stor_dbg(us, "-- nothing to abort\n"); + return SUCCESS; + } + + /* Does the command match the passed srb if any ? */ + if (srb_match && us->srb != srb_match) { + scsi_unlock(us_to_host(us)); + usb_stor_dbg(us, "-- pending command mismatch\n"); return FAILED; }

@@ -445,6 +448,14 @@ static int command_abort(struct scsi_cmn return SUCCESS; }

+static int command_abort(struct scsi_cmnd *srb) +{ + struct us_data *us = host_to_us(srb->device->host); + + usb_stor_dbg(us, "%s called\n", __func__); + return command_abort_matching(us, srb); +} + /* * This invokes the transport reset mechanism to reset the state of the * device @@ -456,6 +467,9 @@ static int device_reset(struct scsi_cmnd

usb_stor_dbg(us, "%s called\n", __func__);

+ /* abort any pending command before reset */ + command_abort_matching(us, NULL); + /* lock the device pointers and do the reset */ mutex_lock(&(us->dev_mutex)); result = us->transport_reset(us);

From: Udipto Goswami quic_ugoswami@quicinc.com

commit 614ce6a2ea50068b45339257891e51e639ac9001 upstream.

When the dwc3 device is runtime suspended, various required clocks are in disabled state and it is not guaranteed that access to any registers would work. Depending on the SoC glue, a register read could be as benign as returning 0 or be fatal enough to hang the system.

In order to prevent such scenarios of fatal errors, make sure to resume dwc3 then allow the function to proceed.

Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") Cc: stable@vger.kernel.org #3.2: 30332eeefec8: debugfs: regset32: Add Runtime PM support Signed-off-by: Udipto Goswami quic_ugoswami@quicinc.com Reviewed-by: Johan Hovold johan+linaro@kernel.org Tested-by: Johan Hovold johan+linaro@kernel.org Acked-by: Thinh Nguyen Thinh.Nguyen@synopsys.com Link: https://lore.kernel.org/r/20230509144836.6803-1-quic_ugoswami@quicinc.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/dwc3/debugfs.c | 109 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+)

--- a/drivers/usb/dwc3/debugfs.c +++ b/drivers/usb/dwc3/debugfs.c @@ -327,6 +327,11 @@ static int dwc3_lsp_show(struct seq_file unsigned int current_mode; unsigned long flags; u32 reg; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); reg = dwc3_readl(dwc->regs, DWC3_GSTS); @@ -345,6 +350,8 @@ static int dwc3_lsp_show(struct seq_file } spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -390,6 +397,11 @@ static int dwc3_mode_show(struct seq_fil struct dwc3 *dwc = s->private; unsigned long flags; u32 reg; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); reg = dwc3_readl(dwc->regs, DWC3_GCTL); @@ -409,6 +421,8 @@ static int dwc3_mode_show(struct seq_fil seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg)); }

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -455,6 +469,11 @@ static int dwc3_testmode_show(struct seq struct dwc3 *dwc = s->private; unsigned long flags; u32 reg; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); reg = dwc3_readl(dwc->regs, DWC3_DCTL); @@ -485,6 +504,8 @@ static int dwc3_testmode_show(struct seq seq_printf(s, "UNKNOWN %d\n", reg); }

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -501,6 +522,7 @@ static ssize_t dwc3_testmode_write(struc unsigned long flags; u32 testmode = 0; char buf[32]; + int ret;

if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; @@ -518,10 +540,16 @@ static ssize_t dwc3_testmode_write(struc else testmode = 0;

+ ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret; + spin_lock_irqsave(&dwc->lock, flags); dwc3_gadget_set_test_mode(dwc, testmode); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return count; }

@@ -540,12 +568,18 @@ static int dwc3_link_state_show(struct s enum dwc3_link_state state; u32 reg; u8 speed; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); reg = dwc3_readl(dwc->regs, DWC3_GSTS); if (DWC3_GSTS_CURMOD(reg) != DWC3_GSTS_CURMOD_DEVICE) { seq_puts(s, "Not available\n"); spin_unlock_irqrestore(&dwc->lock, flags); + pm_runtime_put_sync(dwc->dev); return 0; }

@@ -558,6 +592,8 @@ static int dwc3_link_state_show(struct s dwc3_gadget_hs_link_string(state)); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -576,6 +612,7 @@ static ssize_t dwc3_link_state_write(str char buf[32]; u32 reg; u8 speed; + int ret;

if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; @@ -595,10 +632,15 @@ static ssize_t dwc3_link_state_write(str else return -EINVAL;

+ ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret; + spin_lock_irqsave(&dwc->lock, flags); reg = dwc3_readl(dwc->regs, DWC3_GSTS); if (DWC3_GSTS_CURMOD(reg) != DWC3_GSTS_CURMOD_DEVICE) { spin_unlock_irqrestore(&dwc->lock, flags); + pm_runtime_put_sync(dwc->dev); return -EINVAL; }

@@ -608,12 +650,15 @@ static ssize_t dwc3_link_state_write(str if (speed < DWC3_DSTS_SUPERSPEED && state != DWC3_LINK_STATE_RECOV) { spin_unlock_irqrestore(&dwc->lock, flags); + pm_runtime_put_sync(dwc->dev); return -EINVAL; }

dwc3_gadget_set_link_state(dwc, state); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return count; }

@@ -636,6 +681,11 @@ static int dwc3_tx_fifo_size_show(struct struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_TXFIFO); @@ -646,6 +696,8 @@ static int dwc3_tx_fifo_size_show(struct seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -655,6 +707,11 @@ static int dwc3_rx_fifo_size_show(struct struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_RXFIFO); @@ -665,6 +722,8 @@ static int dwc3_rx_fifo_size_show(struct seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -674,12 +733,19 @@ static int dwc3_tx_request_queue_show(st struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_TXREQQ); seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -689,12 +755,19 @@ static int dwc3_rx_request_queue_show(st struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_RXREQQ); seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -704,12 +777,19 @@ static int dwc3_rx_info_queue_show(struc struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_RXINFOQ); seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -719,12 +799,19 @@ static int dwc3_descriptor_fetch_queue_s struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_DESCFETCHQ); seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -734,12 +821,19 @@ static int dwc3_event_queue_show(struct struct dwc3 *dwc = dep->dwc; unsigned long flags; u32 val; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); val = dwc3_core_fifo_space(dep, DWC3_EVENTQ); seq_printf(s, "%u\n", val); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -785,6 +879,11 @@ static int dwc3_trb_ring_show(struct seq struct dwc3 *dwc = dep->dwc; unsigned long flags; int i; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); if (dep->number <= 1) { @@ -814,6 +913,8 @@ static int dwc3_trb_ring_show(struct seq out: spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -826,6 +927,11 @@ static int dwc3_ep_info_register_show(st u32 lower_32_bits; u32 upper_32_bits; u32 reg; + int ret; + + ret = pm_runtime_resume_and_get(dwc->dev); + if (ret < 0) + return ret;

spin_lock_irqsave(&dwc->lock, flags); reg = DWC3_GDBGLSPMUX_EPSELECT(dep->number); @@ -838,6 +944,8 @@ static int dwc3_ep_info_register_show(st seq_printf(s, "0x%016llx\n", ep_info); spin_unlock_irqrestore(&dwc->lock, flags);

+ pm_runtime_put_sync(dwc->dev); + return 0; }

@@ -899,6 +1007,7 @@ void dwc3_debugfs_init(struct dwc3 *dwc) dwc->regset->regs = dwc3_regs; dwc->regset->nregs = ARRAY_SIZE(dwc3_regs); dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START; + dwc->regset->dev = dwc->dev;

root = debugfs_create_dir(dev_name(dwc->dev), NULL); dwc->root = root;

From: Takashi Iwai tiwai@suse.de

commit 3b44ec8c5c44790a82f07e90db45643c762878c6 upstream.

get_line_out_pfx() may trigger an Oops by overflowing the static array with more than 8 channels. This was reported for MacBookPro 12,1 with Cirrus codec.

As a workaround, extend for the 9.1 channels and also fix the potential Oops by unifying the code paths accessing the same array with the proper size check.

Reported-by: Olliver Schinagl oliver@schinagl.nl Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/64d95eb0-dbdb-cff8-a8b1-988dc22b24cd@schinagl.nl Link: https://lore.kernel.org/r/20230516184412.24078-1-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/pci/hda/hda_generic.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -1147,8 +1147,8 @@ static bool path_has_mixer(struct hda_co return path && path->ctls[ctl_type]; }

-static const char * const channel_name[4] = { - "Front", "Surround", "CLFE", "Side" +static const char * const channel_name[] = { + "Front", "Surround", "CLFE", "Side", "Back", };

/* give some appropriate ctl name prefix for the given line out channel */ @@ -1174,7 +1174,7 @@ static const char *get_line_out_pfx(stru

/* multi-io channels */ if (ch >= cfg->line_outs) - return channel_name[ch]; + goto fixed_name;

switch (cfg->line_out_type) { case AUTO_PIN_SPEAKER_OUT: @@ -1226,6 +1226,7 @@ static const char *get_line_out_pfx(stru if (cfg->line_outs == 1 && !spec->multi_ios) return "Line Out";

+ fixed_name: if (ch >= ARRAY_SIZE(channel_name)) { snd_BUG(); return "PCM";

From: Ai Chao aichao@kylinos.cn

commit 90670ef774a8b6700c38ce1222e6aa263be54d5f upstream.

Add a quirk for HP EliteDesk 805 to fixup ALC3867 headset MIC no sound.

Signed-off-by: Ai Chao aichao@kylinos.cn Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230506022653.2074343-1-aichao@kylinos.cn Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+)

--- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -10342,6 +10342,7 @@ static const struct snd_pci_quirk alc662 SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800), SND_PCI_QUIRK(0x103c, 0x870c, "HP", ALC897_FIXUP_HP_HSMIC_VERB), SND_PCI_QUIRK(0x103c, 0x8719, "HP", ALC897_FIXUP_HP_HSMIC_VERB), + SND_PCI_QUIRK(0x103c, 0x872b, "HP", ALC897_FIXUP_HP_HSMIC_VERB), SND_PCI_QUIRK(0x103c, 0x873e, "HP", ALC671_FIXUP_HP_HEADSET_MIC2), SND_PCI_QUIRK(0x103c, 0x877e, "HP 288 Pro G6", ALC671_FIXUP_HP_HEADSET_MIC2), SND_PCI_QUIRK(0x103c, 0x885f, "HP 288 Pro G8", ALC671_FIXUP_HP_HEADSET_MIC2),

From: Oliver Hartkopp socketcan@hartkopp.net

commit 1db080cbdbab28752bbb1c86d64daf96253a5da1 upstream.

The control message provided by J1939 support MSG_CMSG_COMPAT but blocked recvmsg() syscalls that have set this flag, i.e. on 32bit user space on 64 bit kernels.

Link: https://github.com/hartkopp/can-isotp/issues/59 Cc: Oleksij Rempel o.rempel@pengutronix.de Suggested-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Oliver Hartkopp socketcan@hartkopp.net Tested-by: Oleksij Rempel o.rempel@pengutronix.de Acked-by: Oleksij Rempel o.rempel@pengutronix.de Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol") Link: https://lore.kernel.org/20230505110308.81087-3-mkl@pengutronix.de Cc: stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/can/j1939/socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/can/j1939/socket.c +++ b/net/can/j1939/socket.c @@ -798,7 +798,7 @@ static int j1939_sk_recvmsg(struct socke struct j1939_sk_buff_cb *skcb; int ret = 0;

- if (flags & ~(MSG_DONTWAIT | MSG_ERRQUEUE)) + if (flags & ~(MSG_DONTWAIT | MSG_ERRQUEUE | MSG_CMSG_COMPAT)) return -EINVAL;

if (flags & MSG_ERRQUEUE)

From: Jimmy Assarsson extja@kvaser.com

commit 84762d8da89d29ba842317eb842973e628c27391 upstream.

Make sure the interrupt handler is registered before enabling interrupts.

Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson extja@kvaser.com Link: https://lore.kernel.org/r/20230516134318.104279-4-extja@kvaser.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/kvaser_pciefd.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1823,6 +1823,11 @@ static int kvaser_pciefd_probe(struct pc if (err) goto err_teardown_can_ctrls;

+ err = request_irq(pcie->pci->irq, kvaser_pciefd_irq_handler, + IRQF_SHARED, KVASER_PCIEFD_DRV_NAME, pcie); + if (err) + goto err_teardown_can_ctrls; + iowrite32(KVASER_PCIEFD_SRB_IRQ_DPD0 | KVASER_PCIEFD_SRB_IRQ_DPD1, pcie->reg_base + KVASER_PCIEFD_SRB_IRQ_REG);

@@ -1843,11 +1848,6 @@ static int kvaser_pciefd_probe(struct pc iowrite32(KVASER_PCIEFD_SRB_CMD_RDB1, pcie->reg_base + KVASER_PCIEFD_SRB_CMD_REG);

- err = request_irq(pcie->pci->irq, kvaser_pciefd_irq_handler, - IRQF_SHARED, KVASER_PCIEFD_DRV_NAME, pcie); - if (err) - goto err_teardown_can_ctrls; - err = kvaser_pciefd_reg_candev(pcie); if (err) goto err_free_irq;

From: Jimmy Assarsson extja@kvaser.com

commit bf7ac55e991ca177f1ac16be51152f1ef291a4df upstream.

The listen-only bit was never cleared, causing the controller to always use listen-only mode, if previously set.

Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson extja@kvaser.com Link: https://lore.kernel.org/r/20230516134318.104279-3-extja@kvaser.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/kvaser_pciefd.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -561,6 +561,8 @@ static void kvaser_pciefd_setup_controll

if (can->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) mode |= KVASER_PCIEFD_KCAN_MODE_LOM; + else + mode &= ~KVASER_PCIEFD_KCAN_MODE_LOM;

mode |= KVASER_PCIEFD_KCAN_MODE_EEN; mode |= KVASER_PCIEFD_KCAN_MODE_EPEN;

From: Jimmy Assarsson extja@kvaser.com

commit 11164bc39459335ab93c6e99d53b7e4292fba38b upstream.

Disable interrupts in error path of probe function.

Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson extja@kvaser.com Link: https://lore.kernel.org/r/20230516134318.104279-7-extja@kvaser.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/kvaser_pciefd.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1859,6 +1859,8 @@ static int kvaser_pciefd_probe(struct pc return 0;

err_free_irq: + /* Disable PCI interrupts */ + iowrite32(0, pcie->reg_base + KVASER_PCIEFD_IEN_REG); free_irq(pcie->pci->irq, pcie);

err_teardown_can_ctrls:

From: Ilya Leoshkevich iii@linux.ibm.com

commit ed40866ec7d328b3dfb70db7e2011640a16202c3 upstream.

s390's struct statfs and struct statfs64 contain padding, which field-by-field copying does not set. Initialize the respective structs with zeros before filling them and copying them to userspace, like it's already done for the compat versions of these structs.

Found by KMSAN.

[agordeev@linux.ibm.com: fixed typo in patch description] Acked-by: Heiko Carstens hca@linux.ibm.com Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Ilya Leoshkevich iii@linux.ibm.com Reviewed-by: Andrew Morton akpm@linux-foundation.org Link: https://lore.kernel.org/r/20230504144021.808932-2-iii@linux.ibm.com Signed-off-by: Alexander Gordeev agordeev@linux.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/statfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/statfs.c +++ b/fs/statfs.c @@ -128,6 +128,7 @@ static int do_statfs_native(struct kstat if (sizeof(buf) == sizeof(*st)) memcpy(&buf, st, sizeof(*st)); else { + memset(&buf, 0, sizeof(buf)); if (sizeof buf.f_blocks == 4) { if ((st->f_blocks | st->f_bfree | st->f_bavail | st->f_bsize | st->f_frsize) & @@ -156,7 +157,6 @@ static int do_statfs_native(struct kstat buf.f_namelen = st->f_namelen; buf.f_frsize = st->f_frsize; buf.f_flags = st->f_flags; - memset(buf.f_spare, 0, sizeof(buf.f_spare)); } if (copy_to_user(p, &buf, sizeof(buf))) return -EFAULT; @@ -169,6 +169,7 @@ static int do_statfs64(struct kstatfs *s if (sizeof(buf) == sizeof(*st)) memcpy(&buf, st, sizeof(*st)); else { + memset(&buf, 0, sizeof(buf)); buf.f_type = st->f_type; buf.f_bsize = st->f_bsize; buf.f_blocks = st->f_blocks; @@ -180,7 +181,6 @@ static int do_statfs64(struct kstatfs *s buf.f_namelen = st->f_namelen; buf.f_frsize = st->f_frsize; buf.f_flags = st->f_flags; - memset(buf.f_spare, 0, sizeof(buf.f_spare)); } if (copy_to_user(p, &buf, sizeof(buf))) return -EFAULT;

From: Xiubo Li xiubli@redhat.com

commit 4cafd0400bcb6187c0d4ab4d4b0229a89ac4f8c2 upstream.

When the MClientSnap reqeust's op is not CEPH_SNAP_OP_SPLIT the request may still contain a list of 'split_realms', and we need to skip it anyway. Or it will be parsed as a corrupt snaptrace.

Cc: stable@vger.kernel.org Link: https://tracker.ceph.com/issues/61200 Reported-by: Frank Schilder frans@dtu.dk Signed-off-by: Xiubo Li xiubli@redhat.com Reviewed-by: Ilya Dryomov idryomov@gmail.com Signed-off-by: Ilya Dryomov idryomov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ceph/snap.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)

--- a/fs/ceph/snap.c +++ b/fs/ceph/snap.c @@ -1005,6 +1005,19 @@ skip_inode: continue; adjust_snap_realm_parent(mdsc, child, realm->ino); } + } else { + /* + * In the non-split case both 'num_split_inos' and + * 'num_split_realms' should be 0, making this a no-op. + * However the MDS happens to populate 'split_realms' list + * in one of the UPDATE op cases by mistake. + * + * Skip both lists just in case to ensure that 'p' is + * positioned at the start of realm info, as expected by + * ceph_update_snap_trace(). + */ + p += sizeof(u64) * num_split_inos; + p += sizeof(u64) * num_split_realms; }

/*

From: Michael Ellerman mpe@ellerman.id.au

commit 66b2ca086210732954a7790d63d35542936fc664 upstream.

It was reported that soft dirty tracking doesn't work when using the Radix MMU.

The tracking is supposed to work by clearing the soft dirty bit for a mapping and then write protecting the PTE. If/when the page is written to, a page fault occurs and the soft dirty bit is added back via pte_mkdirty(). For example in wp_page_reuse():

entry = maybe_mkwrite(pte_mkdirty(entry), vma); if (ptep_set_access_flags(vma, vmf->address, vmf->pte, entry, 1)) update_mmu_cache(vma, vmf->address, vmf->pte);

Unfortunately on radix _PAGE_SOFTDIRTY is being dropped by radix__ptep_set_access_flags(), called from ptep_set_access_flags(), meaning the soft dirty bit is not set even though the page has been written to.

Fix it by adding _PAGE_SOFTDIRTY to the set of bits that are able to be changed in radix__ptep_set_access_flags().

Fixes: b0b5e9b13047 ("powerpc/mm/radix: Add radix pte #defines") Cc: stable@vger.kernel.org # v4.7+ Reported-by: Dan Horák dan@danny.cz Link: https://lore.kernel.org/r/20230511095558.56663a50f86bdc4cd97700b7@danny.cz Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://msgid.link/20230511114224.977423-1-mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/mm/book3s64/radix_pgtable.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -1018,8 +1018,8 @@ void radix__ptep_set_access_flags(struct pte_t entry, unsigned long address, int psize) { struct mm_struct *mm = vma->vm_mm; - unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_ACCESSED | - _PAGE_RW | _PAGE_EXEC); + unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_SOFT_DIRTY | + _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC);

unsigned long change = pte_val(entry) ^ pte_val(*ptep); /*

From: Pablo Neira Ayuso pablo@netfilter.org

[ 4f16d25c68ec844299a4df6ecbb0234eaf88a935 ]

This new function combines the netlink register attribute parser and the load validation function.

This update requires to replace:

enum nft_registers sreg:8;

in many of the expression private areas otherwise compiler complains with:

error: cannot take address of bit-field ‘sreg’

when passing the register field as reference.

Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/net/netfilter/nf_tables.h | 2 +- include/net/netfilter/nf_tables_core.h | 4 +-- include/net/netfilter/nft_meta.h | 2 +- net/ipv4/netfilter/nft_dup_ipv4.c | 18 ++++++------- net/ipv6/netfilter/nft_dup_ipv6.c | 18 ++++++------- net/netfilter/nf_tables_api.c | 18 +++++++++++-- net/netfilter/nft_bitwise.c | 6 ++--- net/netfilter/nft_byteorder.c | 6 ++--- net/netfilter/nft_cmp.c | 8 +++--- net/netfilter/nft_ct.c | 5 ++-- net/netfilter/nft_dup_netdev.c | 6 ++--- net/netfilter/nft_dynset.c | 12 ++++----- net/netfilter/nft_exthdr.c | 6 ++--- net/netfilter/nft_fwd_netdev.c | 18 ++++++------- net/netfilter/nft_hash.c | 10 +++++--- net/netfilter/nft_lookup.c | 6 ++--- net/netfilter/nft_masq.c | 18 ++++++------- net/netfilter/nft_meta.c | 3 +-- net/netfilter/nft_nat.c | 35 +++++++++++--------------- net/netfilter/nft_objref.c | 6 ++--- net/netfilter/nft_payload.c | 4 +-- net/netfilter/nft_queue.c | 12 ++++----- net/netfilter/nft_range.c | 6 ++--- net/netfilter/nft_redir.c | 18 ++++++------- net/netfilter/nft_tproxy.c | 14 +++++------ 25 files changed, 129 insertions(+), 132 deletions(-)

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index ad2a52a6c478b..78181f017681b 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -208,7 +208,7 @@ int nft_parse_u32_check(const struct nlattr *attr, int max, u32 *dest); unsigned int nft_parse_register(const struct nlattr *attr); int nft_dump_register(struct sk_buff *skb, unsigned int attr, unsigned int reg);

-int nft_validate_register_load(enum nft_registers reg, unsigned int len); +int nft_parse_register_load(const struct nlattr *attr, u8 *sreg, u32 len); int nft_validate_register_store(const struct nft_ctx *ctx, enum nft_registers reg, const struct nft_data *data, diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h index 7281895fa6d99..c57ecb9e157cd 100644 --- a/include/net/netfilter/nf_tables_core.h +++ b/include/net/netfilter/nf_tables_core.h @@ -25,7 +25,7 @@ void nf_tables_core_module_exit(void);

struct nft_cmp_fast_expr { u32 data; - enum nft_registers sreg:8; + u8 sreg; u8 len; };

@@ -58,7 +58,7 @@ struct nft_payload_set { enum nft_payload_bases base:8; u8 offset; u8 len; - enum nft_registers sreg:8; + u8 sreg; u8 csum_type; u8 csum_offset; u8 csum_flags; diff --git a/include/net/netfilter/nft_meta.h b/include/net/netfilter/nft_meta.h index 07e2fd507963a..946fa8c83798e 100644 --- a/include/net/netfilter/nft_meta.h +++ b/include/net/netfilter/nft_meta.h @@ -8,7 +8,7 @@ struct nft_meta { enum nft_meta_keys key:8; union { enum nft_registers dreg:8; - enum nft_registers sreg:8; + u8 sreg; }; };

diff --git a/net/ipv4/netfilter/nft_dup_ipv4.c b/net/ipv4/netfilter/nft_dup_ipv4.c index abf89b9720940..330349b5d6a4f 100644 --- a/net/ipv4/netfilter/nft_dup_ipv4.c +++ b/net/ipv4/netfilter/nft_dup_ipv4.c @@ -13,8 +13,8 @@ #include <net/netfilter/ipv4/nf_dup_ipv4.h>

struct nft_dup_ipv4 { - enum nft_registers sreg_addr:8; - enum nft_registers sreg_dev:8; + u8 sreg_addr; + u8 sreg_dev; };

static void nft_dup_ipv4_eval(const struct nft_expr *expr, @@ -40,16 +40,16 @@ static int nft_dup_ipv4_init(const struct nft_ctx *ctx, if (tb[NFTA_DUP_SREG_ADDR] == NULL) return -EINVAL;

- priv->sreg_addr = nft_parse_register(tb[NFTA_DUP_SREG_ADDR]); - err = nft_validate_register_load(priv->sreg_addr, sizeof(struct in_addr)); + err = nft_parse_register_load(tb[NFTA_DUP_SREG_ADDR], &priv->sreg_addr, + sizeof(struct in_addr)); if (err < 0) return err;

- if (tb[NFTA_DUP_SREG_DEV] != NULL) { - priv->sreg_dev = nft_parse_register(tb[NFTA_DUP_SREG_DEV]); - return nft_validate_register_load(priv->sreg_dev, sizeof(int)); - } - return 0; + if (tb[NFTA_DUP_SREG_DEV]) + err = nft_parse_register_load(tb[NFTA_DUP_SREG_DEV], + &priv->sreg_dev, sizeof(int)); + + return err; }

static int nft_dup_ipv4_dump(struct sk_buff *skb, const struct nft_expr *expr) diff --git a/net/ipv6/netfilter/nft_dup_ipv6.c b/net/ipv6/netfilter/nft_dup_ipv6.c index 2af32200507d0..c4aa8d27e0401 100644 --- a/net/ipv6/netfilter/nft_dup_ipv6.c +++ b/net/ipv6/netfilter/nft_dup_ipv6.c @@ -13,8 +13,8 @@ #include <net/netfilter/ipv6/nf_dup_ipv6.h>

struct nft_dup_ipv6 { - enum nft_registers sreg_addr:8; - enum nft_registers sreg_dev:8; + u8 sreg_addr; + u8 sreg_dev; };

static void nft_dup_ipv6_eval(const struct nft_expr *expr, @@ -38,16 +38,16 @@ static int nft_dup_ipv6_init(const struct nft_ctx *ctx, if (tb[NFTA_DUP_SREG_ADDR] == NULL) return -EINVAL;

- priv->sreg_addr = nft_parse_register(tb[NFTA_DUP_SREG_ADDR]); - err = nft_validate_register_load(priv->sreg_addr, sizeof(struct in6_addr)); + err = nft_parse_register_load(tb[NFTA_DUP_SREG_ADDR], &priv->sreg_addr, + sizeof(struct in6_addr)); if (err < 0) return err;

- if (tb[NFTA_DUP_SREG_DEV] != NULL) { - priv->sreg_dev = nft_parse_register(tb[NFTA_DUP_SREG_DEV]); - return nft_validate_register_load(priv->sreg_dev, sizeof(int)); - } - return 0; + if (tb[NFTA_DUP_SREG_DEV]) + err = nft_parse_register_load(tb[NFTA_DUP_SREG_DEV], + &priv->sreg_dev, sizeof(int)); + + return err; }

static int nft_dup_ipv6_dump(struct sk_buff *skb, const struct nft_expr *expr) diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 7794fa4c669d6..26390fb986215 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -7432,7 +7432,7 @@ EXPORT_SYMBOL_GPL(nft_dump_register); * Validate that the input register is one of the general purpose * registers and that the length of the load is within the bounds. */ -int nft_validate_register_load(enum nft_registers reg, unsigned int len) +static int nft_validate_register_load(enum nft_registers reg, unsigned int len) { if (reg < NFT_REG_1 * NFT_REG_SIZE / NFT_REG32_SIZE) return -EINVAL; @@ -7443,7 +7443,21 @@ int nft_validate_register_load(enum nft_registers reg, unsigned int len)

return 0; } -EXPORT_SYMBOL_GPL(nft_validate_register_load); + +int nft_parse_register_load(const struct nlattr *attr, u8 *sreg, u32 len) +{ + u32 reg; + int err; + + reg = nft_parse_register(attr); + err = nft_validate_register_load(reg, len); + if (err < 0) + return err; + + *sreg = reg; + return 0; +} +EXPORT_SYMBOL_GPL(nft_parse_register_load);

/** * nft_validate_register_store - validate an expressions' register store diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c index 10e9d50e4e193..850c6b5713b43 100644 --- a/net/netfilter/nft_bitwise.c +++ b/net/netfilter/nft_bitwise.c @@ -16,7 +16,7 @@ #include <net/netfilter/nf_tables_offload.h>

struct nft_bitwise { - enum nft_registers sreg:8; + u8 sreg; enum nft_registers dreg:8; u8 len; struct nft_data mask; @@ -65,8 +65,8 @@ static int nft_bitwise_init(const struct nft_ctx *ctx,

priv->len = len;

