[ 45.902580][ T182] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 45.910614][ T182] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 45.929628][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 45.955369][ T182] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 45.963881][ T182] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 45.974316][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 46.860249][ T8582] can: request_module (can-proto-0) failed. [ 46.876831][ T8582] can: request_module (can-proto-0) failed. [ 46.889174][ T8582] can: request_module (can-proto-0) failed. [ 48.016409][ T37] audit: type=1804 audit(1638963658.060:2): pid=8636 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 [ 48.932982][ T8331] syz-executor.0 (8331) used greatest stack depth: 22768 bytes left [ 48.944703][ T182] ------------[ cut here ]------------ [ 48.950375][ T182] hook not found, pf 3 num 0 [ 48.950458][ T182] WARNING: CPU: 0 PID: 182 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x17a/0x560 [ 48.965820][ T182] Modules linked in: [ 48.969725][ T182] CPU: 0 PID: 182 Comm: kworker/u4:4 Not tainted 5.12.0-rc7-syzkaller #0 [ 48.978756][ T182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.989257][ T182] Workqueue: netns cleanup_net [ 48.994219][ T182] RIP: 0010:__nf_unregister_net_hook+0x17a/0x560 [ 49.001584][ T182] 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 e0 99 9e 89 4c 89 04 24 e8 6e 2f 62 01 <0f> 0b 4c 8b 04 24 e9 ba 00 00 00 48 89 ea 48 c1 e2 04 49 8d 7c 10 [ 49.021400][ T182] RSP: 0018:ffffc900016cfbf0 EFLAGS: 00010282 [ 49.027466][ T182] RAX: 0000000000000000 RBX: ffff888021ef2e00 RCX: 0000000000000000 [ 49.035535][ T182] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520002d9f70 [ 49.043660][ T182] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ba01fa1b [ 49.052369][ T182] R10: ffffed1017403f43 R11: 0000000000000001 R12: 0000000000000003 [ 49.060675][ T182] R13: ffff888027a50000 R14: ffff888021ef2e1c R15: ffff888027a50f60 [ 49.068823][ T182] FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 49.077892][ T182] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.085085][ T182] CR2: 00007fffc3e28df8 CR3: 000000000a68e000 CR4: 00000000003506f0 [ 49.093462][ T182] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.101519][ T182] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.109484][ T182] Call Trace: [ 49.113932][ T182] nf_unregister_net_hooks+0xb1/0xf0 [ 49.119324][ T182] cleanup_net+0x3a4/0x990 [ 49.123825][ T182] ? do_raw_spin_lock+0x200/0x2b0 [ 49.128847][ T182] ? ops_free_list.part.0+0x2d0/0x2d0 [ 49.134476][ T182] ? rwlock_bug.part.0+0x90/0x90 [ 49.139416][ T182] process_one_work+0x84c/0x13b0 [ 49.144434][ T182] ? lock_release+0x720/0x720 [ 49.149249][ T182] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 49.154760][ T182] ? rwlock_bug.part.0+0x90/0x90 [ 49.159874][ T182] ? _raw_spin_lock_irq+0x41/0x50 [ 49.165105][ T182] worker_thread+0x598/0xf80 [ 49.169694][ T182] ? process_one_work+0x13b0/0x13b0 [ 49.175158][ T182] kthread+0x36f/0x450 [ 49.179223][ T182] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.184462][ T182] ? __kthread_bind_mask+0x90/0x90 [ 49.189565][ T182] ret_from_fork+0x1f/0x30 [ 49.194364][ T182] Kernel panic - not syncing: panic_on_warn set ... [ 49.200953][ T182] CPU: 0 PID: 182 Comm: kworker/u4:4 Not tainted 5.12.0-rc7-syzkaller #0 [ 49.209343][ T182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.219377][ T182] Workqueue: netns cleanup_net [ 49.224122][ T182] Call Trace: [ 49.227382][ T182] dump_stack+0xa5/0xe6 [ 49.231524][ T182] panic+0x256/0x4eb [ 49.235402][ T182] ? __warn_printk+0xee/0xee [ 49.239981][ T182] ? __nf_unregister_net_hook+0x17a/0x560 [ 49.245684][ T182] __warn.cold+0x2b/0x35 [ 49.250023][ T182] ? __nf_unregister_net_hook+0x17a/0x560 [ 49.256766][ T182] report_bug+0x15a/0x1b0 [ 49.261086][ T182] handle_bug+0x3c/0x60 [ 49.265306][ T182] exc_invalid_op+0x14/0x40 [ 49.270008][ T182] asm_exc_invalid_op+0x12/0x20 [ 49.276045][ T182] RIP: 0010:__nf_unregister_net_hook+0x17a/0x560 [ 49.282447][ T182] 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 e0 99 9e 89 4c 89 04 24 e8 6e 2f 62 01 <0f> 0b 4c 8b 04 24 e9 ba 00 00 00 48 89 ea 48 c1 e2 04 49 8d 7c 10 [ 49.302115][ T182] RSP: 0018:ffffc900016cfbf0 EFLAGS: 00010282 [ 49.308254][ T182] RAX: 0000000000000000 RBX: ffff888021ef2e00 RCX: 0000000000000000 [ 49.316210][ T182] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520002d9f70 [ 49.324186][ T182] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ba01fa1b [ 49.332144][ T182] R10: ffffed1017403f43 R11: 0000000000000001 R12: 0000000000000003 [ 49.340091][ T182] R13: ffff888027a50000 R14: ffff888021ef2e1c R15: ffff888027a50f60 [ 49.348069][ T182] nf_unregister_net_hooks+0xb1/0xf0 [ 49.353346][ T182] cleanup_net+0x3a4/0x990 [ 49.357826][ T182] ? do_raw_spin_lock+0x200/0x2b0 [ 49.363090][ T182] ? ops_free_list.part.0+0x2d0/0x2d0 [ 49.368445][ T182] ? rwlock_bug.part.0+0x90/0x90 [ 49.373363][ T182] process_one_work+0x84c/0x13b0 [ 49.378301][ T182] ? lock_release+0x720/0x720 [ 49.382954][ T182] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 49.388386][ T182] ? rwlock_bug.part.0+0x90/0x90 [ 49.393306][ T182] ? _raw_spin_lock_irq+0x41/0x50 [ 49.398326][ T182] worker_thread+0x598/0xf80 [ 49.402904][ T182] ? process_one_work+0x13b0/0x13b0 [ 49.408074][ T182] kthread+0x36f/0x450 [ 49.412224][ T182] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.417479][ T182] ? __kthread_bind_mask+0x90/0x90 [ 49.422755][ T182] ret_from_fork+0x1f/0x30 [ 49.427733][ T182] Kernel Offset: disabled [ 49.432237][ T182] Rebooting in 86400 seconds..