[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 519.245184] kasan: CONFIG_KASAN_INLINE enabled [ 519.250170] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 519.260043] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 519.266282] CPU: 1 PID: 8105 Comm: syz-executor418 Not tainted 4.19.211-syzkaller #0 [ 519.274146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 519.283539] RIP: 0010:dtInsertEntry.isra.0+0x1253/0x15d0 [ 519.288967] Code: 40 04 ff e9 2f f9 ff ff e8 1a 38 ec fe 48 8b 84 24 b8 00 00 00 48 8d 78 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d4 01 00 00 [ 519.307845] RSP: 0018:ffff888095357488 EFLAGS: 00010202 [ 519.313184] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82764d04 [ 519.320429] RDX: 0000000000000001 RSI: ffffffff82764d56 RDI: 0000000000000008 [ 519.327674] RBP: 0000000000000000 R08: ffff888095357678 R09: 0000000000000000 [ 519.334918] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88808dbd3446 [ 519.342168] R13: 0000000000000073 R14: ffff88808dbd3448 R15: 0000000000000000 [ 519.349503] FS: 0000555555afc300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 519.357705] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 519.363568] CR2: 000055a74a1f6160 CR3: 00000000abd06000 CR4: 00000000003406e0 [ 519.370816] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 519.378065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 519.385315] Call Trace: [ 519.387890] ? txLock+0x2f0/0x1bd0 [ 519.391431] ? lock_downgrade+0x720/0x720 [ 519.395558] ? modify_index+0x380/0x380 [ 519.399544] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 519.404698] ? __mark_inode_dirty+0x23f/0x1140 [ 519.409261] dtInsert+0x4c2/0xa00 [ 519.413101] ? dtSearch+0x1ef0/0x1ef0 [ 519.416878] ? txEnd+0x320/0x320 [ 519.420238] jfs_create.part.0+0x3c6/0x880 [ 519.424452] ? jfs_mkdir+0x60/0x60 [ 519.427971] ? jfs_lookup+0xb5/0x1c0 [ 519.431699] ? __dquot_initialize+0x298/0xb70 [ 519.436181] ? userns_put+0xb0/0xb0 [ 519.439786] ? dquot_initialize_needed+0x290/0x290 [ 519.444725] ? param_get_aalockpolicy+0x90/0x90 [ 519.449412] ? __d_lookup+0x411/0x710 [ 519.453213] ? generic_permission+0x116/0x4d0 [ 519.457717] ? security_inode_permission+0xc5/0xf0 [ 519.462626] jfs_create+0x3f/0x60 [ 519.466061] ? jfs_create.part.0+0x880/0x880 [ 519.470446] lookup_open+0x893/0x1a20 [ 519.474226] ? vfs_mkdir+0x7a0/0x7a0 [ 519.477975] ? unlazy_walk+0x1a4/0x540 [ 519.481886] ? check_preemption_disabled+0x41/0x280 [ 519.486886] path_openat+0x1094/0x2df0 [ 519.490756] ? path_lookupat+0x8d0/0x8d0 [ 519.494827] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 519.500172] ? mark_held_locks+0xf0/0xf0 [ 519.504212] ? mark_held_locks+0xf0/0xf0 [ 519.508252] do_filp_open+0x18c/0x3f0 [ 519.512031] ? may_open_dev+0xf0/0xf0 [ 519.515811] ? lock_downgrade+0x720/0x720 [ 519.519945] ? lock_acquire+0x170/0x3c0 [ 519.523896] ? __alloc_fd+0x34/0x570 [ 519.527587] ? do_raw_spin_unlock+0x171/0x230 [ 519.532061] ? _raw_spin_unlock+0x29/0x40 [ 519.536189] ? __alloc_fd+0x28d/0x570 [ 519.540007] do_sys_open+0x3b3/0x520 [ 519.543698] ? filp_open+0x70/0x70 [ 519.547223] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 519.552600] ? trace_hardirqs_off_caller+0x6e/0x210 [ 519.557602] ? do_syscall_64+0x21/0x620 [ 519.561554] do_syscall_64+0xf9/0x620 [ 519.565345] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 519.570524] RIP: 0033:0x7fbb7ed93029 [ 519.574237] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 519.593116] RSP: 002b:00007ffc000119f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 519.600801] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fbb7ed93029 [ 519.608051] RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c [ 519.615305] RBP: 00007fbb7ed52890 R08: 0000000000000000 R09: 0000000000000000 [ 519.622560] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000f8008000 [ 519.629809] R13: 0000000000000000 R14: 00080000000000f8 R15: 0000000000000000 [ 519.637059] Modules linked in: [ 519.641014] ---[ end trace 8d536a82163ab352 ]--- [ 519.645817] RIP: 0010:dtInsertEntry.isra.0+0x1253/0x15d0 [ 519.651278] Code: 40 04 ff e9 2f f9 ff ff e8 1a 38 ec fe 48 8b 84 24 b8 00 00 00 48 8d 78 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d4 01 00 00 [ 519.670582] RSP: 0018:ffff888095357488 EFLAGS: 00010202 [ 519.675984] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82764d04 [ 519.683244] RDX: 0000000000000001 RSI: ffffffff82764d56 RDI: 0000000000000008 [ 519.690539] RBP: 0000000000000000 R08: ffff888095357678 R09: 0000000000000000 [ 519.697846] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88808dbd3446 [ 519.705100] R13: 0000000000000073 R14: ffff88808dbd3448 R15: 0000000000000000 [ 519.712932] FS: 0000555555afc300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 519.721196] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 519.727093] CR2: 000055a74a1f6160 CR3: 00000000abd06000 CR4: 00000000003406e0 [ 519.734353] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 519.741778] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 519.749095] Kernel panic - not syncing: Fatal exception [ 519.754598] Kernel Offset: disabled [ 519.758218] Rebooting in 86400 seconds..