- priv->sreg = nft_parse_register(tb[NFTA_BITWISE_SREG]); - err = nft_validate_register_load(priv->sreg, priv->len); + err = nft_parse_register_load(tb[NFTA_BITWISE_SREG], &priv->sreg, + priv->len); if (err < 0) return err;

diff --git a/net/netfilter/nft_byteorder.c b/net/netfilter/nft_byteorder.c index 12bed3f7bbc6d..0960563cd5a19 100644 --- a/net/netfilter/nft_byteorder.c +++ b/net/netfilter/nft_byteorder.c @@ -16,7 +16,7 @@ #include <net/netfilter/nf_tables.h>

struct nft_byteorder { - enum nft_registers sreg:8; + u8 sreg; enum nft_registers dreg:8; enum nft_byteorder_ops op:8; u8 len; @@ -131,14 +131,14 @@ static int nft_byteorder_init(const struct nft_ctx *ctx, return -EINVAL; }

- priv->sreg = nft_parse_register(tb[NFTA_BYTEORDER_SREG]); err = nft_parse_u32_check(tb[NFTA_BYTEORDER_LEN], U8_MAX, &len); if (err < 0) return err;

priv->len = len;

- err = nft_validate_register_load(priv->sreg, priv->len); + err = nft_parse_register_load(tb[NFTA_BYTEORDER_SREG], &priv->sreg, + priv->len); if (err < 0) return err;

diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c index ae730dba60c8e..a7c1e7c4381a1 100644 --- a/net/netfilter/nft_cmp.c +++ b/net/netfilter/nft_cmp.c @@ -17,7 +17,7 @@

struct nft_cmp_expr { struct nft_data data; - enum nft_registers sreg:8; + u8 sreg; u8 len; enum nft_cmp_ops op:8; }; @@ -86,8 +86,7 @@ static int nft_cmp_init(const struct nft_ctx *ctx, const struct nft_expr *expr, return err; }

- priv->sreg = nft_parse_register(tb[NFTA_CMP_SREG]); - err = nft_validate_register_load(priv->sreg, desc.len); + err = nft_parse_register_load(tb[NFTA_CMP_SREG], &priv->sreg, desc.len); if (err < 0) return err;

@@ -169,8 +168,7 @@ static int nft_cmp_fast_init(const struct nft_ctx *ctx, if (err < 0) return err;

- priv->sreg = nft_parse_register(tb[NFTA_CMP_SREG]); - err = nft_validate_register_load(priv->sreg, desc.len); + err = nft_parse_register_load(tb[NFTA_CMP_SREG], &priv->sreg, desc.len); if (err < 0) return err;

diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index 28991730728b9..edc6b8ae06480 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -28,7 +28,7 @@ struct nft_ct { enum ip_conntrack_dir dir:8; union { enum nft_registers dreg:8; - enum nft_registers sreg:8; + u8 sreg; }; };

@@ -600,8 +600,7 @@ static int nft_ct_set_init(const struct nft_ctx *ctx, } }

- priv->sreg = nft_parse_register(tb[NFTA_CT_SREG]); - err = nft_validate_register_load(priv->sreg, len); + err = nft_parse_register_load(tb[NFTA_CT_SREG], &priv->sreg, len); if (err < 0) goto err1;

diff --git a/net/netfilter/nft_dup_netdev.c b/net/netfilter/nft_dup_netdev.c index 6007089e1c2f7..a5b560ee0337a 100644 --- a/net/netfilter/nft_dup_netdev.c +++ b/net/netfilter/nft_dup_netdev.c @@ -14,7 +14,7 @@ #include <net/netfilter/nf_dup_netdev.h>

struct nft_dup_netdev { - enum nft_registers sreg_dev:8; + u8 sreg_dev; };

static void nft_dup_netdev_eval(const struct nft_expr *expr, @@ -40,8 +40,8 @@ static int nft_dup_netdev_init(const struct nft_ctx *ctx, if (tb[NFTA_DUP_SREG_DEV] == NULL) return -EINVAL;

- priv->sreg_dev = nft_parse_register(tb[NFTA_DUP_SREG_DEV]); - return nft_validate_register_load(priv->sreg_dev, sizeof(int)); + return nft_parse_register_load(tb[NFTA_DUP_SREG_DEV], &priv->sreg_dev, + sizeof(int)); }

static int nft_dup_netdev_dump(struct sk_buff *skb, const struct nft_expr *expr) diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c index 7f9e6c90f7271..9f064f7b31d6d 100644 --- a/net/netfilter/nft_dynset.c +++ b/net/netfilter/nft_dynset.c @@ -16,8 +16,8 @@ struct nft_dynset { struct nft_set *set; struct nft_set_ext_tmpl tmpl; enum nft_dynset_ops op:8; - enum nft_registers sreg_key:8; - enum nft_registers sreg_data:8; + u8 sreg_key; + u8 sreg_data; bool invert; u64 timeout; struct nft_expr *expr; @@ -177,8 +177,8 @@ static int nft_dynset_init(const struct nft_ctx *ctx, return err; }

- priv->sreg_key = nft_parse_register(tb[NFTA_DYNSET_SREG_KEY]); - err = nft_validate_register_load(priv->sreg_key, set->klen); + err = nft_parse_register_load(tb[NFTA_DYNSET_SREG_KEY], &priv->sreg_key, + set->klen); if (err < 0) return err;

@@ -188,8 +188,8 @@ static int nft_dynset_init(const struct nft_ctx *ctx, if (set->dtype == NFT_DATA_VERDICT) return -EOPNOTSUPP;

- priv->sreg_data = nft_parse_register(tb[NFTA_DYNSET_SREG_DATA]); - err = nft_validate_register_load(priv->sreg_data, set->dlen); + err = nft_parse_register_load(tb[NFTA_DYNSET_SREG_DATA], + &priv->sreg_data, set->dlen); if (err < 0) return err; } else if (set->flags & NFT_SET_MAP) diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c index faa0844c01fb8..f2b36b9c2b53c 100644 --- a/net/netfilter/nft_exthdr.c +++ b/net/netfilter/nft_exthdr.c @@ -20,7 +20,7 @@ struct nft_exthdr { u8 len; u8 op; enum nft_registers dreg:8; - enum nft_registers sreg:8; + u8 sreg; u8 flags; };

@@ -403,11 +403,11 @@ static int nft_exthdr_tcp_set_init(const struct nft_ctx *ctx, priv->type = nla_get_u8(tb[NFTA_EXTHDR_TYPE]); priv->offset = offset; priv->len = len; - priv->sreg = nft_parse_register(tb[NFTA_EXTHDR_SREG]); priv->flags = flags; priv->op = op;

- return nft_validate_register_load(priv->sreg, priv->len); + return nft_parse_register_load(tb[NFTA_EXTHDR_SREG], &priv->sreg, + priv->len); }

static int nft_exthdr_ipv4_init(const struct nft_ctx *ctx, diff --git a/net/netfilter/nft_fwd_netdev.c b/net/netfilter/nft_fwd_netdev.c index 3b0dcd170551b..7730409f6f091 100644 --- a/net/netfilter/nft_fwd_netdev.c +++ b/net/netfilter/nft_fwd_netdev.c @@ -18,7 +18,7 @@ #include <net/ip.h>

struct nft_fwd_netdev { - enum nft_registers sreg_dev:8; + u8 sreg_dev; };

static void nft_fwd_netdev_eval(const struct nft_expr *expr, @@ -50,8 +50,8 @@ static int nft_fwd_netdev_init(const struct nft_ctx *ctx, if (tb[NFTA_FWD_SREG_DEV] == NULL) return -EINVAL;

- priv->sreg_dev = nft_parse_register(tb[NFTA_FWD_SREG_DEV]); - return nft_validate_register_load(priv->sreg_dev, sizeof(int)); + return nft_parse_register_load(tb[NFTA_FWD_SREG_DEV], &priv->sreg_dev, + sizeof(int)); }

static int nft_fwd_netdev_dump(struct sk_buff *skb, const struct nft_expr *expr) @@ -83,8 +83,8 @@ static bool nft_fwd_netdev_offload_action(const struct nft_expr *expr) }

struct nft_fwd_neigh { - enum nft_registers sreg_dev:8; - enum nft_registers sreg_addr:8; + u8 sreg_dev; + u8 sreg_addr; u8 nfproto; };

@@ -162,8 +162,6 @@ static int nft_fwd_neigh_init(const struct nft_ctx *ctx, !tb[NFTA_FWD_NFPROTO]) return -EINVAL;

- priv->sreg_dev = nft_parse_register(tb[NFTA_FWD_SREG_DEV]); - priv->sreg_addr = nft_parse_register(tb[NFTA_FWD_SREG_ADDR]); priv->nfproto = ntohl(nla_get_be32(tb[NFTA_FWD_NFPROTO]));

switch (priv->nfproto) { @@ -177,11 +175,13 @@ static int nft_fwd_neigh_init(const struct nft_ctx *ctx, return -EOPNOTSUPP; }

- err = nft_validate_register_load(priv->sreg_dev, sizeof(int)); + err = nft_parse_register_load(tb[NFTA_FWD_SREG_DEV], &priv->sreg_dev, + sizeof(int)); if (err < 0) return err;

- return nft_validate_register_load(priv->sreg_addr, addr_len); + return nft_parse_register_load(tb[NFTA_FWD_SREG_ADDR], &priv->sreg_addr, + addr_len); }

static int nft_fwd_neigh_dump(struct sk_buff *skb, const struct nft_expr *expr) diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c index b836d550b9199..3b01ad0a02dfe 100644 --- a/net/netfilter/nft_hash.c +++ b/net/netfilter/nft_hash.c @@ -14,7 +14,7 @@ #include <linux/jhash.h>

struct nft_jhash { - enum nft_registers sreg:8; + u8 sreg; enum nft_registers dreg:8; u8 len; bool autogen_seed:1; @@ -83,7 +83,6 @@ static int nft_jhash_init(const struct nft_ctx *ctx, if (tb[NFTA_HASH_OFFSET]) priv->offset = ntohl(nla_get_be32(tb[NFTA_HASH_OFFSET]));

- priv->sreg = nft_parse_register(tb[NFTA_HASH_SREG]); priv->dreg = nft_parse_register(tb[NFTA_HASH_DREG]);

err = nft_parse_u32_check(tb[NFTA_HASH_LEN], U8_MAX, &len); @@ -94,6 +93,10 @@ static int nft_jhash_init(const struct nft_ctx *ctx,

priv->len = len;

+ err = nft_parse_register_load(tb[NFTA_HASH_SREG], &priv->sreg, len); + if (err < 0) + return err; + priv->modulus = ntohl(nla_get_be32(tb[NFTA_HASH_MODULUS])); if (priv->modulus < 1) return -ERANGE; @@ -108,8 +111,7 @@ static int nft_jhash_init(const struct nft_ctx *ctx, get_random_bytes(&priv->seed, sizeof(priv->seed)); }

- return nft_validate_register_load(priv->sreg, len) && - nft_validate_register_store(ctx, priv->dreg, NULL, + return nft_validate_register_store(ctx, priv->dreg, NULL, NFT_DATA_VALUE, sizeof(u32)); }

diff --git a/net/netfilter/nft_lookup.c b/net/netfilter/nft_lookup.c index 4eb4d076927e4..349591dabb36a 100644 --- a/net/netfilter/nft_lookup.c +++ b/net/netfilter/nft_lookup.c @@ -17,7 +17,7 @@

struct nft_lookup { struct nft_set *set; - enum nft_registers sreg:8; + u8 sreg; enum nft_registers dreg:8; bool invert; struct nft_set_binding binding; @@ -73,8 +73,8 @@ static int nft_lookup_init(const struct nft_ctx *ctx, if (IS_ERR(set)) return PTR_ERR(set);

- priv->sreg = nft_parse_register(tb[NFTA_LOOKUP_SREG]); - err = nft_validate_register_load(priv->sreg, set->klen); + err = nft_parse_register_load(tb[NFTA_LOOKUP_SREG], &priv->sreg, + set->klen); if (err < 0) return err;

diff --git a/net/netfilter/nft_masq.c b/net/netfilter/nft_masq.c index 39dc94f2491e3..c2f04885347e7 100644 --- a/net/netfilter/nft_masq.c +++ b/net/netfilter/nft_masq.c @@ -15,8 +15,8 @@

struct nft_masq { u32 flags; - enum nft_registers sreg_proto_min:8; - enum nft_registers sreg_proto_max:8; + u8 sreg_proto_min; + u8 sreg_proto_max; };

static const struct nla_policy nft_masq_policy[NFTA_MASQ_MAX + 1] = { @@ -54,19 +54,15 @@ static int nft_masq_init(const struct nft_ctx *ctx, }

if (tb[NFTA_MASQ_REG_PROTO_MIN]) { - priv->sreg_proto_min = - nft_parse_register(tb[NFTA_MASQ_REG_PROTO_MIN]); - - err = nft_validate_register_load(priv->sreg_proto_min, plen); + err = nft_parse_register_load(tb[NFTA_MASQ_REG_PROTO_MIN], + &priv->sreg_proto_min, plen); if (err < 0) return err;

if (tb[NFTA_MASQ_REG_PROTO_MAX]) { - priv->sreg_proto_max = - nft_parse_register(tb[NFTA_MASQ_REG_PROTO_MAX]); - - err = nft_validate_register_load(priv->sreg_proto_max, - plen); + err = nft_parse_register_load(tb[NFTA_MASQ_REG_PROTO_MAX], + &priv->sreg_proto_max, + plen); if (err < 0) return err; } else { diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c index dda1e55d5801a..28761430d9ee4 100644 --- a/net/netfilter/nft_meta.c +++ b/net/netfilter/nft_meta.c @@ -475,8 +475,7 @@ int nft_meta_set_init(const struct nft_ctx *ctx, return -EOPNOTSUPP; }

