[ 40.727935][ T29] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.748891][ T29] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.771585][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 40.782096][ T29] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.790947][ T29] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.799544][ T4881] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.637240][ T8376] can: request_module (can-proto-0) failed. [ 41.649308][ T8376] can: request_module (can-proto-0) failed. [ 41.662670][ T8376] can: request_module (can-proto-0) failed. [ 42.745457][ T38] audit: type=1804 audit(1624363505.202:2): pid=8692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="scp" name="/root/syz-executor" dev="sda1" ino=13857 res=1 errno=0 [ 43.548238][ T126] ------------[ cut here ]------------ [ 43.555150][ T126] hook not found, pf 3 num 0 [ 43.555262][ T126] WARNING: CPU: 1 PID: 126 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x17a/0x560 [ 43.572796][ T126] Modules linked in: [ 43.576920][ T126] CPU: 1 PID: 126 Comm: kworker/u4:3 Not tainted 5.12.0-rc7-syzkaller #0 [ 43.586469][ T126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.588611][ T8393] syz-executor.0 (8393) used greatest stack depth: 23088 bytes left [ 43.600310][ T126] Workqueue: netns cleanup_net [ 43.610966][ T126] RIP: 0010:__nf_unregister_net_hook+0x17a/0x560 [ 43.617410][ T126] Code: 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a7 03 00 00 8b 53 1c 44 89 e6 48 c7 c7 20 bc 9e 89 4c 89 04 24 e8 fe 3a 62 01 <0f> 0b 4c 8b 04 24 e9 ba 00 00 00 48 89 ea 48 c1 e2 04 49 8d 7c 10 [ 43.638421][ T126] RSP: 0018:ffffc9000137fbf0 EFLAGS: 00010282 [ 43.644603][ T126] RAX: 0000000000000000 RBX: ffff888021b90900 RCX: 0000000000000000 [ 43.653113][ T126] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff5200026ff70 [ 43.661138][ T126] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ba11fa1b [ 43.669105][ T126] R10: ffffed1017423f43 R11: 0000000000000001 R12: 0000000000000003 [ 43.677528][ T126] R13: ffff888019710000 R14: ffff888021b9091c R15: ffff888019710f60 [ 43.686177][ T126] FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 43.696116][ T126] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.703187][ T126] CR2: 00007f450997f000 CR3: 00000000212ef000 CR4: 00000000001506f0 [ 43.712301][ T126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.720464][ T126] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.728516][ T126] Call Trace: [ 43.732585][ T126] nf_unregister_net_hooks+0xb1/0xf0 [ 43.738127][ T126] cleanup_net+0x3a4/0x990 [ 43.744400][ T126] ? ops_free_list.part.0+0x2d0/0x2d0 [ 43.750431][ T126] process_one_work+0x84c/0x13b0 [ 43.756000][ T126] ? lock_release+0x720/0x720 [ 43.760935][ T126] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 43.766437][ T126] ? rwlock_bug.part.0+0x90/0x90 [ 43.771739][ T126] ? _raw_spin_lock_irq+0x41/0x50 [ 43.776770][ T126] worker_thread+0x598/0xf80 [ 43.781615][ T126] ? process_one_work+0x13b0/0x13b0 [ 43.786894][ T126] kthread+0x36f/0x450 [ 43.791307][ T126] ? _raw_spin_unlock_irq+0x1f/0x40 [ 43.796500][ T126] ? __kthread_bind_mask+0x90/0x90 [ 43.802538][ T126] ret_from_fork+0x1f/0x30 [ 43.807096][ T126] Kernel panic - not syncing: panic_on_warn set ... [ 43.813675][ T126] CPU: 1 PID: 126 Comm: kworker/u4:3 Not tainted 5.12.0-rc7-syzkaller #0 [ 43.822850][ T126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.833062][ T126] Workqueue: netns cleanup_net [ 43.838013][ T126] Call Trace: [ 43.841285][ T126] dump_stack+0xa5/0xe6 [ 43.845436][ T126] panic+0x256/0x4eb [ 43.849491][ T126] ? __warn_printk+0xee/0xee [ 43.854175][ T126] ? __nf_unregister_net_hook+0x17a/0x560 [ 43.860734][ T126] __warn.cold+0x2b/0x35 [ 43.866334][ T126] ? __nf_unregister_net_hook+0x17a/0x560 [ 43.872269][ T126] report_bug+0x15a/0x1b0 [ 43.876694][ T126] handle_bug+0x3c/0x60 [ 43.880885][ T126] exc_invalid_op+0x14/0x40 [ 43.885462][ T126] asm_exc_invalid_op+0x12/0x20 [ 43.890713][ T126] RIP: 0010:__nf_unregister_net_hook+0x17a/0x560 [ 43.897902][ T126] Code: 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a7 03 00 00 8b 53 1c 44 89 e6 48 c7 c7 20 bc 9e 89 4c 89 04 24 e8 fe 3a 62 01 <0f> 0b 4c 8b 04 24 e9 ba 00 00 00 48 89 ea 48 c1 e2 04 49 8d 7c 10 [ 43.917836][ T126] RSP: 0018:ffffc9000137fbf0 EFLAGS: 00010282 [ 43.923900][ T126] RAX: 0000000000000000 RBX: ffff888021b90900 RCX: 0000000000000000 [ 43.931862][ T126] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff5200026ff70 [ 43.939834][ T126] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ba11fa1b [ 43.948142][ T126] R10: ffffed1017423f43 R11: 0000000000000001 R12: 0000000000000003 [ 43.956112][ T126] R13: ffff888019710000 R14: ffff888021b9091c R15: ffff888019710f60 [ 43.964613][ T126] nf_unregister_net_hooks+0xb1/0xf0 [ 43.970067][ T126] cleanup_net+0x3a4/0x990 [ 43.974568][ T126] ? ops_free_list.part.0+0x2d0/0x2d0 [ 43.980094][ T126] process_one_work+0x84c/0x13b0 [ 43.985270][ T126] ? lock_release+0x720/0x720 [ 43.989952][ T126] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 43.995503][ T126] ? rwlock_bug.part.0+0x90/0x90 [ 44.000413][ T126] ? _raw_spin_lock_irq+0x41/0x50 [ 44.005414][ T126] worker_thread+0x598/0xf80 [ 44.010073][ T126] ? process_one_work+0x13b0/0x13b0 [ 44.015257][ T126] kthread+0x36f/0x450 [ 44.019398][ T126] ? _raw_spin_unlock_irq+0x1f/0x40 [ 44.024655][ T126] ? __kthread_bind_mask+0x90/0x90 [ 44.029741][ T126] ret_from_fork+0x1f/0x30 [ 44.035989][ T126] Kernel Offset: disabled [ 44.040516][ T126] Rebooting in 86400 seconds..