]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ipv6: fix WARNING in ip6_route_net_exit_late()
authorZhengchao Shao <shaozhengchao@huawei.com>
Wed, 2 Nov 2022 02:06:10 +0000 (10:06 +0800)
committerJakub Kicinski <kuba@kernel.org>
Thu, 3 Nov 2022 03:47:14 +0000 (20:47 -0700)
commit768b3c745fe5789f2430bdab02f35a9ad1148d97
treec52548b879ec5c541b9482225806f3d4ca9a33bd
parent628ac04a75ed5ff13647e725f40192da22ef2be8
ipv6: fix WARNING in ip6_route_net_exit_late()

During the initialization of ip6_route_net_init_late(), if file
ipv6_route or rt6_stats fails to be created, the initialization is
successful by default. Therefore, the ipv6_route or rt6_stats file
doesn't be found during the remove in ip6_route_net_exit_late(). It
will cause WRNING.

The following is the stack information:
name 'rt6_stats'
WARNING: CPU: 0 PID: 9 at fs/proc/generic.c:712 remove_proc_entry+0x389/0x460
Modules linked in:
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x389/0x460
PKRU: 55555554
Call Trace:
<TASK>
ops_exit_list+0xb0/0x170
cleanup_net+0x4ea/0xb00
process_one_work+0x9bf/0x1710
worker_thread+0x665/0x1080
kthread+0x2e4/0x3a0
ret_from_fork+0x1f/0x30
</TASK>

Fixes: cdb1876192db ("[NETNS][IPV6] route6 - create route6 proc files for the namespace")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20221102020610.351330-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/ipv6/route.c