diff options
| author | Shivani Gupta <shivani07g@gmail.com> | 2026-01-05 00:59:05 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-17 16:35:28 +0100 |
| commit | 67550a1130b647bb0d093c9c0a810c69aa6a30a8 (patch) | |
| tree | fad182f6f28978480fe7b0158cfa1d8d5add6a2c /include/net/aligned_data.h | |
| parent | 06dc322dcb20c71748d8247828895043e9486a74 (diff) | |
net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
[ Upstream commit adb25a46dc0a43173f5ea5f5f58fc8ba28970c7c ]
syzbot reported a crash in tc_act_in_hw() during netns teardown where
tcf_idrinfo_destroy() passed an ERR_PTR(-EBUSY) value as a tc_action
pointer, leading to an invalid dereference.
Guard against ERR_PTR entries when iterating the action IDR so teardown
does not call tc_act_in_hw() on an error pointer.
Fixes: 84a7d6797e6a ("net/sched: acp_api: no longer acquire RTNL in tc_action_net_exit()")
Link: https://syzkaller.appspot.com/bug?extid=8f1c492ffa4644ff3826
Reported-by: syzbot+8f1c492ffa4644ff3826@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=8f1c492ffa4644ff3826
Signed-off-by: Shivani Gupta <shivani07g@gmail.com>
Link: https://patch.msgid.link/20260105005905.243423-1-shivani07g@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions