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net test error: WARNING in __nf_unregister_net_hook

Status: closed as dup on 2021/05/03 20:13
Subsystems: netfilter
[Documentation on labels]
Reported-by: syzbot+33d023f240aa788eb7fe@syzkaller.appspotmail.com
First crash: 1091d, last: 1083d
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
linux-next test error: WARNING in __nf_unregister_net_hook netfilter 21 1087d 1090d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] net test error: WARNING in __nf_unregister_net_hook 1 (2) 2021/05/03 20:13

Sample crash report:
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: 1 PID: 1383 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 net/netfilter/core.c:480
Modules linked in:
CPU: 1 PID: 1383 Comm: kworker/u4:6 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 d8 6d 8a e8 50 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0
RSP: 0018:ffffc900056dfbc0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88814a355600 RCX: 0000000000000000
RDX: ffff8880174d1c40 RSI: ffffffff815c8ba5 RDI: fffff52000adbf6a
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880303d8f20
R13: 0000000000000000 R14: ffff888023ad2600 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9487700000 CR3: 00000000237cd000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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

Crashes (60):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/05/08 00:43 net-old e4d4a27220a3 bc5434be .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/07 22:20 net-old a6f8ee58a8e3 bc5434be .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/07 10:00 net-old a6f8ee58a8e3 f6da8120 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/07 01:21 net-old a6f8ee58a8e3 06585184 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/07 00:00 net-old 6a780f51f87b 06585184 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/06 15:56 net-old 8621436671f3 06585184 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/06 15:56 net-old 8621436671f3 06585184 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/05 20:05 net-old 8621436671f3 06c27ff5 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/05 20:05 net-old 8621436671f3 06c27ff5 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/05 20:05 net-old 8621436671f3 06c27ff5 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/05 00:56 net-old 4c7a94286ef7 06c27ff5 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/05 00:56 net-old 4c7a94286ef7 06c27ff5 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/05 00:56 net-old 4c7a94286ef7 06c27ff5 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 21:11 net-old 4c7a94286ef7 09efdd63 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 21:11 net-old 4c7a94286ef7 09efdd63 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 21:11 net-old 4c7a94286ef7 09efdd63 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 04:55 net-old 1682d8df20aa 09efdd63 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 04:55 net-old 1682d8df20aa 09efdd63 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 04:55 net-old 1682d8df20aa 09efdd63 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 04:18 net-old 1682d8df20aa ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 04:18 net-old 1682d8df20aa ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 04:18 net-old 1682d8df20aa ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 00:30 net-old bd1af6b5fffd ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 00:30 net-old bd1af6b5fffd ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/04 00:30 net-old bd1af6b5fffd ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/03 22:25 net-old 643001b47adc ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/03 22:25 net-old 643001b47adc ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/03 22:25 net-old 643001b47adc ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/03 15:31 net-old f18c51b6513c ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/03 15:31 net-old f18c51b6513c ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/03 15:31 net-old f18c51b6513c ad61f371 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/01 00:11 net-old f18c51b6513c 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/01 00:11 net-old f18c51b6513c 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/05/01 00:11 net-old f18c51b6513c 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/30 22:27 net-old db7c691d7f4d 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/30 22:27 net-old db7c691d7f4d 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/30 22:27 net-old db7c691d7f4d 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 23:32 net-old d4eecfb28b96 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 23:32 net-old d4eecfb28b96 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 23:32 net-old d4eecfb28b96 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 23:01 net-old 57e1d8206e48 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 23:01 net-old 57e1d8206e48 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 23:01 net-old 57e1d8206e48 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 20:32 net-old 9d31d2338950 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 20:32 net-old 9d31d2338950 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
2021/04/29 20:32 net-old 9d31d2338950 77e2b668 .config console log report ci-upstream-net-this-kasan-gce net test error: WARNING in __nf_unregister_net_hook
* Struck through repros no longer work on HEAD.