------------[ cut here ]------------
name 'pppol2tp'
WARNING: CPU: 0 PID: 31662 at fs/proc/generic.c:709 remove_proc_entry+0x389/0x460 fs/proc/generic.c:709
Modules linked in:
CPU: 0 PID: 31662 Comm: kworker/u4:8 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x389/0x460 fs/proc/generic.c:709
Code: e9 6d fe ff ff e8 37 b2 86 ff 48 c7 c7 c0 c8 d4 8b e8 7b d9 56 07 e8 26 b2 86 ff 4c 89 e6 48 c7 c7 c0 be bc 89 e8 bb 48 10 07 <0f> 0b e9 a4 fe ff ff e8 0b b2 86 ff 48 8d bd d8 00 00 00 48 b8 00
RSP: 0018:ffffc90004f17b78 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 1ffff920009e2f71 RCX: 0000000000000000
RDX: ffff888074804040 RSI: ffffffff815e4208 RDI: fffff520009e2f61
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ddfae R11: 0000000000000000 R12: ffffffff8ac82d60
R13: dffffc0000000000 R14: dffffc0000000000 R15: fffffbfff1ab941c
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0e0cec0000 CR3: 00000000410fe000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:168
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:593
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>