- priv->sreg = nft_parse_register(tb[NFTA_META_SREG]); - err = nft_validate_register_load(priv->sreg, len); + err = nft_parse_register_load(tb[NFTA_META_SREG], &priv->sreg, len); if (err < 0) return err;

diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c index 0c5bc3c37ecf4..50fbd3c1d9f19 100644 --- a/net/netfilter/nft_nat.c +++ b/net/netfilter/nft_nat.c @@ -21,10 +21,10 @@ #include <net/ip.h>

struct nft_nat { - enum nft_registers sreg_addr_min:8; - enum nft_registers sreg_addr_max:8; - enum nft_registers sreg_proto_min:8; - enum nft_registers sreg_proto_max:8; + u8 sreg_addr_min; + u8 sreg_addr_max; + u8 sreg_proto_min; + u8 sreg_proto_max; enum nf_nat_manip_type type:8; u8 family; u16 flags; @@ -154,18 +154,15 @@ static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr, priv->family = family;

if (tb[NFTA_NAT_REG_ADDR_MIN]) { - priv->sreg_addr_min = - nft_parse_register(tb[NFTA_NAT_REG_ADDR_MIN]); - err = nft_validate_register_load(priv->sreg_addr_min, alen); + err = nft_parse_register_load(tb[NFTA_NAT_REG_ADDR_MIN], + &priv->sreg_addr_min, alen); if (err < 0) return err;

if (tb[NFTA_NAT_REG_ADDR_MAX]) { - priv->sreg_addr_max = - nft_parse_register(tb[NFTA_NAT_REG_ADDR_MAX]); - - err = nft_validate_register_load(priv->sreg_addr_max, - alen); + err = nft_parse_register_load(tb[NFTA_NAT_REG_ADDR_MAX], + &priv->sreg_addr_max, + alen); if (err < 0) return err; } else { @@ -175,19 +172,15 @@ static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,

plen = FIELD_SIZEOF(struct nf_nat_range, min_addr.all); if (tb[NFTA_NAT_REG_PROTO_MIN]) { - priv->sreg_proto_min = - nft_parse_register(tb[NFTA_NAT_REG_PROTO_MIN]); - - err = nft_validate_register_load(priv->sreg_proto_min, plen); + err = nft_parse_register_load(tb[NFTA_NAT_REG_PROTO_MIN], + &priv->sreg_proto_min, plen); if (err < 0) return err;

if (tb[NFTA_NAT_REG_PROTO_MAX]) { - priv->sreg_proto_max = - nft_parse_register(tb[NFTA_NAT_REG_PROTO_MAX]); - - err = nft_validate_register_load(priv->sreg_proto_max, - plen); + err = nft_parse_register_load(tb[NFTA_NAT_REG_PROTO_MAX], + &priv->sreg_proto_max, + plen); if (err < 0) return err; } else { diff --git a/net/netfilter/nft_objref.c b/net/netfilter/nft_objref.c index 74c61278e6bd3..7032b80592b20 100644 --- a/net/netfilter/nft_objref.c +++ b/net/netfilter/nft_objref.c @@ -95,7 +95,7 @@ static const struct nft_expr_ops nft_objref_ops = {

struct nft_objref_map { struct nft_set *set; - enum nft_registers sreg:8; + u8 sreg; struct nft_set_binding binding; };

@@ -137,8 +137,8 @@ static int nft_objref_map_init(const struct nft_ctx *ctx, if (!(set->flags & NFT_SET_OBJECT)) return -EINVAL;

- priv->sreg = nft_parse_register(tb[NFTA_OBJREF_SET_SREG]); - err = nft_validate_register_load(priv->sreg, set->klen); + err = nft_parse_register_load(tb[NFTA_OBJREF_SET_SREG], &priv->sreg, + set->klen); if (err < 0) return err;

diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c index 6ed6ccef5e1ad..ce670c959a99e 100644 --- a/net/netfilter/nft_payload.c +++ b/net/netfilter/nft_payload.c @@ -564,7 +564,6 @@ static int nft_payload_set_init(const struct nft_ctx *ctx, priv->base = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_BASE])); priv->offset = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_OFFSET])); priv->len = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_LEN])); - priv->sreg = nft_parse_register(tb[NFTA_PAYLOAD_SREG]);

if (tb[NFTA_PAYLOAD_CSUM_TYPE]) csum_type = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_CSUM_TYPE])); @@ -595,7 +594,8 @@ static int nft_payload_set_init(const struct nft_ctx *ctx, } priv->csum_type = csum_type;

- return nft_validate_register_load(priv->sreg, priv->len); + return nft_parse_register_load(tb[NFTA_PAYLOAD_SREG], &priv->sreg, + priv->len); }

static int nft_payload_set_dump(struct sk_buff *skb, const struct nft_expr *expr) diff --git a/net/netfilter/nft_queue.c b/net/netfilter/nft_queue.c index 5ece0a6aa8c3c..94a4f0a5a28e4 100644 --- a/net/netfilter/nft_queue.c +++ b/net/netfilter/nft_queue.c @@ -19,10 +19,10 @@ static u32 jhash_initval __read_mostly;

struct nft_queue { - enum nft_registers sreg_qnum:8; - u16 queuenum; - u16 queues_total; - u16 flags; + u8 sreg_qnum; + u16 queuenum; + u16 queues_total; + u16 flags; };

static void nft_queue_eval(const struct nft_expr *expr, @@ -111,8 +111,8 @@ static int nft_queue_sreg_init(const struct nft_ctx *ctx, struct nft_queue *priv = nft_expr_priv(expr); int err;

- priv->sreg_qnum = nft_parse_register(tb[NFTA_QUEUE_SREG_QNUM]); - err = nft_validate_register_load(priv->sreg_qnum, sizeof(u32)); + err = nft_parse_register_load(tb[NFTA_QUEUE_SREG_QNUM], + &priv->sreg_qnum, sizeof(u32)); if (err < 0) return err;

diff --git a/net/netfilter/nft_range.c b/net/netfilter/nft_range.c index 89efcc5a533d2..e4a1c44d7f513 100644 --- a/net/netfilter/nft_range.c +++ b/net/netfilter/nft_range.c @@ -15,7 +15,7 @@ struct nft_range_expr { struct nft_data data_from; struct nft_data data_to; - enum nft_registers sreg:8; + u8 sreg; u8 len; enum nft_range_ops op:8; }; @@ -86,8 +86,8 @@ static int nft_range_init(const struct nft_ctx *ctx, const struct nft_expr *expr goto err2; }

- priv->sreg = nft_parse_register(tb[NFTA_RANGE_SREG]); - err = nft_validate_register_load(priv->sreg, desc_from.len); + err = nft_parse_register_load(tb[NFTA_RANGE_SREG], &priv->sreg, + desc_from.len); if (err < 0) goto err2;

diff --git a/net/netfilter/nft_redir.c b/net/netfilter/nft_redir.c index d75de63189b61..81a191eb5c368 100644 --- a/net/netfilter/nft_redir.c +++ b/net/netfilter/nft_redir.c @@ -14,8 +14,8 @@ #include <net/netfilter/nf_tables.h>

struct nft_redir { - enum nft_registers sreg_proto_min:8; - enum nft_registers sreg_proto_max:8; + u8 sreg_proto_min; + u8 sreg_proto_max; u16 flags; };

@@ -50,19 +50,15 @@ static int nft_redir_init(const struct nft_ctx *ctx,

plen = FIELD_SIZEOF(struct nf_nat_range, min_addr.all); if (tb[NFTA_REDIR_REG_PROTO_MIN]) { - priv->sreg_proto_min = - nft_parse_register(tb[NFTA_REDIR_REG_PROTO_MIN]); - - err = nft_validate_register_load(priv->sreg_proto_min, plen); + err = nft_parse_register_load(tb[NFTA_REDIR_REG_PROTO_MIN], + &priv->sreg_proto_min, plen); if (err < 0) return err;

if (tb[NFTA_REDIR_REG_PROTO_MAX]) { - priv->sreg_proto_max = - nft_parse_register(tb[NFTA_REDIR_REG_PROTO_MAX]); - - err = nft_validate_register_load(priv->sreg_proto_max, - plen); + err = nft_parse_register_load(tb[NFTA_REDIR_REG_PROTO_MAX], + &priv->sreg_proto_max, + plen); if (err < 0) return err; } else { diff --git a/net/netfilter/nft_tproxy.c b/net/netfilter/nft_tproxy.c index a0e30bf4a845c..db780b5985abc 100644 --- a/net/netfilter/nft_tproxy.c +++ b/net/netfilter/nft_tproxy.c @@ -13,9 +13,9 @@ #endif

struct nft_tproxy { - enum nft_registers sreg_addr:8; - enum nft_registers sreg_port:8; - u8 family; + u8 sreg_addr; + u8 sreg_port; + u8 family; };

static void nft_tproxy_eval_v4(const struct nft_expr *expr, @@ -254,15 +254,15 @@ static int nft_tproxy_init(const struct nft_ctx *ctx, }

if (tb[NFTA_TPROXY_REG_ADDR]) { - priv->sreg_addr = nft_parse_register(tb[NFTA_TPROXY_REG_ADDR]); - err = nft_validate_register_load(priv->sreg_addr, alen); + err = nft_parse_register_load(tb[NFTA_TPROXY_REG_ADDR], + &priv->sreg_addr, alen); if (err < 0) return err; }

if (tb[NFTA_TPROXY_REG_PORT]) { - priv->sreg_port = nft_parse_register(tb[NFTA_TPROXY_REG_PORT]); - err = nft_validate_register_load(priv->sreg_port, sizeof(u16)); + err = nft_parse_register_load(tb[NFTA_TPROXY_REG_PORT], + &priv->sreg_port, sizeof(u16)); if (err < 0) return err; }

From: Pablo Neira Ayuso pablo@netfilter.org

[ 08a01c11a5bb3de9b0a9c9b2685867e50eda9910 ]

This function is not used anymore by any extension, statify it.

Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/net/netfilter/nf_tables.h | 1 - net/netfilter/nf_tables_api.c | 3 +-- 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 446f70132d827..ba5f97f5c490e 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -205,7 +205,6 @@ static inline enum nft_registers nft_type_to_reg(enum nft_data_types type) }

int nft_parse_u32_check(const struct nlattr *attr, int max, u32 *dest); -unsigned int nft_parse_register(const struct nlattr *attr); int nft_dump_register(struct sk_buff *skb, unsigned int attr, unsigned int reg);

int nft_parse_register_load(const struct nlattr *attr, u8 *sreg, u32 len); diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 0ccbe8751085a..8a0095664e619 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -7393,7 +7393,7 @@ EXPORT_SYMBOL_GPL(nft_parse_u32_check); * Registers used to be 128 bit wide, these register numbers will be * mapped to the corresponding 32 bit register numbers. */ -unsigned int nft_parse_register(const struct nlattr *attr) +static unsigned int nft_parse_register(const struct nlattr *attr) { unsigned int reg;

@@ -7405,7 +7405,6 @@ unsigned int nft_parse_register(const struct nlattr *attr) return reg + NFT_REG_SIZE / NFT_REG32_SIZE - NFT_REG32_00; } } -EXPORT_SYMBOL_GPL(nft_parse_register);

/** * nft_dump_register - dump a register value to a netlink attribute

From: Pablo Neira Ayuso pablo@netfilter.org

[ 20a1452c35425b2cef76f21f8395ef069dfddfa9 ]

Add helper function to parse the set element key netlink attribute.

v4: No changes v3: New patch

[sbrivio: refactor error paths and labels; use NFT_DATA_VALUE_MAXLEN instead of sizeof(*key) in helper, value can be longer than that; rebase] Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/nf_tables_api.c | 91 +++++++++++++++++------------------ 1 file changed, 45 insertions(+), 46 deletions(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index a90bf82ea1435..13a8a78b8ee8b 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4292,11 +4292,28 @@ static int nft_setelem_parse_flags(const struct nft_set *set, return 0; }

+static int nft_setelem_parse_key(struct nft_ctx *ctx, struct nft_set *set, + struct nft_data *key, struct nlattr *attr) +{ + struct nft_data_desc desc; + int err; + + err = nft_data_init(ctx, key, NFT_DATA_VALUE_MAXLEN, &desc, attr); + if (err < 0) + return err; + + if (desc.type != NFT_DATA_VALUE || desc.len != set->klen) { + nft_data_release(key, desc.type); + return -EINVAL; + } + + return 0; +} + static int nft_get_set_elem(struct nft_ctx *ctx, struct nft_set *set, const struct nlattr *attr) { struct nlattr *nla[NFTA_SET_ELEM_MAX + 1]; - struct nft_data_desc desc; struct nft_set_elem elem; struct sk_buff *skb; uint32_t flags = 0; @@ -4315,17 +4332,11 @@ static int nft_get_set_elem(struct nft_ctx *ctx, struct nft_set *set, if (err < 0) return err;

- err = nft_data_init(ctx, &elem.key.val, sizeof(elem.key), &desc, - nla[NFTA_SET_ELEM_KEY]); + err = nft_setelem_parse_key(ctx, set, &elem.key.val, + nla[NFTA_SET_ELEM_KEY]); if (err < 0) return err;

- err = -EINVAL; - if (desc.type != NFT_DATA_VALUE || desc.len != set->klen) { - nft_data_release(&elem.key.val, desc.type); - return err; - } - priv = set->ops->get(ctx->net, set, &elem, flags); if (IS_ERR(priv)) return PTR_ERR(priv); @@ -4518,13 +4529,13 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, { struct nlattr *nla[NFTA_SET_ELEM_MAX + 1]; u8 genmask = nft_genmask_next(ctx->net); - struct nft_data_desc d1, d2; struct nft_set_ext_tmpl tmpl; struct nft_set_ext *ext, *ext2; struct nft_set_elem elem; struct nft_set_binding *binding; struct nft_object *obj = NULL; struct nft_userdata *udata; + struct nft_data_desc desc; struct nft_data data; enum nft_registers dreg; struct nft_trans *trans; @@ -4590,15 +4601,12 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, return err; }

- err = nft_data_init(ctx, &elem.key.val, sizeof(elem.key), &d1, - nla[NFTA_SET_ELEM_KEY]); + err = nft_setelem_parse_key(ctx, set, &elem.key.val, + nla[NFTA_SET_ELEM_KEY]); if (err < 0) goto err1; - err = -EINVAL; - if (d1.type != NFT_DATA_VALUE || d1.len != set->klen) - goto err2;

- nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, d1.len); + nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, set->klen); if (timeout > 0) { nft_set_ext_add(&tmpl, NFT_SET_EXT_EXPIRATION); if (timeout != set->timeout) @@ -4621,13 +4629,13 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, }

if (nla[NFTA_SET_ELEM_DATA] != NULL) { - err = nft_data_init(ctx, &data, sizeof(data), &d2, + err = nft_data_init(ctx, &data, sizeof(data), &desc, nla[NFTA_SET_ELEM_DATA]); if (err < 0) goto err2;

err = -EINVAL; - if (set->dtype != NFT_DATA_VERDICT && d2.len != set->dlen) + if (set->dtype != NFT_DATA_VERDICT && desc.len != set->dlen) goto err3;

dreg = nft_type_to_reg(set->dtype); @@ -4644,18 +4652,18 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,

err = nft_validate_register_store(&bind_ctx, dreg, &data, - d2.type, d2.len); + desc.type, desc.len); if (err < 0) goto err3;

- if (d2.type == NFT_DATA_VERDICT && + if (desc.type == NFT_DATA_VERDICT && (data.verdict.code == NFT_GOTO || data.verdict.code == NFT_JUMP)) nft_validate_state_update(ctx->net, NFT_VALIDATE_NEED); }

- nft_set_ext_add_length(&tmpl, NFT_SET_EXT_DATA, d2.len); + nft_set_ext_add_length(&tmpl, NFT_SET_EXT_DATA, desc.len); }

/* The full maximum length of userdata can exceed the maximum @@ -4738,9 +4746,9 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, kfree(elem.priv); err3: if (nla[NFTA_SET_ELEM_DATA] != NULL) - nft_data_release(&data, d2.type); + nft_data_release(&data, desc.type); err2: - nft_data_release(&elem.key.val, d1.type); + nft_data_release(&elem.key.val, NFT_DATA_VALUE); err1: return err; } @@ -4836,7 +4844,6 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set, { struct nlattr *nla[NFTA_SET_ELEM_MAX + 1]; struct nft_set_ext_tmpl tmpl; - struct nft_data_desc desc; struct nft_set_elem elem; struct nft_set_ext *ext; struct nft_trans *trans; @@ -4847,11 +4854,10 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set, err = nla_parse_nested_deprecated(nla, NFTA_SET_ELEM_MAX, attr, nft_set_elem_policy, NULL); if (err < 0) - goto err1; + return err;

- err = -EINVAL; if (nla[NFTA_SET_ELEM_KEY] == NULL) - goto err1; + return -EINVAL;

nft_set_ext_prepare(&tmpl);

@@ -4861,37 +4867,31 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set, if (flags != 0) nft_set_ext_add(&tmpl, NFT_SET_EXT_FLAGS);

- err = nft_data_init(ctx, &elem.key.val, sizeof(elem.key), &desc, - nla[NFTA_SET_ELEM_KEY]); + err = nft_setelem_parse_key(ctx, set, &elem.key.val, + nla[NFTA_SET_ELEM_KEY]); if (err < 0) - goto err1; - - err = -EINVAL; - if (desc.type != NFT_DATA_VALUE || desc.len != set->klen) - goto err2; + return err;

- nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, desc.len); + nft_set_ext_add_length(&tmpl, NFT_SET_EXT_KEY, set->klen);

err = -ENOMEM; elem.priv = nft_set_elem_init(set, &tmpl, elem.key.val.data, NULL, 0, 0, GFP_KERNEL); if (elem.priv == NULL) - goto err2; + goto fail_elem;

ext = nft_set_elem_ext(set, elem.priv); if (flags) *nft_set_ext_flags(ext) = flags;

trans = nft_trans_elem_alloc(ctx, NFT_MSG_DELSETELEM, set); - if (trans == NULL) { - err = -ENOMEM; - goto err3; - } + if (trans == NULL) + goto fail_trans;

priv = set->ops->deactivate(ctx->net, set, &elem); if (priv == NULL) { err = -ENOENT; - goto err4; + goto fail_ops; } kfree(elem.priv); elem.priv = priv; @@ -4902,13 +4902,12 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set, list_add_tail(&trans->list, &ctx->net->nft.commit_list); return 0;

-err4: +fail_ops: kfree(trans); -err3: +fail_trans: kfree(elem.priv); -err2: - nft_data_release(&elem.key.val, desc.type); -err1: +fail_elem: + nft_data_release(&elem.key.val, NFT_DATA_VALUE); return err; }

From: Pablo Neira Ayuso pablo@netfilter.org

[ 7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6 ]

Make sure element data type and length do not mismatch the one specified by the set declaration.

Fixes: 7d7402642eaf ("netfilter: nf_tables: variable sized set element keys / data") Reported-by: Hugues ANGUELKOV hanguelkov@randorisec.fr Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/nf_tables_api.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 8648b3ced6221..c82c4635c0a96 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4315,13 +4315,20 @@ static int nft_setelem_parse_data(struct nft_ctx *ctx, struct nft_set *set, struct nft_data *data, struct nlattr *attr) { + u32 dtype; int err;

err = nft_data_init(ctx, data, NFT_DATA_VALUE_MAXLEN, desc, attr); if (err < 0) return err;

- if (desc->type != NFT_DATA_VERDICT && desc->len != set->dlen) { + if (set->dtype == NFT_DATA_VERDICT) + dtype = NFT_DATA_VERDICT; + else + dtype = NFT_DATA_VALUE; + + if (dtype != desc->type || + set->dlen != desc->len) { nft_data_release(data, desc->type); return -EINVAL; }

From: Pablo Neira Ayuso pablo@netfilter.org

[ 3923b1e4406680d57da7e873da77b1683035d83f ]

clean_net() runs in workqueue while walking over the lists, grab mutex.

Fixes: 767d1216bff8 ("netfilter: nftables: fix possible UAF over chains from packet path in netns") Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/nf_tables_api.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index e4eef4947cc75..909076ef157e8 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -7866,7 +7866,9 @@ static int __net_init nf_tables_init_net(struct net *net)

static void __net_exit nf_tables_pre_exit_net(struct net *net) { + mutex_lock(&net->nft.commit_mutex); __nft_release_hooks(net); + mutex_unlock(&net->nft.commit_mutex); }

static void __net_exit nf_tables_exit_net(struct net *net)

From: Ping Cheng pinglinux@gmail.com

commit 0627f3df95e1609693f89e7ceb4156ac5db6e358 upstream.

Add the new PIDs to wacom_wac.c to support the new model in the Intuos Pro series.

Signed-off-by: Ping Cheng ping.cheng@wacom.com Tested-by: Aaron Armstrong Skomra aaron.skomra@wacom.com Signed-off-by: Jiri Kosina jkosina@suse.cz Cc: Ping Cheng pinglinux@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/wacom_wac.c | 5 +++++ 1 file changed, 5 insertions(+)

--- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -4840,6 +4840,10 @@ static const struct wacom_features wacom static const struct wacom_features wacom_features_0x3c8 = { "Wacom Intuos BT M", 21600, 13500, 4095, 63, INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 }; +static const struct wacom_features wacom_features_0x3dd = + { "Wacom Intuos Pro S", 31920, 19950, 8191, 63, + INTUOSP2S_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7, + .touch_max = 10 };

static const struct wacom_features wacom_features_HID_ANY_ID = { "Wacom HID", .type = HID_GENERIC, .oVid = HID_ANY_ID, .oPid = HID_ANY_ID }; @@ -5019,6 +5023,7 @@ const struct hid_device_id wacom_ids[] = { BT_DEVICE_WACOM(0x393) }, { BT_DEVICE_WACOM(0x3c6) }, { BT_DEVICE_WACOM(0x3c8) }, + { BT_DEVICE_WACOM(0x3dd) }, { USB_DEVICE_WACOM(0x4001) }, { USB_DEVICE_WACOM(0x4004) }, { USB_DEVICE_WACOM(0x5000) },

From: Vadim Pasternak vadimp@mellanox.com

[ Upstream commit 58eeba0bdb52afe5c18ce2a760ca9fe2901943e9 ]

Provide the helpers for string conversions to upper and lower cases.

Signed-off-by: Vadim Pasternak vadimp@mellanox.com Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Stable-dep-of: 3c0f4f09c063 ("usb: gadget: u_ether: Fix host MAC address case") Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/string_helpers.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+)

diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h index c289551322342..86f150c2a6b66 100644 --- a/include/linux/string_helpers.h +++ b/include/linux/string_helpers.h @@ -2,6 +2,7 @@ #ifndef _LINUX_STRING_HELPERS_H_ #define _LINUX_STRING_HELPERS_H_

+#include <linux/ctype.h> #include <linux/types.h>

struct file; @@ -75,6 +76,20 @@ static inline int string_escape_str_any_np(const char *src, char *dst, return string_escape_str(src, dst, sz, ESCAPE_ANY_NP, only); }

+static inline void string_upper(char *dst, const char *src) +{ + do { + *dst++ = toupper(*src); + } while (*src++); +} + +static inline void string_lower(char *dst, const char *src) +{ + do { + *dst++ = tolower(*src); + } while (*src++); +} + char *kstrdup_quotable(const char *src, gfp_t gfp); char *kstrdup_quotable_cmdline(struct task_struct *task, gfp_t gfp); char *kstrdup_quotable_file(struct file *file, gfp_t gfp);

From: Konrad Gräfe k.graefe@gateware.de

[ Upstream commit 3c0f4f09c063e143822393d99cb2b19a85451c07 ]

The CDC-ECM specification [1] requires to send the host MAC address as an uppercase hexadecimal string in chapter "5.4 Ethernet Networking Functional Descriptor": The Unicode character is chosen from the set of values 30h through 39h and 41h through 46h (0-9 and A-F).

However, snprintf(.., "%pm", ..) generates a lowercase MAC address string. While most host drivers are tolerant to this, UsbNcm.sys on Windows 10 is not. Instead it uses a different MAC address with all bytes set to zero including and after the first byte containing a lowercase letter. On Windows 11 Microsoft fixed it, but apparently they did not backport the fix.

This change fixes the issue by upper-casing the MAC to comply with the specification.

[1]: https://www.usb.org/document-library/class-definitions-communication-devices..., file ECM120.pdf

Fixes: bcd4a1c40bee ("usb: gadget: u_ether: construct with default values and add setters/getters") Cc: stable@vger.kernel.org Signed-off-by: Konrad Gräfe k.graefe@gateware.de Link: https://lore.kernel.org/r/20230505143640.443014-1-k.graefe@gateware.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/gadget/function/u_ether.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index d9f9c7a678d8b..af3cb3bfdc29a 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -17,6 +17,7 @@ #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/if_vlan.h> +#include <linux/string_helpers.h> #include <linux/usb/composite.h>

#include "u_ether.h" @@ -940,6 +941,8 @@ int gether_get_host_addr_cdc(struct net_device *net, char *host_addr, int len) dev = netdev_priv(net); snprintf(host_addr, len, "%pm", dev->host_mac);

+ string_upper(host_addr, host_addr); + return strlen(host_addr); } EXPORT_SYMBOL_GPL(gether_get_host_addr_cdc);

From: George Kennedy george.kennedy@oracle.com

[ Upstream commit 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 ]

After a call to console_unlock() in vcs_write() the vc_data struct can be freed by vc_port_destruct(). Because of that, the struct vc_data pointer must be reloaded in the while loop in vcs_write() after console_lock() to avoid a UAF when vcs_size() is called.

Syzkaller reported a UAF in vcs_size().

BUG: KASAN: slab-use-after-free in vcs_size (drivers/tty/vt/vc_screen.c:215) Read of size 4 at addr ffff8880beab89a8 by task repro_vcs_size/4119

Call Trace: <TASK> __asan_report_load4_noabort (mm/kasan/report_generic.c:380) vcs_size (drivers/tty/vt/vc_screen.c:215) vcs_write (drivers/tty/vt/vc_screen.c:664) vfs_write (fs/read_write.c:582 fs/read_write.c:564) ... <TASK>

Allocated by task 1213: kmalloc_trace (mm/slab_common.c:1064) vc_allocate (./include/linux/slab.h:559 ./include/linux/slab.h:680 drivers/tty/vt/vt.c:1078 drivers/tty/vt/vt.c:1058) con_install (drivers/tty/vt/vt.c:3334) tty_init_dev (drivers/tty/tty_io.c:1303 drivers/tty/tty_io.c:1415 drivers/tty/tty_io.c:1392) tty_open (drivers/tty/tty_io.c:2082 drivers/tty/tty_io.c:2128) chrdev_open (fs/char_dev.c:415) do_dentry_open (fs/open.c:921) vfs_open (fs/open.c:1052) ...

Freed by task 4116: kfree (mm/slab_common.c:1016) vc_port_destruct (drivers/tty/vt/vt.c:1044) tty_port_destructor (drivers/tty/tty_port.c:296) tty_port_put (drivers/tty/tty_port.c:312) vt_disallocate_all (drivers/tty/vt/vt_ioctl.c:662 (discriminator 2)) vt_ioctl (drivers/tty/vt/vt_ioctl.c:903) tty_ioctl (drivers/tty/tty_io.c:2778) ...

The buggy address belongs to the object at ffff8880beab8800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 424 bytes inside of freed 1024-byte region [ffff8880beab8800, ffff8880beab8c00)

The buggy address belongs to the physical page: page:00000000afc77580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xbeab8 head:00000000afc77580 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfffffc0010200(slab|head|node=0|zone=1|lastcpupid=0x1fffff) page_type: 0xffffffff() raw: 000fffffc0010200 ffff888100042dc0 ffffea000426de00 dead000000000002 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected

Memory state around the buggy address: ffff8880beab8880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880beab8900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

ffff8880beab8980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

^ ffff8880beab8a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880beab8a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Disabling lock debugging due to kernel taint

Fixes: ac751efa6a0d ("console: rename acquire/release_console_sem() to console_lock/unlock()") Cc: stable stable@kernel.org Reported-by: syzkaller syzkaller@googlegroups.com Signed-off-by: George Kennedy george.kennedy@oracle.com Reviewed-by: Thomas Weißschuh linux@weissschuh.net Link: https://lore.kernel.org/r/1683889728-10411-1-git-send-email-george.kennedy@o... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/vt/vc_screen.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index 48d74269f1d59..a6813e3393ece 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -523,10 +523,17 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) } }

- /* The vcs_size might have changed while we slept to grab - * the user buffer, so recheck. + /* The vc might have been freed or vcs_size might have changed + * while we slept to grab the user buffer, so recheck. * Return data written up to now on failure. */ + vc = vcs_vc(inode, &viewed); + if (!vc) { + if (written) + break; + ret = -ENXIO; + goto unlock_out; + } size = vcs_size(vc, attr, false); if (size < 0) { if (written)

From: Heiko Carstens hca@linux.ibm.com

[ Upstream commit 2862a2fdfae875888e3c1c3634e3422e01d98147 ]

Use "a" constraint instead of "d" constraint to pass the state parameter to the do_sqbs() inline assembly. This prevents that general purpose register zero is used for the state parameter.

If the compiler would select general purpose register zero this would be problematic for the used instruction in rsy format: the register used for the state parameter is a base register. If the base register is general purpose register zero the contents of the register are unexpectedly ignored when the instruction is executed.

This only applies to z/VM guests using QIOASSIST with dedicated (pass through) QDIO-based devices such as FCP [zfcp driver] as well as real OSA or HiperSockets [qeth driver].

A possible symptom for this case using zfcp is the following repeating kernel message pattern:

zfcp <devbusid>: A QDIO problem occurred zfcp <devbusid>: A QDIO problem occurred zfcp <devbusid>: qdio: ZFCP on SC <sc> using AI:1 QEBSM:1 PRI:1 TDD:1 SIGA: W zfcp <devbusid>: A QDIO problem occurred zfcp <devbusid>: A QDIO problem occurred

Each of the qdio problem message can be accompanied by the following entries for the affected subchannel <sc> in /sys/kernel/debug/s390dbf/qdio_error/hex_ascii for zfcp or qeth:

<sc> ccq: 69.... <sc> SQBS ERROR.

Reviewed-by: Benjamin Block bblock@linux.ibm.com Cc: Steffen Maier maier@linux.ibm.com Fixes: 8129ee164267 ("[PATCH] s390: qdio V=V pass-through") Cc: stable@vger.kernel.org Signed-off-by: Heiko Carstens hca@linux.ibm.com Signed-off-by: Alexander Gordeev agordeev@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/s390/cio/qdio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index e91d2a589957c..c78651be8d139 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -95,7 +95,7 @@ static inline int do_sqbs(u64 token, unsigned char state, int queue, " lgr 1,%[token]\n" " .insn rsy,0xeb000000008a,%[qs],%[ccq],0(%[state])" : [ccq] "+&d" (_ccq), [qs] "+&d" (_queuestart) - : [state] "d" ((unsigned long)state), [token] "d" (token) + : [state] "a" ((unsigned long)state), [token] "d" (token) : "memory", "cc", "1"); *count = _ccq & 0xff; *start = _queuestart & 0xff;

From: Christophe Leroy christophe.leroy@csgroup.eu

(backported from upstream 8a5299a1278eadf1e08a598a5345c376206f171e)

For different reasons, fsl-spi driver performs bits_per_word modifications for different reasons: - On CPU mode, to minimise amount of interrupts - On CPM/QE mode to work around controller byte order

For CPU mode that's done in fsl_spi_prepare_message() while for CPM mode that's done in fsl_spi_setup_transfer().

Reunify all of it in fsl_spi_prepare_message(), and catch impossible cases early through master's bits_per_word_mask instead of returning EINVAL later.

Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Link: https://lore.kernel.org/r/0ce96fe96e8b07cba0613e4097cfd94d09b8919a.168037180... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/spi/spi-fsl-spi.c | 50 +++++++++++++++++++++------------------------- 1 file changed, 23 insertions(+), 27 deletions(-)

--- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -204,26 +204,6 @@ static int mspi_apply_cpu_mode_quirks(st return bits_per_word; }

-static int mspi_apply_qe_mode_quirks(struct spi_mpc8xxx_cs *cs, - struct spi_device *spi, - int bits_per_word) -{ - /* CPM/QE uses Little Endian for words > 8 - * so transform 16 and 32 bits words into 8 bits - * Unfortnatly that doesn't work for LSB so - * reject these for now */ - /* Note: 32 bits word, LSB works iff - * tfcr/rfcr is set to CPMFCR_GBL */ - if (spi->mode & SPI_LSB_FIRST && - bits_per_word > 8) - return -EINVAL; - if (bits_per_word <= 8) - return bits_per_word; - if (bits_per_word == 16 || bits_per_word == 32) - return 8; /* pretend its 8 bits */ - return -EINVAL; -} - static int fsl_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) { @@ -251,9 +231,6 @@ static int fsl_spi_setup_transfer(struct bits_per_word = mspi_apply_cpu_mode_quirks(cs, spi, mpc8xxx_spi, bits_per_word); - else - bits_per_word = mspi_apply_qe_mode_quirks(cs, spi, - bits_per_word);

if (bits_per_word < 0) return bits_per_word; @@ -371,14 +348,27 @@ static int fsl_spi_do_one_msg(struct spi * In CPU mode, optimize large byte transfers to use larger * bits_per_word values to reduce number of interrupts taken. */ - if (!(mpc8xxx_spi->flags & SPI_CPM_MODE)) { - list_for_each_entry(t, &m->transfers, transfer_list) { + list_for_each_entry(t, &m->transfers, transfer_list) { + if (!(mpc8xxx_spi->flags & SPI_CPM_MODE)) { if (t->len < 256 || t->bits_per_word != 8) continue; if ((t->len & 3) == 0) t->bits_per_word = 32; else if ((t->len & 1) == 0) t->bits_per_word = 16; + } else { + /* + * CPM/QE uses Little Endian for words > 8 + * so transform 16 and 32 bits words into 8 bits + * Unfortnatly that doesn't work for LSB so + * reject these for now + * Note: 32 bits word, LSB works iff + * tfcr/rfcr is set to CPMFCR_GBL + */ + if (m->spi->mode & SPI_LSB_FIRST && t->bits_per_word > 8) + return -EINVAL; + if (t->bits_per_word == 16 || t->bits_per_word == 32) + t->bits_per_word = 8; /* pretend its 8 bits */ } }

@@ -637,8 +627,14 @@ static struct spi_master * fsl_spi_probe if (mpc8xxx_spi->type == TYPE_GRLIB) fsl_spi_grlib_probe(dev);

- master->bits_per_word_mask = - (SPI_BPW_RANGE_MASK(4, 16) | SPI_BPW_MASK(32)) & + if (mpc8xxx_spi->flags & SPI_CPM_MODE) + master->bits_per_word_mask = + (SPI_BPW_RANGE_MASK(4, 8) | SPI_BPW_MASK(16) | SPI_BPW_MASK(32)); + else + master->bits_per_word_mask = + (SPI_BPW_RANGE_MASK(4, 16) | SPI_BPW_MASK(32)); + + master->bits_per_word_mask &= SPI_BPW_RANGE_MASK(1, mpc8xxx_spi->max_bits_per_word);

if (mpc8xxx_spi->flags & SPI_QE_CPU_MODE)

From: Pablo Greco pgreco@centosproject.org

commit f53300fdaa84dc02f96ab9446b5bac4d20016c43 upstream.

Some compilers (tested with 4.8.5 from CentOS 7) fail properly process FIELD_GET inside an inline function, which ends up in a BUILD_BUG_ON. Convert inline function to a macro.

Fixes commit bf92e7685100 ("mt76: mt7615: add support for per-chain signal strength reporting") Reported in https://lkml.org/lkml/2019/9/21/146

Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Pablo Greco pgreco@centosproject.org Signed-off-by: Felix Fietkau nbd@nbd.name Cc: Vegard Nossum vegard.nossum@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -13,10 +13,7 @@ #include "../dma.h" #include "mac.h"

-static inline s8 to_rssi(u32 field, u32 rxv) -{ - return (FIELD_GET(field, rxv) - 220) / 2; -} +#define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2)

static struct mt76_wcid *mt7615_rx_get_wcid(struct mt7615_dev *dev, u8 idx, bool unicast)

From: Bin Li bin.li@canonical.com

commit 4ca110cab46561cd74a2acd9b447435acb4bec5f upstream.

Lenovo M70/M90 Gen4 are equipped with ALC897, and they need ALC897_FIXUP_HEADSET_MIC_PIN quirk to make its headset mic work. The previous quirk for M70/M90 is for Gen3.

Signed-off-by: Bin Li bin.li@canonical.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230524113755.1346928-1-bin.li@canonical.com Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/pci/hda/patch_realtek.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -10370,6 +10370,8 @@ static const struct snd_pci_quirk alc662 SND_PCI_QUIRK(0x17aa, 0x32cb, "Lenovo ThinkCentre M70", ALC897_FIXUP_HEADSET_MIC_PIN), SND_PCI_QUIRK(0x17aa, 0x32cf, "Lenovo ThinkCentre M950", ALC897_FIXUP_HEADSET_MIC_PIN), SND_PCI_QUIRK(0x17aa, 0x32f7, "Lenovo ThinkCentre M90", ALC897_FIXUP_HEADSET_MIC_PIN), + SND_PCI_QUIRK(0x17aa, 0x3321, "Lenovo ThinkCentre M70 Gen4", ALC897_FIXUP_HEADSET_MIC_PIN), + SND_PCI_QUIRK(0x17aa, 0x331b, "Lenovo ThinkCentre M90 Gen4", ALC897_FIXUP_HEADSET_MIC_PIN), SND_PCI_QUIRK(0x17aa, 0x3742, "Lenovo TianYi510Pro-14IOB", ALC897_FIXUP_HEADSET_MIC_PIN2), SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Ideapad Y550", ALC662_FIXUP_IDEAPAD),

From: Helge Deller deller@gmx.de

commit 6888ff04e37d01295620a73f3f7efbc79f6ef152 upstream.

The kernel kgdb break instructions should only be handled when running in kernel context.

Cc: stable@vger.kernel.org # v5.4+ Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/parisc/kernel/traps.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -305,8 +305,8 @@ static void handle_break(struct pt_regs #endif

#ifdef CONFIG_KGDB - if (unlikely(iir == PARISC_KGDB_COMPILED_BREAK_INSN || - iir == PARISC_KGDB_BREAK_INSN)) { + if (unlikely((iir == PARISC_KGDB_COMPILED_BREAK_INSN || + iir == PARISC_KGDB_BREAK_INSN)) && !user_mode(regs)) { kgdb_handle_exception(9, SIGTRAP, 0, regs); return; }

From: Zev Weiss zev@bewilderbeest.net

commit 0a1bb16e0fe6650c3841e611de374bfd5578ad70 upstream.

This driver's debugfs files have had a read operation since commit 2a9e27408e12 ("gpio: mockup: rework debugfs interface"), but were still being created with write-only mode bits. Update them to indicate that the files can also be read.

Signed-off-by: Zev Weiss zev@bewilderbeest.net Fixes: 2a9e27408e12 ("gpio: mockup: rework debugfs interface") Cc: stable@kernel.org # v5.1+ Signed-off-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpio/gpio-mockup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -339,7 +339,7 @@ static void gpio_mockup_debugfs_setup(st priv->offset = i; priv->desc = &gc->gpiodev->descs[i];

- debugfs_create_file(name, 0200, chip->dbg_dir, priv, + debugfs_create_file(name, 0600, chip->dbg_dir, priv, &gpio_mockup_debugfs_ops); }

From: Dave Hansen dave.hansen@linux.intel.com

commit ce0b15d11ad837fbacc5356941712218e38a0a83 upstream.

The INVLPG instruction is used to invalidate TLB entries for a specified virtual address. When PCIDs are enabled, INVLPG is supposed to invalidate TLB entries for the specified address for both the current PCID *and* Global entries. (Note: Only kernel mappings set Global=1.)

Unfortunately, some INVLPG implementations can leave Global translations unflushed when PCIDs are enabled.

As a workaround, never enable PCIDs on affected processors.

I expect there to eventually be microcode mitigations to replace this software workaround. However, the exact version numbers where that will happen are not known today. Once the version numbers are set in stone, the processor list can be tweaked to only disable PCIDs on affected processors with affected microcode.

Note: if anyone wants a quick fix that doesn't require patching, just stick 'nopcid' on your kernel command-line.

Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Reviewed-by: Thomas Gleixner tglx@linutronix.de Cc: stable@vger.kernel.org Signed-off-by: Daniel Sneddon daniel.sneddon@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/include/asm/intel-family.h | 5 +++++ arch/x86/mm/init.c | 25 +++++++++++++++++++++++++ 2 files changed, 30 insertions(+)

--- a/arch/x86/include/asm/intel-family.h +++ b/arch/x86/include/asm/intel-family.h @@ -96,6 +96,11 @@ #define INTEL_FAM6_LAKEFIELD 0x8A #define INTEL_FAM6_ALDERLAKE 0x97 #define INTEL_FAM6_ALDERLAKE_L 0x9A +#define INTEL_FAM6_ALDERLAKE_N 0xBE + +#define INTEL_FAM6_RAPTORLAKE 0xB7 +#define INTEL_FAM6_RAPTORLAKE_P 0xBA +#define INTEL_FAM6_RAPTORLAKE_S 0xBF

/* "Small Core" Processors (Atom) */

--- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -9,6 +9,7 @@ #include <linux/sched/task.h>

#include <asm/set_memory.h> +#include <asm/cpu_device_id.h> #include <asm/e820/api.h> #include <asm/init.h> #include <asm/page.h> @@ -208,6 +209,24 @@ static void __init probe_page_size_mask( } }

+#define INTEL_MATCH(_model) { .vendor = X86_VENDOR_INTEL, \ + .family = 6, \ + .model = _model, \ + } +/* + * INVLPG may not properly flush Global entries + * on these CPUs when PCIDs are enabled. + */ +static const struct x86_cpu_id invlpg_miss_ids[] = { + INTEL_MATCH(INTEL_FAM6_ALDERLAKE ), + INTEL_MATCH(INTEL_FAM6_ALDERLAKE_L ), + INTEL_MATCH(INTEL_FAM6_ALDERLAKE_N ), + INTEL_MATCH(INTEL_FAM6_RAPTORLAKE ), + INTEL_MATCH(INTEL_FAM6_RAPTORLAKE_P), + INTEL_MATCH(INTEL_FAM6_RAPTORLAKE_S), + {} +}; + static void setup_pcid(void) { if (!IS_ENABLED(CONFIG_X86_64)) @@ -216,6 +235,12 @@ static void setup_pcid(void) if (!boot_cpu_has(X86_FEATURE_PCID)) return;

+ if (x86_match_cpu(invlpg_miss_ids)) { + pr_info("Incomplete global flushes, disabling PCID"); + setup_clear_cpu_cap(X86_FEATURE_PCID); + return; + } + if (boot_cpu_has(X86_FEATURE_PGE)) { /* * This can't be cr4_set_bits_and_update_boot() -- the

From: Helge Deller deller@gmx.de

commit 61e150fb310729c98227a5edf6e4a3619edc3702 upstream.

Since at least kernel 6.1, flush_dcache_page() is called with IRQs disabled, e.g. from aio_complete().

But the current implementation for flush_dcache_page() on parisc unintentionally re-enables IRQs, which may lead to deadlocks.

