This is a note to let you know that I've just added the patch titled
NFS: don't try to cross a mountpount when there isn't one there.
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
nfs-don-t-try-to-cross-a-mountpount-when-there-isn-t-one-there.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: NeilBrown <neilb(a)suse.com>
Date: Wed, 15 Mar 2017 12:40:44 +1100
Subject: NFS: don't try to cross a mountpount when there isn't one there.
From: NeilBrown <neilb(a)suse.com>
[ Upstream commit 99bbf6ecc694dfe0b026e15359c5aa2a60b97a93 ]
consider the sequence of commands:
mkdir -p /import/nfs /import/bind /import/etc
mount --bind / /import/bind
mount --make-private /import/bind
mount --bind /import/etc /import/bind/etc
exportfs -o rw,no_root_squash,crossmnt,async,no_subtree_check localhost:/
mount -o vers=4 localhost:/ /import/nfs
ls -l /import/nfs/etc
You would not expect this to report a stale file handle.
Yet it does.
The manipulations under /import/bind cause the dentry for
/etc to get the DCACHE_MOUNTED flag set, even though nothing
is mounted on /etc. This causes nfsd to call
nfsd_cross_mnt() even though there is no mountpoint. So an
upcall to mountd for "/etc" is performed.
The 'crossmnt' flag on the export of / causes mountd to
report that /etc is exported as it is a descendant of /. It
assumes the kernel wouldn't ask about something that wasn't
a mountpoint. The filehandle returned identifies the
filesystem and the inode number of /etc.
When this filehandle is presented to rpc.mountd, via
"nfsd.fh", the inode cannot be found associated with any
name in /etc/exports, or with any mountpoint listed by
getmntent(). So rpc.mountd says the filehandle doesn't
exist. Hence ESTALE.
This is fixed by teaching nfsd not to trust DCACHE_MOUNTED
too much. It is just a hint, not a guarantee.
Change nfsd_mountpoint() to return '1' for a certain mountpoint,
'2' for a possible mountpoint, and 0 otherwise.
Then change nfsd_crossmnt() to check if follow_down()
actually found a mountpount and, if not, to avoid performing
a lookup if the location is not known to certainly require
an export-point.
Signed-off-by: NeilBrown <neilb(a)suse.com>
Signed-off-by: J. Bruce Fields <bfields(a)redhat.com>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
fs/nfsd/vfs.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -94,6 +94,12 @@ nfsd_cross_mnt(struct svc_rqst *rqstp, s
err = follow_down(&path);
if (err < 0)
goto out;
+ if (path.mnt == exp->ex_path.mnt && path.dentry == dentry &&
+ nfsd_mountpoint(dentry, exp) == 2) {
+ /* This is only a mountpoint in some other namespace */
+ path_put(&path);
+ goto out;
+ }
exp2 = rqst_exp_get_by_name(rqstp, &path);
if (IS_ERR(exp2)) {
@@ -167,16 +173,26 @@ static int nfsd_lookup_parent(struct svc
/*
* For nfsd purposes, we treat V4ROOT exports as though there was an
* export at *every* directory.
+ * We return:
+ * '1' if this dentry *must* be an export point,
+ * '2' if it might be, if there is really a mount here, and
+ * '0' if there is no chance of an export point here.
*/
int nfsd_mountpoint(struct dentry *dentry, struct svc_export *exp)
{
- if (d_mountpoint(dentry))
+ if (!d_inode(dentry))
+ return 0;
+ if (exp->ex_flags & NFSEXP_V4ROOT)
return 1;
if (nfsd4_is_junction(dentry))
return 1;
- if (!(exp->ex_flags & NFSEXP_V4ROOT))
- return 0;
- return d_inode(dentry) != NULL;
+ if (d_mountpoint(dentry))
+ /*
+ * Might only be a mountpoint in a different namespace,
+ * but we need to check.
+ */
+ return 2;
+ return 0;
}
__be32
Patches currently in stable-queue which might be from neilb(a)suse.com are
queue-4.9/dm-ensure-bio-submission-follows-a-depth-first-tree-walk.patch
queue-4.9/md-raid10-wait-up-frozen-array-in-handle_write_completed.patch
queue-4.9/nfs-don-t-try-to-cross-a-mountpount-when-there-isn-t-one-there.patch
queue-4.9/md-raid10-skip-spare-disk-as-first-disk.patch
This is a note to let you know that I've just added the patch titled
netvsc: Deal with rescinded channels correctly
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
netvsc-deal-with-rescinded-channels-correctly.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: "K. Y. Srinivasan" <kys(a)microsoft.com>
Date: Wed, 19 Apr 2017 13:53:49 -0700
Subject: netvsc: Deal with rescinded channels correctly
From: "K. Y. Srinivasan" <kys(a)microsoft.com>
[ Upstream commit 73e64fa4f417b22d8d5521999a631ced8e2d442e ]
We will not be able to send packets over a channel that has been
rescinded. Make necessary adjustments so we can properly cleanup
even when the channel is rescinded. This issue can be trigerred
in the NIC hot-remove path.
Signed-off-by: K. Y. Srinivasan <kys(a)microsoft.com>
Signed-off-by: David S. Miller <davem(a)davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/net/hyperv/netvsc.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -151,6 +151,13 @@ static void netvsc_destroy_buf(struct hv
sizeof(struct nvsp_message),
(unsigned long)revoke_packet,
VM_PKT_DATA_INBAND, 0);
+ /* If the failure is because the channel is rescinded;
+ * ignore the failure since we cannot send on a rescinded
+ * channel. This would allow us to properly cleanup
+ * even when the channel is rescinded.
+ */
+ if (device->channel->rescind)
+ ret = 0;
/*
* If we failed here, we might as well return and
* have a leak rather than continue and a bugchk
@@ -211,6 +218,15 @@ static void netvsc_destroy_buf(struct hv
sizeof(struct nvsp_message),
(unsigned long)revoke_packet,
VM_PKT_DATA_INBAND, 0);
+
+ /* If the failure is because the channel is rescinded;
+ * ignore the failure since we cannot send on a rescinded
+ * channel. This would allow us to properly cleanup
+ * even when the channel is rescinded.
+ */
+ if (device->channel->rescind)
+ ret = 0;
+
/* If we failed here, we might as well return and
* have a leak rather than continue and a bugchk
*/
Patches currently in stable-queue which might be from kys(a)microsoft.com are
queue-4.9/netvsc-deal-with-rescinded-channels-correctly.patch
This is a note to let you know that I've just added the patch titled
netfilter: xt_CT: fix refcnt leak on error path
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
netfilter-xt_ct-fix-refcnt-leak-on-error-path.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Gao Feng <fgao(a)ikuai8.com>
Date: Fri, 14 Apr 2017 10:00:08 +0800
Subject: netfilter: xt_CT: fix refcnt leak on error path
From: Gao Feng <fgao(a)ikuai8.com>
[ Upstream commit 470acf55a021713869b9bcc967268ac90c8a0fac ]
There are two cases which causes refcnt leak.
1. When nf_ct_timeout_ext_add failed in xt_ct_set_timeout, it should
free the timeout refcnt.
Now goto the err_put_timeout error handler instead of going ahead.
2. When the time policy is not found, we should call module_put.
Otherwise, the related cthelper module cannot be removed anymore.
It is easy to reproduce by typing the following command:
# iptables -t raw -A OUTPUT -p tcp -j CT --helper ftp --timeout xxx
Signed-off-by: Gao Feng <fgao(a)ikuai8.com>
Signed-off-by: Liping Zhang <zlpnobody(a)gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
net/netfilter/xt_CT.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
--- a/net/netfilter/xt_CT.c
+++ b/net/netfilter/xt_CT.c
@@ -168,8 +168,10 @@ xt_ct_set_timeout(struct nf_conn *ct, co
goto err_put_timeout;
}
timeout_ext = nf_ct_timeout_ext_add(ct, timeout, GFP_ATOMIC);
- if (timeout_ext == NULL)
+ if (!timeout_ext) {
ret = -ENOMEM;
+ goto err_put_timeout;
+ }
rcu_read_unlock();
return ret;
@@ -201,6 +203,7 @@ static int xt_ct_tg_check(const struct x
struct xt_ct_target_info_v1 *info)
{
struct nf_conntrack_zone zone;
+ struct nf_conn_help *help;
struct nf_conn *ct;
int ret = -EOPNOTSUPP;
@@ -249,7 +252,7 @@ static int xt_ct_tg_check(const struct x
if (info->timeout[0]) {
ret = xt_ct_set_timeout(ct, par, info->timeout);
if (ret < 0)
- goto err3;
+ goto err4;
}
__set_bit(IPS_CONFIRMED_BIT, &ct->status);
nf_conntrack_get(&ct->ct_general);
@@ -257,6 +260,10 @@ out:
info->ct = ct;
return 0;
+err4:
+ help = nfct_help(ct);
+ if (help)
+ module_put(help->helper->me);
err3:
nf_ct_tmpl_free(ct);
err2:
Patches currently in stable-queue which might be from fgao(a)ikuai8.com are
queue-4.9/netfilter-xt_ct-fix-refcnt-leak-on-error-path.patch
This is a note to let you know that I've just added the patch titled
netfilter: x_tables: unlock on error in xt_find_table_lock()
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
netfilter-x_tables-unlock-on-error-in-xt_find_table_lock.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Dan Carpenter <dan.carpenter(a)oracle.com>
Date: Fri, 28 Apr 2017 15:57:56 +0300
Subject: netfilter: x_tables: unlock on error in xt_find_table_lock()
From: Dan Carpenter <dan.carpenter(a)oracle.com>
[ Upstream commit 7dde07e9c53617549d67dd3e1d791496d0d3868e ]
According to my static checker we should unlock here before the return.
