github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 12:44:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

wifi: mac80211: use ifa_dev from event argument

Browse Source 
During address teardown, the netdevice's ip_ptr might be cleared before
the inetaddr notifier is called. In this case, __in_dev_get_rtnl()
returns NULL, causing the notifier to abort early and fail to update
the ARP filter.

Fix this by using the in_device pointer from the event argument
(ifa->ifa_dev) which is guaranteed to be valid.

Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Yuyang Huang <yuyanghuang@google.com>
Link: https://patch.msgid.link/20260711005405.2861680-3-yuyanghuang@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Yuyang Huang 2026-07-11 09:54:03 +09:00 committed by Jakub Kicinski
parent 3cbbc9fa33
commit e5b14e9ae8
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/mac80211/main.c
View File

@ -588,9 +588,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return NOTIFY_DONE;
idev = __in_dev_get_rtnl(sdata->dev);
if (!idev)
return NOTIFY_DONE;
idev = ifa->ifa_dev;
ifmgd = &sdata->u.mgd;