[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.81' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 34.942758] BUG: unable to handle kernel paging request at fffffffffffffff0 [ 34.949879] PGD 9e6e067 P4D 9e6e067 PUD 9e70067 PMD 0 [ 34.955138] Oops: 0000 [#1] PREEMPT SMP KASAN [ 34.959611] CPU: 0 PID: 8790 Comm: syz-executor771 Not tainted 4.19.163-syzkaller #0 [ 34.967467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.976810] RIP: 0010:plist_del+0x96/0x450 [ 34.981076] Code: 18 4d 39 ee 74 31 e8 b9 12 55 f9 4d 8d 6e f0 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 3d 03 00 00 <49> 8b 46 f0 49 39 c5 0f 84 f2 01 00 00 e8 88 12 55 f9 4c 8d 73 10 [ 34.999952] RSP: 0018:ffff888090ec7b30 EFLAGS: 00010046 [ 35.005388] RAX: dffffc0000000000 RBX: ffff888235f3d240 RCX: ffffffff814d9120 [ 35.012667] RDX: 1ffffffffffffffe RSI: ffffffff880fbd57 RDI: ffff888235f3d240 [ 35.019914] RBP: ffff888235f3d248 R08: 0000000000000001 R09: 0000000000000002 [ 35.027197] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888235f3d258 [ 35.034442] R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000000000 [ 35.041691] FS: 00000000012eb880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.049892] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.055748] CR2: fffffffffffffff0 CR3: 00000000a9f61000 CR4: 00000000001406f0 [ 35.062997] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.070258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.077516] Call Trace: [ 35.080109] pm_qos_update_target+0x803/0xa40 [ 35.084585] pm_qos_remove_request.part.0+0xf2/0x3c0 [ 35.089667] pm_qos_remove_request+0x52/0x80 [ 35.094061] snd_pcm_common_ioctl+0x12a0/0x29a0 [ 35.098710] ? mark_held_locks+0xf0/0xf0 [ 35.102746] ? __lock_acquire+0x6de/0x3ff0 [ 35.106958] ? snd_pcm_status_user+0x180/0x180 [ 35.111519] ? debug_check_no_obj_freed+0x201/0x482 [ 35.116524] ? lock_downgrade+0x720/0x720 [ 35.120649] snd_pcm_ioctl+0x7e/0xb0 [ 35.124337] ? snd_pcm_common_ioctl+0x29a0/0x29a0 [ 35.129169] do_vfs_ioctl+0xcdb/0x12e0 [ 35.133031] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 35.138110] ? debug_check_no_obj_freed+0x201/0x482 [ 35.143117] ? ioctl_preallocate+0x200/0x200 [ 35.147501] ? putname+0xe1/0x120 [ 35.150932] ? putname+0xe1/0x120 [ 35.154361] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.159369] ? kmem_cache_free+0x226/0x260 [ 35.163592] ? putname+0xe1/0x120 [ 35.167039] ? do_sys_open+0x2bf/0x520 [ 35.170910] ? filp_open+0x70/0x70 [ 35.174426] ksys_ioctl+0x9b/0xc0 [ 35.177854] __x64_sys_ioctl+0x6f/0xb0 [ 35.181718] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.186278] do_syscall_64+0xf9/0x620 [ 35.190072] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.195235] RIP: 0033:0x4450e9 [ 35.198405] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 35.217295] RSP: 002b:00007ffe3df3be58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.224977] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004450e9 [ 35.232224] RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000004 [ 35.239472] RBP: 000000000000886a R08: 00000000004002e0 R09: 00000000004002e0 [ 35.246716] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000402200 [ 35.253960] R13: 0000000000402290 R14: 0000000000000000 R15: 0000000000000000 [ 35.261216] Modules linked in: [ 35.264385] CR2: fffffffffffffff0 [ 35.267818] ---[ end trace 3ae3975fd59c117b ]--- [ 35.272559] RIP: 0010:plist_del+0x96/0x450 [ 35.276768] Code: 18 4d 39 ee 74 31 e8 b9 12 55 f9 4d 8d 6e f0 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 3d 03 00 00 <49> 8b 46 f0 49 39 c5 0f 84 f2 01 00 00 e8 88 12 55 f9 4c 8d 73 10 [ 35.295642] RSP: 0018:ffff888090ec7b30 EFLAGS: 00010046 [ 35.300989] RAX: dffffc0000000000 RBX: ffff888235f3d240 RCX: ffffffff814d9120 [ 35.308233] RDX: 1ffffffffffffffe RSI: ffffffff880fbd57 RDI: ffff888235f3d240 [ 35.315496] RBP: ffff888235f3d248 R08: 0000000000000001 R09: 0000000000000002 [ 35.322741] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888235f3d258 [ 35.329986] R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000000000 [ 35.337231] FS: 00000000012eb880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.345432] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.351289] CR2: fffffffffffffff0 CR3: 00000000a9f61000 CR4: 00000000001406f0 [ 35.379120] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.386366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.393633] Kernel panic - not syncing: Fatal exception [ 36.505947] Shutting down cpus with NMI [ 36.510701] Kernel Offset: disabled [ 36.514313] Rebooting in 86400 seconds..