That seems reasonable to me as well.
Fixes" b9e69e127397 ("netfilter: xtables: don't hook tables by default")
Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com>
Acked-by: Florian Westphal <fw(a)strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
net/netfilter/x_tables.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1006,8 +1006,10 @@ struct xt_table *xt_find_table_lock(stru
list_for_each_entry(t, &init_net.xt.tables[af], list) {
if (strcmp(t->name, name))
continue;
- if (!try_module_get(t->me))
+ if (!try_module_get(t->me)) {
+ mutex_unlock(&xt[af].mutex);
return NULL;
+ }
mutex_unlock(&xt[af].mutex);
if (t->table_init(net) != 0) {
Patches currently in stable-queue which might be from dan.carpenter(a)oracle.com are
queue-4.9/netfilter-x_tables-unlock-on-error-in-xt_find_table_lock.patch
queue-4.9/asoc-intel-skylake-uninitialized-variable-in-probe_codec.patch
queue-4.9/mmc-host-omap_hsmmc-checking-for-null-instead-of-is_err.patch
queue-4.9/qed-unlock-on-error-in-qed_vf_pf_acquire.patch
queue-4.9/hsi-ssi_protocol-double-free-in-ssip_pn_xmit.patch
queue-4.9/cifs-small-underflow-in-cnvrtdosunixtm.patch
queue-4.9/ib-rdmavt-restore-irqs-on-error-path-in-rvt_create_ah.patch
This is a note to let you know that I've just added the patch titled
netfilter: nft_dynset: continue to next expr if _OP_ADD succeeded
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
netfilter-nft_dynset-continue-to-next-expr-if-_op_add-succeeded.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Liping Zhang <zlpnobody(a)gmail.com>
Date: Sun, 23 Apr 2017 18:29:30 +0800
Subject: netfilter: nft_dynset: continue to next expr if _OP_ADD succeeded
From: Liping Zhang <zlpnobody(a)gmail.com>
[ Upstream commit 277a292835c196894ef895d5e1fd6170bb916f55 ]
Currently, after adding the following nft rules:
# nft add set x target1 { type ipv4_addr \; flags timeout \;}
# nft add rule x y set add ip daddr timeout 1d @target1 counter
the counters will always be zero despite of the elements are added
to the dynamic set "target1" or not, as we will break the nft expr
traversal unconditionally:
# nft list ruleset
...
set target1 {
...
elements = { 8.8.8.8 expires 23h59m53s}
}
chain output {
...
set add ip daddr timeout 1d @target1 counter packets 0 bytes 0
^ ^
...
}
Since we add the elements to the set successfully, we should continue
to the next expression.
Additionally, if elements are added to "flow table" successfully, we
will _always_ continue to the next expr, even if the operation is
_OP_ADD. So it's better to keep them to be consistent.
