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* [syzbot] upstream test error: WARNING in __nf_unregister_net_hook
@ 2021-05-03 17:20 syzbot
  2021-05-03 20:13 ` Florian Westphal
  0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2021-05-03 17:20 UTC (permalink / raw)
  To: coreteam, davem, fw, kadlec, kuba, linux-kernel, netdev,
	netfilter-devel, pablo, syzkaller-bugs

Hello,

syzbot found the following issue on:

HEAD commit:    9ccce092 Merge tag 'for-linus-5.13-ofs-1' of git://git.ker..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15303b33d00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=27df24136354948b
dashboard link: https://syzkaller.appspot.com/bug?extid=7ad5cd1615f2d89c6e7e

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7ad5cd1615f2d89c6e7e@syzkaller.appspotmail.com

wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
------------[ cut here ]------------
hook not found, pf 3 num 0
WARNING: CPU: 0 PID: 334 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 net/netfilter/core.c:480
Modules linked in:
CPU: 0 PID: 334 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 net/netfilter/core.c:480
Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 15 6e 8a e8 f6 3c 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 3e 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0
RSP: 0018:ffffc90001fcfbc0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88814459f300 RCX: 0000000000000000
RDX: ffff888013648000 RSI: ffffffff815caa75 RDI: fffff520003f9f6a
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815c48de R11: 0000000000000000 R12: ffff888033e98f20
R13: 0000000000000000 R14: ffff888012825c00 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000a00000 CR3: 00000000159c4000 CR4: 0000000000350ee0
Call Trace:
 nf_unregister_net_hook net/netfilter/core.c:502 [inline]
 nf_unregister_net_hooks+0x117/0x160 net/netfilter/core.c:576
 arpt_unregister_table_pre_exit+0x67/0x80 net/ipv4/netfilter/arp_tables.c:1565
 ops_pre_exit_list net/core/net_namespace.c:165 [inline]
 cleanup_net+0x451/0xb10 net/core/net_namespace.c:583
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [syzbot] upstream test error: WARNING in __nf_unregister_net_hook
  2021-05-03 17:20 [syzbot] upstream test error: WARNING in __nf_unregister_net_hook syzbot
@ 2021-05-03 20:13 ` Florian Westphal
  0 siblings, 0 replies; 2+ messages in thread
From: Florian Westphal @ 2021-05-03 20:13 UTC (permalink / raw)
  To: syzbot
  Cc: coreteam, davem, fw, kadlec, kuba, linux-kernel, netdev,
	netfilter-devel, pablo, syzkaller-bugs

syzbot <syzbot+7ad5cd1615f2d89c6e7e@syzkaller.appspotmail.com> wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    9ccce092 Merge tag 'for-linus-5.13-ofs-1' of git://git.ker..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=15303b33d00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=27df24136354948b
> dashboard link: https://syzkaller.appspot.com/bug?extid=7ad5cd1615f2d89c6e7e
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+7ad5cd1615f2d89c6e7e@syzkaller.appspotmail.com

#syz dup: linux-next test error: WARNING in __nf_unregister_net_hook

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2021-05-03 17:20 [syzbot] upstream test error: WARNING in __nf_unregister_net_hook syzbot
2021-05-03 20:13 ` Florian Westphal

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