Fix it by using xa_lock_irqsave() and xa_unlock_irqrestore() for the flush_dcache_mmap_*lock() macros instead.

Cc: linux-parisc@vger.kernel.org Cc: stable@kernel.org # 5.18+ Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/parisc/include/asm/cacheflush.h | 5 +++++ arch/parisc/kernel/cache.c | 5 +++-- 2 files changed, 8 insertions(+), 2 deletions(-)

--- a/arch/parisc/include/asm/cacheflush.h +++ b/arch/parisc/include/asm/cacheflush.h @@ -57,6 +57,11 @@ extern void flush_dcache_page(struct pag

#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) +#define flush_dcache_mmap_lock_irqsave(mapping, flags) \ + xa_lock_irqsave(&mapping->i_pages, flags) +#define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \ + xa_unlock_irqrestore(&mapping->i_pages, flags) +

#define flush_icache_page(vma,page) do { \ flush_kernel_dcache_page(page); \ --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -328,6 +328,7 @@ void flush_dcache_page(struct page *page struct vm_area_struct *mpnt; unsigned long offset; unsigned long addr, old_addr = 0; + unsigned long flags; pgoff_t pgoff;

if (mapping && !mapping_mapped(mapping)) { @@ -347,7 +348,7 @@ void flush_dcache_page(struct page *page * declared as MAP_PRIVATE or MAP_SHARED), so we only need * to flush one address here for them all to become coherent */

- flush_dcache_mmap_lock(mapping); + flush_dcache_mmap_lock_irqsave(mapping, flags); vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) { offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT; addr = mpnt->vm_start + offset; @@ -370,7 +371,7 @@ void flush_dcache_page(struct page *page old_addr = addr; } } - flush_dcache_mmap_unlock(mapping); + flush_dcache_mmap_unlock_irqrestore(mapping, flags); } EXPORT_SYMBOL(flush_dcache_page);

From: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp

commit eb799279fb1f9c63c520fe8c1c41cb9154252db6 upstream.

syzbot is reporting a lockdep warning in fill_pool() because the allocation from debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM) and therefore tries to wake up kswapd, which acquires kswapd_wait::lock.

Since fill_pool() might be called with arbitrary locks held, fill_pool() should not assume that acquiring kswapd_wait::lock is safe.

Use __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for !__GFP_DIRECT_RECLAIM allocation.

Fixes: 3ac7fe5a4aab ("infrastructure to debug (dynamic) objects") Reported-by: syzbot syzbot+fe0c72f0ccbb93786380@syzkaller.appspotmail.com Signed-off-by: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Thomas Gleixner tglx@linutronix.de Link: https://lore.kernel.org/r/6577e1fa-b6ee-f2be-2414-a2b51b1c5e30@I-love.SAKURA... Closes: https://syzkaller.appspot.com/bug?extid=fe0c72f0ccbb93786380 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- lib/debugobjects.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -128,7 +128,7 @@ static const char *obj_states[ODEBUG_STA

static void fill_pool(void) { - gfp_t gfp = GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; + gfp_t gfp = __GFP_HIGH | __GFP_NOWARN; struct debug_obj *obj; unsigned long flags;

From: Taehee Yoo ap420073@gmail.com

commit ae9b15fbe63447bc1d3bba3769f409d17ca6fdf6 upstream.

When the virtual interface's feature is updated, it synchronizes the updated feature for its own lower interface. This propagation logic should be worked as the iteration, not recursively. But it works recursively due to the netdev notification unexpectedly. This problem occurs when it disables LRO only for the team and bonding interface type.

team0 | +------+------+-----+-----+ | | | | | team1 team2 team3 ... team200

If team0's LRO feature is updated, it generates the NETDEV_FEAT_CHANGE event to its own lower interfaces(team1 ~ team200). It is worked by netdev_sync_lower_features(). So, the NETDEV_FEAT_CHANGE notification logic of each lower interface work iteratively. But generated NETDEV_FEAT_CHANGE event is also sent to the upper interface too. upper interface(team0) generates the NETDEV_FEAT_CHANGE event for its own lower interfaces again. lower and upper interfaces receive this event and generate this event again and again. So, the stack overflow occurs.

But it is not the infinite loop issue. Because the netdev_sync_lower_features() updates features before generating the NETDEV_FEAT_CHANGE event. Already synchronized lower interfaces skip notification logic. So, it is just the problem that iteration logic is changed to the recursive unexpectedly due to the notification mechanism.

Reproducer:

ip link add team0 type team ethtool -K team0 lro on for i in {1..200} do ip link add team$i master team0 type team ethtool -K team$i lro on done

ethtool -K team0 lro off

In order to fix it, the notifier_ctx member of bonding/team is introduced.

Reported-by: syzbot+60748c96cf5c6df8e581@syzkaller.appspotmail.com Fixes: fd867d51f889 ("net/core: generic support for disabling netdev features down stack") Signed-off-by: Taehee Yoo ap420073@gmail.com Reviewed-by: Eric Dumazet edumazet@google.com Reviewed-by: Nikolay Aleksandrov razor@blackwall.org Link: https://lore.kernel.org/r/20230517143010.3596250-1-ap420073@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/bonding/bond_main.c | 8 +++++++- drivers/net/team/team.c | 7 ++++++- include/linux/if_team.h | 1 + include/net/bonding.h | 1 + 4 files changed, 15 insertions(+), 2 deletions(-)

--- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3239,7 +3239,11 @@ static int bond_slave_netdev_event(unsig unblock_netpoll_tx(); break; case NETDEV_FEAT_CHANGE: - bond_compute_features(bond); + if (!bond->notifier_ctx) { + bond->notifier_ctx = true; + bond_compute_features(bond); + bond->notifier_ctx = false; + } break; case NETDEV_RESEND_IGMP: /* Propagate to master device */ @@ -4878,6 +4882,8 @@ static int bond_init(struct net_device * if (!bond->wq) return -ENOMEM;

+ bond->notifier_ctx = false; + spin_lock_init(&bond->stats_lock); lockdep_register_key(&bond->stats_lock_key); lockdep_set_class(&bond->stats_lock, &bond->stats_lock_key); --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1624,6 +1624,7 @@ static int team_init(struct net_device *

team->dev = dev; team_set_no_mode(team); + team->notifier_ctx = false;

team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); if (!team->pcpu_stats) @@ -3015,7 +3016,11 @@ static int team_device_event(struct noti team_del_slave(port->team->dev, dev); break; case NETDEV_FEAT_CHANGE: - team_compute_features(port->team); + if (!port->team->notifier_ctx) { + port->team->notifier_ctx = true; + team_compute_features(port->team); + port->team->notifier_ctx = false; + } break; case NETDEV_PRECHANGEMTU: /* Forbid to change mtu of underlaying device */ --- a/include/linux/if_team.h +++ b/include/linux/if_team.h @@ -211,6 +211,7 @@ struct team { bool queue_override_enabled; struct list_head *qom_lists; /* array of queue override mapping lists */ bool port_mtu_change_allowed; + bool notifier_ctx; struct { unsigned int count; unsigned int interval; /* in ms */ --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -207,6 +207,7 @@ struct bonding { struct slave __rcu *primary_slave; struct bond_up_slave __rcu *usable_slaves; /* Array of usable slaves */ bool force_primary; + bool notifier_ctx; s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ int (*recv_probe)(const struct sk_buff *, struct bonding *, struct slave *);

From: Alan Stern stern@rowland.harvard.edu

commit 13890626501ffda22b18213ddaf7930473da5792 upstream.

Many of the older USB drivers in the Linux USB stack were written based simply on a vendor's device specification. They use the endpoint information in the spec and assume these endpoints will always be present, with the properties listed, in any device matching the given vendor and product IDs.

While that may have been true back then, with spoofing and fuzzing it is not true any more. More and more we are finding that those old drivers need to perform at least a minimum of checking before they try to use any endpoint other than ep0.

To make this checking as simple as possible, we now add a couple of utility routines to the USB core. usb_check_bulk_endpoints() and usb_check_int_endpoints() take an interface pointer together with a list of endpoint addresses (numbers and directions). They check that the interface's current alternate setting includes endpoints with those addresses and that each of these endpoints has the right type: bulk or interrupt, respectively.

Although we already have usb_find_common_endpoints() and related routines meant for a similar purpose, they are not well suited for this kind of checking. Those routines find endpoints of various kinds, but only one (either the first or the last) of each kind, and they don't verify that the endpoints' addresses agree with what the caller expects.

In theory the new routines could be more general: They could take a particular altsetting as their argument instead of always using the interface's current altsetting. In practice I think this won't matter too much; multiple altsettings tend to be used for transferring media (audio or visual) over isochronous endpoints, not bulk or interrupt. Drivers for such devices will generally require more sophisticated checking than these simplistic routines provide.

Signed-off-by: Alan Stern stern@rowland.harvard.edu Link: https://lore.kernel.org/r/dd2c8e8c-2c87-44ea-ba17-c64b97e201c9@rowland.harva... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/core/usb.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/usb.h | 5 +++ 2 files changed, 81 insertions(+)

--- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -209,6 +209,82 @@ int usb_find_common_endpoints_reverse(st EXPORT_SYMBOL_GPL(usb_find_common_endpoints_reverse);

/** + * usb_find_endpoint() - Given an endpoint address, search for the endpoint's + * usb_host_endpoint structure in an interface's current altsetting. + * @intf: the interface whose current altsetting should be searched + * @ep_addr: the endpoint address (number and direction) to find + * + * Search the altsetting's list of endpoints for one with the specified address. + * + * Return: Pointer to the usb_host_endpoint if found, %NULL otherwise. + */ +static const struct usb_host_endpoint *usb_find_endpoint( + const struct usb_interface *intf, unsigned int ep_addr) +{ + int n; + const struct usb_host_endpoint *ep; + + n = intf->cur_altsetting->desc.bNumEndpoints; + ep = intf->cur_altsetting->endpoint; + for (; n > 0; (--n, ++ep)) { + if (ep->desc.bEndpointAddress == ep_addr) + return ep; + } + return NULL; +} + +/** + * usb_check_bulk_endpoints - Check whether an interface's current altsetting + * contains a set of bulk endpoints with the given addresses. + * @intf: the interface whose current altsetting should be searched + * @ep_addrs: 0-terminated array of the endpoint addresses (number and + * direction) to look for + * + * Search for endpoints with the specified addresses and check their types. + * + * Return: %true if all the endpoints are found and are bulk, %false otherwise. + */ +bool usb_check_bulk_endpoints( + const struct usb_interface *intf, const u8 *ep_addrs) +{ + const struct usb_host_endpoint *ep; + + for (; *ep_addrs; ++ep_addrs) { + ep = usb_find_endpoint(intf, *ep_addrs); + if (!ep || !usb_endpoint_xfer_bulk(&ep->desc)) + return false; + } + return true; +} +EXPORT_SYMBOL_GPL(usb_check_bulk_endpoints); + +/** + * usb_check_int_endpoints - Check whether an interface's current altsetting + * contains a set of interrupt endpoints with the given addresses. + * @intf: the interface whose current altsetting should be searched + * @ep_addrs: 0-terminated array of the endpoint addresses (number and + * direction) to look for + * + * Search for endpoints with the specified addresses and check their types. + * + * Return: %true if all the endpoints are found and are interrupt, + * %false otherwise. + */ +bool usb_check_int_endpoints( + const struct usb_interface *intf, const u8 *ep_addrs) +{ + const struct usb_host_endpoint *ep; + + for (; *ep_addrs; ++ep_addrs) { + ep = usb_find_endpoint(intf, *ep_addrs); + if (!ep || !usb_endpoint_xfer_int(&ep->desc)) + return false; + } + return true; +} +EXPORT_SYMBOL_GPL(usb_check_int_endpoints); + +/** * usb_find_alt_setting() - Given a configuration, find the alternate setting * for the given interface. * @config: the configuration to search (not necessarily the current config). --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -279,6 +279,11 @@ void usb_put_intf(struct usb_interface * #define USB_MAXINTERFACES 32 #define USB_MAXIADS (USB_MAXINTERFACES/2)

+bool usb_check_bulk_endpoints( + const struct usb_interface *intf, const u8 *ep_addrs); +bool usb_check_int_endpoints( + const struct usb_interface *intf, const u8 *ep_addrs); + /* * USB Resume Timer: Every Host controller driver should drive the resume * signalling on the bus for the amount of time defined by this macro.

From: Alan Stern stern@rowland.harvard.edu

commit 76e31045ba030e94e72105c01b2e98f543d175ac upstream.

The syzbot fuzzer was able to provoke a WARNING from the radio-shark2 driver:

------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 3271 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed2/0x1880 drivers/usb/core/urb.c:504 Modules linked in: CPU: 0 PID: 3271 Comm: kworker/0:3 Not tainted 6.1.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0xed2/0x1880 drivers/usb/core/urb.c:504 Code: 7c 24 18 e8 00 36 ea fb 48 8b 7c 24 18 e8 36 1c 02 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 a0 b6 90 8a e8 9a 29 b8 03 <0f> 0b e9 58 f8 ff ff e8 d2 35 ea fb 48 81 c5 c0 05 00 00 e9 84 f7 RSP: 0018:ffffc90003876dd0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff8880750b0040 RSI: ffffffff816152b8 RDI: fffff5200070edac RBP: ffff8880172d81e0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880285c5040 R14: 0000000000000002 R15: ffff888017158200 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe03235b90 CR3: 000000000bc8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> usb_start_wait_urb+0x101/0x4b0 drivers/usb/core/message.c:58 usb_bulk_msg+0x226/0x550 drivers/usb/core/message.c:387 shark_write_reg+0x1ff/0x2e0 drivers/media/radio/radio-shark2.c:88 ...

The problem was caused by the fact that the driver does not check whether the endpoints it uses are actually present and have the appropriate types. This can be fixed by adding a simple check of these endpoints (and similarly for the radio-shark driver).