Fixes: 22fe54d5fefc ("netfilter: nf_tables: add support for dynamic set updates")
Reported-by: Robert White <rwhite(a)pobox.com>
Signed-off-by: Liping Zhang <zlpnobody(a)gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
net/netfilter/nft_dynset.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -82,8 +82,7 @@ static void nft_dynset_eval(const struct
nft_set_ext_exists(ext, NFT_SET_EXT_EXPIRATION)) {
timeout = priv->timeout ? : set->timeout;
*nft_set_ext_expiration(ext) = jiffies + timeout;
- } else if (sexpr == NULL)
- goto out;
+ }
if (sexpr != NULL)
sexpr->ops->eval(sexpr, regs, pkt);
@@ -92,7 +91,7 @@ static void nft_dynset_eval(const struct
regs->verdict.code = NFT_BREAK;
return;
}
-out:
+
if (!priv->invert)
regs->verdict.code = NFT_BREAK;
}
Patches currently in stable-queue which might be from zlpnobody(a)gmail.com are
queue-4.9/netfilter-nf_ct_helper-permit-cthelpers-with-different-names-via-nfnetlink.patch
queue-4.9/netfilter-xt_ct-fix-refcnt-leak-on-error-path.patch
queue-4.9/netfilter-nft_dynset-continue-to-next-expr-if-_op_add-succeeded.patch
This is a note to let you know that I've just added the patch titled
netfilter: nf_ct_helper: permit cthelpers with different names via nfnetlink
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
netfilter-nf_ct_helper-permit-cthelpers-with-different-names-via-nfnetlink.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Liping Zhang <zlpnobody(a)gmail.com>
Date: Sat, 15 Apr 2017 19:27:42 +0800
Subject: netfilter: nf_ct_helper: permit cthelpers with different names via nfnetlink
From: Liping Zhang <zlpnobody(a)gmail.com>
[ Upstream commit 66e5a6b18bd09d0431e97cd3c162e76c5c2aebba ]
cthelpers added via nfnetlink may have the same tuple, i.e. except for
the l3proto and l4proto, other fields are all zero. So even with the
different names, we will also fail to add them:
# nfct helper add ssdp inet udp
# nfct helper add tftp inet udp
nfct v1.4.3: netlink error: File exists
So in order to avoid unpredictable behaviour, we should:
1. cthelpers can be selected by nft ct helper obj or xt_CT target, so
report error if duplicated { name, l3proto, l4proto } tuple exist.
2. cthelpers can be selected by nf_ct_tuple_src_mask_cmp when
nf_ct_auto_assign_helper is enabled, so also report error if duplicated
{ l3proto, l4proto, src-port } tuple exist.
Also note, if the cthelper is added from userspace, then the src-port will
always be zero, it's invalid for nf_ct_auto_assign_helper, so there's no
need to check the second point listed above.
Fixes: 893e093c786c ("netfilter: nf_ct_helper: bail out on duplicated helpers")
Signed-off-by: Liping Zhang <zlpnobody(a)gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
net/netfilter/nf_conntrack_helper.c | 26 +++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -379,17 +379,33 @@ int nf_conntrack_helper_register(struct
struct nf_conntrack_tuple_mask mask = { .src.u.all = htons(0xFFFF) };
unsigned int h = helper_hash(&me->tuple);
struct nf_conntrack_helper *cur;
- int ret = 0;
+ int ret = 0, i;
BUG_ON(me->expect_policy == NULL);
BUG_ON(me->expect_class_max >= NF_CT_MAX_EXPECT_CLASSES);
BUG_ON(strlen(me->name) > NF_CT_HELPER_NAME_LEN - 1);
mutex_lock(&nf_ct_helper_mutex);
- hlist_for_each_entry(cur, &nf_ct_helper_hash[h], hnode) {
- if (nf_ct_tuple_src_mask_cmp(&cur->tuple, &me->tuple, &mask)) {
- ret = -EEXIST;
- goto out;
+ for (i = 0; i < nf_ct_helper_hsize; i++) {
+ hlist_for_each_entry(cur, &nf_ct_helper_hash[i], hnode) {
+ if (!strcmp(cur->name, me->name) &&
+ (cur->tuple.src.l3num == NFPROTO_UNSPEC ||
+ cur->tuple.src.l3num == me->tuple.src.l3num) &&
+ cur->tuple.dst.protonum == me->tuple.dst.protonum) {
+ ret = -EEXIST;
+ goto out;
+ }
+ }
+ }
+
+ /* avoid unpredictable behaviour for auto_assign_helper */
+ if (!(me->flags & NF_CT_HELPER_F_USERSPACE)) {
+ hlist_for_each_entry(cur, &nf_ct_helper_hash[h], hnode) {
+ if (nf_ct_tuple_src_mask_cmp(&cur->tuple, &me->tuple,
+ &mask)) {
+ ret = -EEXIST;
+ goto out;
+ }
}
}
hlist_add_head_rcu(&me->hnode, &nf_ct_helper_hash[h]);
Patches currently in stable-queue which might be from zlpnobody(a)gmail.com are
queue-4.9/netfilter-nf_ct_helper-permit-cthelpers-with-different-names-via-nfnetlink.patch
queue-4.9/netfilter-xt_ct-fix-refcnt-leak-on-error-path.patch
queue-4.9/netfilter-nft_dynset-continue-to-next-expr-if-_op_add-succeeded.patch
This is a note to let you know that I've just added the patch titled
net: ipv6: send unsolicited NA on admin up
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
net-ipv6-send-unsolicited-na-on-admin-up.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: David Ahern <dsa(a)cumulusnetworks.com>
Date: Wed, 12 Apr 2017 11:49:04 -0700
Subject: net: ipv6: send unsolicited NA on admin up
From: David Ahern <dsa(a)cumulusnetworks.com>
[ Upstream commit 4a6e3c5def13c91adf2acc613837001f09af3baa ]
ndisc_notify is the ipv6 equivalent to arp_notify. When arp_notify is
set to 1, gratuitous arp requests are sent when the device is brought up.
