[ 34.853735][ T238] ------------[ cut here ]------------ [ 34.859693][ T238] hook not found, pf 3 num 0 [ 34.859759][ T238] WARNING: CPU: 1 PID: 238 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x187/0x580 [ 34.874896][ T238] Modules linked in: [ 34.879062][ T238] CPU: 1 PID: 238 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 34.887376][ T238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.897636][ T238] Workqueue: netns cleanup_net [ 34.902478][ T238] RIP: 0010:__nf_unregister_net_hook+0x187/0x580 [ 34.908942][ T238] Code: 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 03 00 00 8b 53 1c 44 89 e6 48 c7 c7 40 38 c1 89 4c 89 04 24 e8 b1 2c 61 01 <0f> 0b 4c 8b 04 24 e9 ba 00 00 00 48 89 ea 48 c1 e2 04 49 8d 7c 10 [ 34.929268][ T238] RSP: 0018:ffffc9000153fbf0 EFLAGS: 00010282 [ 34.935563][ T238] RAX: 0000000000000000 RBX: ffff8880221a0c00 RCX: 0000000000000000 [ 34.944195][ T238] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520002a7f70 [ 34.952399][ T238] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9f1fa5b [ 34.960419][ T238] R10: ffffed10173e3f4b R11: 0000000000000001 R12: 0000000000000003 [ 34.968592][ T238] R13: ffff8880186a8000 R14: ffff8880221a0c1c R15: ffff8880186a8f20 [ 34.977200][ T238] FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 34.986778][ T238] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.993638][ T238] CR2: 00007f2034e0a000 CR3: 0000000011987000 CR4: 0000000000350ee0 [ 35.001657][ T238] Call Trace: [ 35.004921][ T238] nf_unregister_net_hooks+0xb1/0xf0 [ 35.010223][ T238] cleanup_net+0x3a4/0x990 [ 35.014619][ T238] ? do_raw_spin_lock+0x120/0x2b0 [ 35.019736][ T238] ? ops_free_list.part.0+0x2f0/0x2f0 [ 35.025229][ T238] ? rwlock_bug.part.0+0x90/0x90 [ 35.030542][ T238] ? lock_is_held_type+0xd5/0x130 [ 35.035548][ T238] process_one_work+0x84c/0x13d0 [ 35.040519][ T238] ? lock_release+0x720/0x720 [ 35.045237][ T238] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 35.050628][ T238] ? rwlock_bug.part.0+0x90/0x90 [ 35.055543][ T238] ? _raw_spin_lock_irq+0x41/0x50 [ 35.060601][ T238] worker_thread+0x598/0xf80 [ 35.065175][ T238] ? process_one_work+0x13d0/0x13d0 [ 35.070391][ T238] kthread+0x36f/0x450 [ 35.074459][ T238] ? _raw_spin_unlock_irq+0x1f/0x40 [ 35.079731][ T238] ? __kthread_bind_mask+0x90/0x90 [ 35.084823][ T238] ret_from_fork+0x1f/0x30 [ 35.089277][ T238] Kernel panic - not syncing: panic_on_warn set ... [ 35.095837][ T238] CPU: 1 PID: 238 Comm: kworker/u4:4 Not tainted 5.12.0-syzkaller #0 [ 35.103867][ T238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.113889][ T238] Workqueue: netns cleanup_net [ 35.118620][ T238] Call Trace: [ 35.121872][ T238] dump_stack+0x93/0xc2 [ 35.126010][ T238] panic+0x272/0x505 [ 35.129871][ T238] ? __warn_printk+0xee/0xee [ 35.134430][ T238] ? __nf_unregister_net_hook+0x187/0x580 [ 35.140115][ T238] __warn.cold+0x2b/0x35 [ 35.144336][ T238] ? __nf_unregister_net_hook+0x187/0x580 [ 35.150194][ T238] report_bug+0x15a/0x1b0 [ 35.154490][ T238] handle_bug+0x3c/0x60 [ 35.158611][ T238] exc_invalid_op+0x14/0x40 [ 35.163078][ T238] asm_exc_invalid_op+0x12/0x20 [ 35.167981][ T238] RIP: 0010:__nf_unregister_net_hook+0x187/0x580 [ 35.174358][ T238] Code: 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 03 00 00 8b 53 1c 44 89 e6 48 c7 c7 40 38 c1 89 4c 89 04 24 e8 b1 2c 61 01 <0f> 0b 4c 8b 04 24 e9 ba 00 00 00 48 89 ea 48 c1 e2 04 49 8d 7c 10 [ 35.193952][ T238] RSP: 0018:ffffc9000153fbf0 EFLAGS: 00010282 [ 35.199994][ T238] RAX: 0000000000000000 RBX: ffff8880221a0c00 RCX: 0000000000000000 [ 35.208176][ T238] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520002a7f70 [ 35.216120][ T238] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9f1fa5b [ 35.224067][ T238] R10: ffffed10173e3f4b R11: 0000000000000001 R12: 0000000000000003 [ 35.232014][ T238] R13: ffff8880186a8000 R14: ffff8880221a0c1c R15: ffff8880186a8f20 [ 35.239968][ T238] nf_unregister_net_hooks+0xb1/0xf0 [ 35.245231][ T238] cleanup_net+0x3a4/0x990 [ 35.249707][ T238] ? do_raw_spin_lock+0x120/0x2b0 [ 35.254702][ T238] ? ops_free_list.part.0+0x2f0/0x2f0 [ 35.260041][ T238] ? rwlock_bug.part.0+0x90/0x90 [ 35.264961][ T238] ? lock_is_held_type+0xd5/0x130 [ 35.270048][ T238] process_one_work+0x84c/0x13d0 [ 35.274968][ T238] ? lock_release+0x720/0x720 [ 35.279686][ T238] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 35.285093][ T238] ? rwlock_bug.part.0+0x90/0x90 [ 35.289999][ T238] ? _raw_spin_lock_irq+0x41/0x50 [ 35.294993][ T238] worker_thread+0x598/0xf80 [ 35.299557][ T238] ? process_one_work+0x13d0/0x13d0 [ 35.304724][ T238] kthread+0x36f/0x450 [ 35.309299][ T238] ? _raw_spin_unlock_irq+0x1f/0x40 [ 35.314705][ T238] ? __kthread_bind_mask+0x90/0x90 [ 35.320142][ T238] ret_from_fork+0x1f/0x30 [ 35.328512][ T238] Kernel Offset: disabled [ 35.333116][ T238] Rebooting in 86400 seconds..