[ 46.241361][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.257258][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.272847][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.286978][ T141] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.297105][ T141] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.308916][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 47.296626][ T8444] can: request_module (can-proto-0) failed. [ 47.310358][ T8444] can: request_module (can-proto-0) failed. [ 47.325593][ T8444] can: request_module (can-proto-0) failed. [ 48.462274][ T37] audit: type=1804 audit(1620210596.496:2): pid=8757 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 [ 49.080307][ T8449] syz-executor.0 (8449) used greatest stack depth: 23032 bytes left [ 49.082116][ T9] ------------[ cut here ]------------ [ 49.096974][ T9] hook not found, pf 3 num 0 [ 49.097075][ T9] WARNING: CPU: 1 PID: 9 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x17a/0x560 [ 49.113539][ T9] Modules linked in: [ 49.118132][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-rc7-syzkaller #0 [ 49.128199][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.138820][ T9] Workqueue: netns cleanup_net [ 49.144133][ T9] RIP: 0010:__nf_unregister_net_hook+0x17a/0x560 [ 49.151949][ T9] 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 [ 49.175636][ T9] RSP: 0018:ffffc90000ce7bf0 EFLAGS: 00010282 [ 49.184779][ T9] RAX: 0000000000000000 RBX: ffff888021b54b00 RCX: 0000000000000000 [ 49.194437][ T9] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff5200019cf70 [ 49.205283][ T9] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ba11fa1b [ 49.215831][ T9] R10: ffffed1017423f43 R11: 0000000000000001 R12: 0000000000000003 [ 49.227533][ T9] R13: ffff8880197b8000 R14: ffff888021b54b1c R15: ffff8880197b8f60 [ 49.237135][ T9] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 49.246749][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.253711][ T9] CR2: 00007eff50a036c0 CR3: 000000000a68e000 CR4: 00000000001506e0 [ 49.262154][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.270931][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.280351][ T9] Call Trace: [ 49.284220][ T9] nf_unregister_net_hooks+0xb1/0xf0 [ 49.289693][ T9] cleanup_net+0x3a4/0x990 [ 49.294611][ T9] ? ops_free_list.part.0+0x2d0/0x2d0 [ 49.301120][ T9] process_one_work+0x84c/0x13b0 [ 49.307459][ T9] ? lock_release+0x720/0x720 [ 49.313154][ T9] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 49.319361][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 49.326527][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 49.332505][ T9] worker_thread+0x598/0xf80 [ 49.338115][ T9] ? process_one_work+0x13b0/0x13b0 [ 49.344962][ T9] kthread+0x36f/0x450 [ 49.350644][ T9] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.356119][ T9] ? __kthread_bind_mask+0x90/0x90 [ 49.363655][ T9] ret_from_fork+0x1f/0x30 [ 49.369465][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 49.376920][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-rc7-syzkaller #0 [ 49.385718][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.402163][ T9] Workqueue: netns cleanup_net [ 49.407730][ T9] Call Trace: [ 49.411469][ T9] dump_stack+0xa5/0xe6 [ 49.415729][ T9] panic+0x256/0x4eb [ 49.419736][ T9] ? __warn_printk+0xee/0xee [ 49.425953][ T9] ? __nf_unregister_net_hook+0x17a/0x560 [ 49.432103][ T9] __warn.cold+0x2b/0x35 [ 49.436460][ T9] ? __nf_unregister_net_hook+0x17a/0x560 [ 49.442678][ T9] report_bug+0x15a/0x1b0 [ 49.447009][ T9] handle_bug+0x3c/0x60 [ 49.451574][ T9] exc_invalid_op+0x14/0x40 [ 49.456430][ T9] asm_exc_invalid_op+0x12/0x20 [ 49.461848][ T9] RIP: 0010:__nf_unregister_net_hook+0x17a/0x560 [ 49.468870][ T9] 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 [ 49.490694][ T9] RSP: 0018:ffffc90000ce7bf0 EFLAGS: 00010282 [ 49.497361][ T9] RAX: 0000000000000000 RBX: ffff888021b54b00 RCX: 0000000000000000 [ 49.506104][ T9] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff5200019cf70 [ 49.514968][ T9] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ba11fa1b [ 49.523797][ T9] R10: ffffed1017423f43 R11: 0000000000000001 R12: 0000000000000003 [ 49.533933][ T9] R13: ffff8880197b8000 R14: ffff888021b54b1c R15: ffff8880197b8f60 [ 49.542271][ T9] nf_unregister_net_hooks+0xb1/0xf0 [ 49.547655][ T9] cleanup_net+0x3a4/0x990 [ 49.552535][ T9] ? ops_free_list.part.0+0x2d0/0x2d0 [ 49.557993][ T9] process_one_work+0x84c/0x13b0 [ 49.563456][ T9] ? lock_release+0x720/0x720 [ 49.568506][ T9] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 49.575752][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 49.581244][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 49.587282][ T9] worker_thread+0x598/0xf80 [ 49.594199][ T9] ? process_one_work+0x13b0/0x13b0 [ 49.599925][ T9] kthread+0x36f/0x450 [ 49.605088][ T9] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.610617][ T9] ? __kthread_bind_mask+0x90/0x90 [ 49.616302][ T9] ret_from_fork+0x1f/0x30 [ 49.623373][ T9] Kernel Offset: disabled [ 49.628483][ T9] Rebooting in 86400 seconds..