[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.53' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 774.205256] BUG: unable to handle kernel paging request at ffffed101a131aa9 [ 774.212407] IP: __lock_acquire+0x1cc/0x3f20 [ 774.216713] PGD 23fff2067 P4D 23fff2067 PUD 13fff6067 PMD 0 [ 774.222493] Oops: 0000 [#1] PREEMPT SMP KASAN [ 774.226963] Modules linked in: [ 774.230138] CPU: 1 PID: 7982 Comm: syz-executor287 Not tainted 4.14.295-syzkaller #0 [ 774.237997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 774.247335] task: ffff8880aad264c0 task.stack: ffff8880b3e58000 [ 774.253382] RIP: 0010:__lock_acquire+0x1cc/0x3f20 [ 774.258200] RSP: 0018:ffff8880b3e5f7b8 EFLAGS: 00010806 [ 774.263542] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 774.270795] RDX: 1ffff1101a131aa9 RSI: 0000000000000000 RDI: ffff8880d098d548 [ 774.278202] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 774.285453] R10: 0000000000000001 R11: ffff8880aad264c0 R12: ffff8880d098d548 [ 774.292717] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8becddc0 [ 774.299966] FS: 00005555574da300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 774.308170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 774.314031] CR2: ffffed101a131aa9 CR3: 00000000ac213000 CR4: 00000000003406e0 [ 774.321285] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 774.328537] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 774.335816] Call Trace: [ 774.338391] ? trace_hardirqs_on+0x10/0x10 [ 774.342603] ? kernel_text_address+0xbd/0xf0 [ 774.346991] ? __kernel_text_address+0x9/0x30 [ 774.351463] ? trace_hardirqs_on+0x10/0x10 [ 774.355678] ? lock_acquire+0x170/0x3f0 [ 774.359652] ? dbNextAG+0xa2/0x370 [ 774.363168] lock_acquire+0x170/0x3f0 [ 774.366946] ? diAlloc+0x89f/0x1230 [ 774.370549] ? diAlloc+0x89f/0x1230 [ 774.374158] __mutex_lock+0xc4/0x1310 [ 774.377938] ? diAlloc+0x89f/0x1230 [ 774.381650] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 774.387087] ? diAlloc+0x89f/0x1230 [ 774.390694] ? __mutex_unlock_slowpath+0x75/0x770 [ 774.395514] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 774.400946] ? wait_for_completion_io+0x10/0x10 [ 774.405597] ? dbNextAG+0x2ac/0x370 [ 774.409206] diAlloc+0x89f/0x1230 [ 774.412646] ? do_raw_spin_unlock+0x164/0x220 [ 774.417123] ialloc+0x7b/0x940 [ 774.420293] jfs_mkdir.part.0+0xfd/0x7e0 [ 774.424336] ? lock_acquire+0x170/0x3f0 [ 774.428290] ? lock_downgrade+0x740/0x740 [ 774.432435] ? jfs_mknod+0x60/0x60 [ 774.435955] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 774.441038] ? debug_check_no_obj_freed+0x2c0/0x680 [ 774.446043] ? lock_acquire+0x170/0x3f0 [ 774.449996] ? lock_downgrade+0x740/0x740 [ 774.454122] ? __dquot_initialize+0x228/0xa70 [ 774.458603] ? common_perm+0x3b9/0x560 [ 774.462468] ? dquot_initialize_needed+0x240/0x240 [ 774.467379] ? map_id_up+0xe9/0x180 [ 774.470985] ? security_inode_permission+0xb5/0xf0 [ 774.475891] jfs_mkdir+0x35/0x50 [ 774.479242] vfs_mkdir+0x463/0x6e0 [ 774.482761] SyS_mkdirat+0x1fd/0x270 [ 774.486456] ? SyS_mknod+0x30/0x30 [ 774.489974] ? __close_fd+0x159/0x230 [ 774.493755] ? do_syscall_64+0x4c/0x640 [ 774.497707] ? SyS_mknod+0x30/0x30 [ 774.501229] do_syscall_64+0x1d5/0x640 [ 774.505098] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 774.510266] RIP: 0033:0x7fa8bda58f59 [ 774.513952] RSP: 002b:00007fffeb62e7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 774.521666] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa8bda58f59 [ 774.528933] RDX: 00000000000001ff RSI: 0000000020005280 RDI: ffffffffffffff9c [ 774.536185] RBP: 00007fa8bda187c0 R08: 00005555574da2c0 R09: 0000000000000000 [ 774.543434] R10: 00007fffeb62e6c0 R11: 0000000000000246 R12: 0000000000007366 [ 774.550682] R13: 0000000000000000 R14: 00080000000000f4 R15: 0000000000000000 [ 774.557930] Code: 18 00 00 00 00 48 81 c4 80 01 00 00 44 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 67 2a 00 00 49 81 3c 24 e0 97 2f 8b 0f 84 5f [ 774.577085] RIP: __lock_acquire+0x1cc/0x3f20 RSP: ffff8880b3e5f7b8 [ 774.583408] CR2: ffffed101a131aa9 [ 774.586842] ---[ end trace 5fe6666457a92137 ]--- [ 774.591575] Kernel panic - not syncing: Fatal exception [ 774.597122] Kernel Offset: disabled [ 774.600731] Rebooting in 86400 seconds..