The same is expected when ndisc_notify is set to 1 (per ndisc_notify in
Documentation/networking/ip-sysctl.txt). The NA is not sent on NETDEV_UP
event; add it.
Fixes: 5cb04436eef6 ("ipv6: add knob to send unsolicited ND on link-layer address change")
Signed-off-by: David Ahern <dsa(a)cumulusnetworks.com>
Acked-by: Hannes Frederic Sowa <hannes(a)stressinduktion.org>
Signed-off-by: David S. Miller <davem(a)davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
net/ipv6/ndisc.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1723,6 +1723,8 @@ static int ndisc_netdev_event(struct not
case NETDEV_CHANGEADDR:
neigh_changeaddr(&nd_tbl, dev);
fib6_run_gc(0, net, false);
+ /* fallthrough */
+ case NETDEV_UP:
idev = in6_dev_get(dev);
if (!idev)
break;
Patches currently in stable-queue which might be from dsa(a)cumulusnetworks.com are
queue-4.9/net-ipv6-send-unsolicited-na-on-admin-up.patch
This is a note to let you know that I've just added the patch titled
net: hns: fix ethtool_get_strings overflow in hns driver
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
net-hns-fix-ethtool_get_strings-overflow-in-hns-driver.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:24 CET 2018
From: Timmy Li <lixiaoping3(a)huawei.com>
Date: Tue, 2 May 2017 10:46:52 +0800
Subject: net: hns: fix ethtool_get_strings overflow in hns driver
From: Timmy Li <lixiaoping3(a)huawei.com>
[ Upstream commit 412b65d15a7f8a93794653968308fc100f2aa87c ]
hns_get_sset_count() returns HNS_NET_STATS_CNT and the data space allocated
is not enough for ethtool_get_strings(), which will cause random memory
corruption.
When SLAB and DEBUG_SLAB are both enabled, memory corruptions like the
the following can be observed without this patch:
[ 43.115200] Slab corruption (Not tainted): Acpi-ParseExt start=ffff801fb0b69030, len=80
[ 43.115206] Redzone: 0x9f911029d006462/0x5f78745f31657070.
[ 43.115208] Last user: [<5f7272655f746b70>](0x5f7272655f746b70)
[ 43.115214] 010: 70 70 65 31 5f 74 78 5f 70 6b 74 00 6b 6b 6b 6b ppe1_tx_pkt.kkkk
[ 43.115217] 030: 70 70 65 31 5f 74 78 5f 70 6b 74 5f 6f 6b 00 6b ppe1_tx_pkt_ok.k
[ 43.115218] Next obj: start=ffff801fb0b69098, len=80
[ 43.115220] Redzone: 0x706d655f6f666966/0x9f911029d74e35b.