Link: https://syzkaller.appspot.com/bug?extid=4b3f8190f6e13b3efd74 Reported-and-tested-by: syzbot+4b3f8190f6e13b3efd74@syzkaller.appspotmail.com Signed-off-by: Alan Stern stern@rowland.harvard.edu Link: https://lore.kernel.org/r/e2858ab4-4adf-46e5-bbf6-c56742034547@rowland.harva... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/radio/radio-shark.c | 10 ++++++++++ drivers/media/radio/radio-shark2.c | 10 ++++++++++ 2 files changed, 20 insertions(+)

--- a/drivers/media/radio/radio-shark.c +++ b/drivers/media/radio/radio-shark.c @@ -316,6 +316,16 @@ static int usb_shark_probe(struct usb_in { struct shark_device *shark; int retval = -ENOMEM; + static const u8 ep_addresses[] = { + SHARK_IN_EP | USB_DIR_IN, + SHARK_OUT_EP | USB_DIR_OUT, + 0}; + + /* Are the expected endpoints present? */ + if (!usb_check_int_endpoints(intf, ep_addresses)) { + dev_err(&intf->dev, "Invalid radioSHARK device\n"); + return -EINVAL; + }

shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL); if (!shark) --- a/drivers/media/radio/radio-shark2.c +++ b/drivers/media/radio/radio-shark2.c @@ -282,6 +282,16 @@ static int usb_shark_probe(struct usb_in { struct shark_device *shark; int retval = -ENOMEM; + static const u8 ep_addresses[] = { + SHARK_IN_EP | USB_DIR_IN, + SHARK_OUT_EP | USB_DIR_OUT, + 0}; + + /* Are the expected endpoints present? */ + if (!usb_check_int_endpoints(intf, ep_addresses)) { + dev_err(&intf->dev, "Invalid radioSHARK2 device\n"); + return -EINVAL; + }

shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL); if (!shark)

From: Po-Hsu Lin po-hsu.lin@canonical.com

commit d226b1df361988f885c298737d6019c863a25f26 upstream.

In the end of the test, there will be an error message induced by the `ip netns del ns1` command in cleanup()

Tests passed: 201 Tests failed: 0 Cannot remove namespace file "/run/netns/ns1": No such file or directory

This can even be reproduced with just `./fib_tests.sh -h` as we're calling cleanup() on exit.

Redirect the error message to /dev/null to mute it.

V2: Update commit message and fixes tag. V3: resubmit due to missing netdev ML in V2

Fixes: b60417a9f2b8 ("selftest: fib_tests: Always cleanup before exit") Signed-off-by: Po-Hsu Lin po-hsu.lin@canonical.com Reviewed-by: Ido Schimmel idosch@nvidia.com Reviewed-by: Simon Horman simon.horman@corigine.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/net/fib_tests.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -68,7 +68,7 @@ setup() cleanup() { $IP link del dev dummy0 &> /dev/null - ip netns del ns1 + ip netns del ns1 &> /dev/null ip netns del ns2 &> /dev/null }

From: Gavrilov Ilia Ilia.Gavrilov@infotecs.ru

commit 878ecb0897f4737a4c9401f3523fd49589025671 upstream.

optlen is fetched without checking whether there is more than one byte to parse. It can lead to out-of-bounds access.

Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: c61a40432509 ("[IPV6]: Find option offset by type.") Signed-off-by: Gavrilov Ilia Ilia.Gavrilov@infotecs.ru Reviewed-by: Jiri Pirko jiri@nvidia.com Reviewed-by: David Ahern dsahern@kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv6/exthdrs_core.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/net/ipv6/exthdrs_core.c +++ b/net/ipv6/exthdrs_core.c @@ -143,6 +143,8 @@ int ipv6_find_tlv(const struct sk_buff * optlen = 1; break; default: + if (len < 2) + goto bad; optlen = nh[offset + 1] + 2; if (optlen > len) goto bad;

From: Hans de Goede hdegoede@redhat.com

commit 5c34c0aef185dcd10881847b9ebf20046aa77cb4 upstream.

bq27xxx_battery_update() assumes / requires that it is only run once, not multiple times at the same time. But there are 3 possible callers:

1. bq27xxx_battery_poll() delayed_work item handler 2. bq27xxx_battery_irq_handler_thread() I2C IRQ handler 3. bq27xxx_battery_setup()

And there is no protection against these racing with each other, fix this race condition by making all callers take di->lock:

- Rename bq27xxx_battery_update() to bq27xxx_battery_update_unlocked()

- Add new bq27xxx_battery_update() which takes di->lock and then calls bq27xxx_battery_update_unlocked()

- Make stale cache check code in bq27xxx_battery_get_property(), which already takes di->lock directly to check the jiffies, call bq27xxx_battery_update_unlocked() instead of messing with the delayed_work item

- Make bq27xxx_battery_update_unlocked() mod the delayed-work item so that the next poll is delayed to poll_interval milliseconds after the last update independent of the source of the update

Fixes: 740b755a3b34 ("bq27x00: Poll battery state") Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/power/supply/bq27xxx_battery.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-)

--- a/drivers/power/supply/bq27xxx_battery.c +++ b/drivers/power/supply/bq27xxx_battery.c @@ -1547,7 +1547,7 @@ static int bq27xxx_battery_read_health(s return POWER_SUPPLY_HEALTH_GOOD; }

-void bq27xxx_battery_update(struct bq27xxx_device_info *di) +static void bq27xxx_battery_update_unlocked(struct bq27xxx_device_info *di) { struct bq27xxx_reg_cache cache = {0, }; bool has_ci_flag = di->opts & BQ27XXX_O_ZERO; @@ -1597,6 +1597,16 @@ void bq27xxx_battery_update(struct bq27x di->cache = cache;

di->last_update = jiffies; + + if (poll_interval > 0) + mod_delayed_work(system_wq, &di->work, poll_interval * HZ); +} + +void bq27xxx_battery_update(struct bq27xxx_device_info *di) +{ + mutex_lock(&di->lock); + bq27xxx_battery_update_unlocked(di); + mutex_unlock(&di->lock); } EXPORT_SYMBOL_GPL(bq27xxx_battery_update);

@@ -1607,9 +1617,6 @@ static void bq27xxx_battery_poll(struct work.work);

bq27xxx_battery_update(di); - - if (poll_interval > 0) - schedule_delayed_work(&di->work, poll_interval * HZ); }

/* @@ -1770,10 +1777,8 @@ static int bq27xxx_battery_get_property( struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);

mutex_lock(&di->lock); - if (time_is_before_jiffies(di->last_update + 5 * HZ)) { - cancel_delayed_work_sync(&di->work); - bq27xxx_battery_poll(&di->work.work); - } + if (time_is_before_jiffies(di->last_update + 5 * HZ)) + bq27xxx_battery_update_unlocked(di); mutex_unlock(&di->lock);

if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0)

From: Hans de Goede hdegoede@redhat.com

commit c00bc80462afc7963f449d7f21d896d2f629cacc upstream.

Before this patch bq27xxx_battery_teardown() was setting poll_interval = 0 to avoid bq27xxx_battery_update() requeuing the delayed_work item.

There are 2 problems with this:

1. If the driver is unbound through sysfs, rather then the module being rmmod-ed, this changes poll_interval unexpectedly

2. This is racy, after it being set poll_interval could be changed before bq27xxx_battery_update() checks it through /sys/module/bq27xxx_battery/parameters/poll_interval

Fix this by added a removed attribute to struct bq27xxx_device_info and using that instead of setting poll_interval to 0.

There also is another poll_interval related race on remove(), writing /sys/module/bq27xxx_battery/parameters/poll_interval will requeue the delayed_work item for all devices on the bq27xxx_battery_devices list and the device being removed was only removed from that list after cancelling the delayed_work item.

Fix this by moving the removal from the bq27xxx_battery_devices list to before cancelling the delayed_work item.

Fixes: 8cfaaa811894 ("bq27x00_battery: Fix OOPS caused by unregistring bq27x00 driver") Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/power/supply/bq27xxx_battery.c | 22 +++++++++------------- include/linux/power/bq27xxx_battery.h | 1 + 2 files changed, 10 insertions(+), 13 deletions(-)

--- a/drivers/power/supply/bq27xxx_battery.c +++ b/drivers/power/supply/bq27xxx_battery.c @@ -1598,7 +1598,7 @@ static void bq27xxx_battery_update_unloc

di->last_update = jiffies;

- if (poll_interval > 0) + if (!di->removed && poll_interval > 0) mod_delayed_work(system_wq, &di->work, poll_interval * HZ); }

@@ -1915,22 +1915,18 @@ EXPORT_SYMBOL_GPL(bq27xxx_battery_setup)

void bq27xxx_battery_teardown(struct bq27xxx_device_info *di) { - /* - * power_supply_unregister call bq27xxx_battery_get_property which - * call bq27xxx_battery_poll. - * Make sure that bq27xxx_battery_poll will not call - * schedule_delayed_work again after unregister (which cause OOPS). - */ - poll_interval = 0; - - cancel_delayed_work_sync(&di->work); - - power_supply_unregister(di->bat); - mutex_lock(&bq27xxx_list_lock); list_del(&di->list); mutex_unlock(&bq27xxx_list_lock);

+ /* Set removed to avoid bq27xxx_battery_update() re-queuing the work */ + mutex_lock(&di->lock); + di->removed = true; + mutex_unlock(&di->lock); + + cancel_delayed_work_sync(&di->work); + + power_supply_unregister(di->bat); mutex_destroy(&di->lock); } EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown); --- a/include/linux/power/bq27xxx_battery.h +++ b/include/linux/power/bq27xxx_battery.h @@ -64,6 +64,7 @@ struct bq27xxx_device_info { struct bq27xxx_access_methods bus; struct bq27xxx_reg_cache cache; int charge_design_full; + bool removed; unsigned long last_update; struct delayed_work work; struct power_supply *bat;

From: Dan Carpenter dan.carpenter@linaro.org

commit f67bc15e526bb9920683ad6c1891ff9e08981335 upstream.

This code generates a Smatch warning:

drivers/hwtracing/coresight/coresight-tmc-etr.c:947 tmc_etr_buf_insert_barrier_packet() error: uninitialized symbol 'bufp'.

The problem is that if tmc_sg_table_get_data() returns -EINVAL, then when we test if "len < CORESIGHT_BARRIER_PKT_SIZE", the negative "len" value is type promoted to a high unsigned long value which is greater than CORESIGHT_BARRIER_PKT_SIZE. Fix this bug by adding an explicit check for error codes.

Fixes: 75f4e3619fe2 ("coresight: tmc-etr: Add transparent buffer management") Signed-off-by: Dan Carpenter dan.carpenter@linaro.org Signed-off-by: Suzuki K Poulose suzuki.poulose@arm.com Link: https://lore.kernel.org/r/7d33e244-d8b9-4c27-9653-883a13534b01@kili.mountain Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hwtracing/coresight/coresight-tmc-etr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c @@ -909,7 +909,7 @@ tmc_etr_buf_insert_barrier_packet(struct

len = tmc_etr_buf_get_data(etr_buf, offset, CORESIGHT_BARRIER_PKT_SIZE, &bufp); - if (WARN_ON(len < CORESIGHT_BARRIER_PKT_SIZE)) + if (WARN_ON(len < 0 || len < CORESIGHT_BARRIER_PKT_SIZE)) return -EINVAL; coresight_insert_barrier_packet(bufp); return offset + CORESIGHT_BARRIER_PKT_SIZE;

From: Vernon Lovejoy vlovejoy@redhat.com

commit 2e4be0d011f21593c6b316806779ba1eba2cd7e0 upstream.

The commit e335bb51cc15 ("x86/unwind: Ensure stack pointer is aligned") tried to align the stack pointer in show_trace_log_lvl(), otherwise the "stack < stack_info.end" check can't guarantee that the last read does not go past the end of the stack.

However, we have the same problem with the initial value of the stack pointer, it can also be unaligned. So without this patch this trivial kernel module

#include <linux/module.h>

static int init(void) { asm volatile("sub $0x4,%rsp"); dump_stack(); asm volatile("add $0x4,%rsp");

return -EAGAIN; }

module_init(init); MODULE_LICENSE("GPL");

crashes the kernel.

Fixes: e335bb51cc15 ("x86/unwind: Ensure stack pointer is aligned") Signed-off-by: Vernon Lovejoy vlovejoy@redhat.com Signed-off-by: Oleg Nesterov oleg@redhat.com Link: https://lore.kernel.org/r/20230512104232.GA10227@redhat.com Signed-off-by: Josh Poimboeuf jpoimboe@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/dumpstack.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -171,7 +171,6 @@ void show_trace_log_lvl(struct task_stru printk("%sCall Trace:\n", log_lvl);

unwind_start(&state, task, regs, stack); - stack = stack ? : get_stack_pointer(task, regs); regs = unwind_get_entry_regs(&state, &partial);

/* @@ -190,9 +189,13 @@ void show_trace_log_lvl(struct task_stru * - hardirq stack * - entry stack */ - for ( ; stack; stack = PTR_ALIGN(stack_info.next_sp, sizeof(long))) { + for (stack = stack ?: get_stack_pointer(task, regs); + stack; + stack = stack_info.next_sp) { const char *stack_name;

+ stack = PTR_ALIGN(stack, sizeof(long)); + if (get_stack_info(stack, task, &stack_info, &visit_mask)) { /* * We weren't on a valid stack. It's possible that

From: Christophe JAILLET christophe.jaillet@wanadoo.fr

commit 5b17a4971d3b2a073f4078dd65331efbe35baa2d upstream.

If an error occures after calling nv_mgmt_acquire_sema(), it should be undone with a corresponding nv_mgmt_release_sema() call.

Add it in the error handling path of the probe as already done in the remove function.

Fixes: cac1c52c3621 ("forcedeth: mgmt unit interface") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Acked-by: Zhu Yanjun zyjzyj2000@gmail.com Link: https://lore.kernel.org/r/355e9a7d351b32ad897251b6f81b5886fcdc6766.168457139... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/nvidia/forcedeth.c | 1 + 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -6099,6 +6099,7 @@ static int nv_probe(struct pci_dev *pci_ return 0;

out_error: + nv_mgmt_release_sema(dev); if (phystate_orig) writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl); out_freering:

From: Shay Drory shayd@nvidia.com

commit af87194352cad882d787d06fb7efa714acd95427 upstream.

In case devcom allocation is failed, mlx5 is always freeing the priv. However, this priv might have been allocated by a different thread, and freeing it might lead to use-after-free bugs. Fix it by freeing the priv only in case it was allocated by the running thread.

Fixes: fadd59fc50d0 ("net/mlx5: Introduce inter-device communication mechanism") Signed-off-by: Shay Drory shayd@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c @@ -110,7 +110,8 @@ struct mlx5_devcom *mlx5_devcom_register priv->devs[idx] = dev; devcom = mlx5_devcom_alloc(priv, idx); if (!devcom) { - kfree(priv); + if (new_priv) + kfree(priv); return ERR_PTR(-ENOMEM); }