[ 43.115229] Last user: [<ffff0000084b11b0>](acpi_os_release_object+0x28/0x38)
[ 43.115231] 000: 74 79 00 6b 6b 6b 6b 6b 70 70 65 31 5f 74 78 5f ty.kkkkkppe1_tx_
[ 43.115232] 010: 70 6b 74 5f 65 72 72 5f 63 73 75 6d 5f 66 61 69 pkt_err_csum_fai
Signed-off-by: Timmy Li <lixiaoping3(a)huawei.com>
Signed-off-by: David S. Miller <davem(a)davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
@@ -671,7 +671,7 @@ static void hns_gmac_get_strings(u32 str
static int hns_gmac_get_sset_count(int stringset)
{
- if (stringset == ETH_SS_STATS)
+ if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
return ARRAY_SIZE(g_gmac_stats_string);
return 0;
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
@@ -422,7 +422,7 @@ void hns_ppe_update_stats(struct hns_ppe
int hns_ppe_get_sset_count(int stringset)
{
- if (stringset == ETH_SS_STATS)
+ if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
return ETH_PPE_STATIC_NUM;
return 0;
}
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -798,7 +798,7 @@ void hns_rcb_get_stats(struct hnae_queue
*/
int hns_rcb_get_ring_sset_count(int stringset)
{
- if (stringset == ETH_SS_STATS)
+ if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
return HNS_RING_STATIC_REG_NUM;
return 0;
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c
@@ -776,7 +776,7 @@ static void hns_xgmac_get_strings(u32 st
*/
static int hns_xgmac_get_sset_count(int stringset)
{
- if (stringset == ETH_SS_STATS)
+ if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
return ARRAY_SIZE(g_xgmac_stats_string);
return 0;
Patches currently in stable-queue which might be from lixiaoping3(a)huawei.com are
queue-4.9/net-hns-fix-ethtool_get_strings-overflow-in-hns-driver.patch
This is a note to let you know that I've just added the patch titled
net: ethernet: ucc_geth: fix MEM_PART_MURAM mode
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum…
The filename of the patch is:
net-ethernet-ucc_geth-fix-mem_part_muram-mode.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable(a)vger.kernel.org> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Christophe Leroy <christophe.leroy(a)c-s.fr>
Date: Tue, 7 Feb 2017 10:05:09 +0100
Subject: net: ethernet: ucc_geth: fix MEM_PART_MURAM mode
From: Christophe Leroy <christophe.leroy(a)c-s.fr>
[ Upstream commit 8b8642af15ed14b9a7a34d3401afbcc274533e13 ]
Since commit 5093bb965a163 ("powerpc/QE: switch to the cpm_muram
implementation"), muram area is not part of immrbar mapping anymore
so immrbar_virt_to_phys() is not usable anymore.
Fixes: 5093bb965a163 ("powerpc/QE: switch to the cpm_muram implementation")
Signed-off-by: Christophe Leroy <christophe.leroy(a)c-s.fr>
Acked-by: David S. Miller <davem(a)davemloft.net>
Acked-by: Li Yang <pku.leo(a)gmail.com>
Signed-off-by: Scott Wood <oss(a)buserror.net>
Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
drivers/net/ethernet/freescale/ucc_geth.c | 8 +++-----
include/soc/fsl/qe/qe.h | 1 +
2 files changed, 4 insertions(+), 5 deletions(-)
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -2594,11 +2594,10 @@ static int ucc_geth_startup(struct ucc_g
} else if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_MURAM) {
out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
- (u32) immrbar_virt_to_phys(ugeth->
- p_tx_bd_ring[i]));
+ (u32)qe_muram_dma(ugeth->p_tx_bd_ring[i]));
out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
last_bd_completed_address,
- (u32) immrbar_virt_to_phys(endOfRing));
+ (u32)qe_muram_dma(endOfRing));
}
}
@@ -2844,8 +2843,7 @@ static int ucc_geth_startup(struct ucc_g
} else if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_MURAM) {
out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
- (u32) immrbar_virt_to_phys(ugeth->
- p_rx_bd_ring[i]));
+ (u32)qe_muram_dma(ugeth->p_rx_bd_ring[i]));
}
/* rest of fields handled by QE */
}
--- a/include/soc/fsl/qe/qe.h
+++ b/include/soc/fsl/qe/qe.h
@@ -243,6 +243,7 @@ static inline int qe_alive_during_sleep(
#define qe_muram_free cpm_muram_free
#define qe_muram_addr cpm_muram_addr
#define qe_muram_offset cpm_muram_offset
+#define qe_muram_dma cpm_muram_dma
#define qe_setbits32(_addr, _v) iowrite32be(ioread32be(_addr) | (_v), (_addr))
#define qe_clrbits32(_addr, _v) iowrite32be(ioread32be(_addr) & ~(_v), (_addr))
Patches currently in stable-queue which might be from christophe.leroy(a)c-s.fr are
queue-4.9/net-ethernet-ucc_geth-fix-mem_part_muram-mode.patch