[ 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 '10.128.1.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 627.375077] kasan: CONFIG_KASAN_INLINE enabled [ 627.380406] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 627.389735] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 627.395963] Modules linked in: [ 627.399138] CPU: 1 PID: 7965 Comm: syz-executor399 Not tainted 4.14.294-syzkaller #0 [ 627.406989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 627.416334] task: ffff8880975a8040 task.stack: ffff8880b37e8000 [ 627.422373] RIP: 0010:dtInsertEntry.isra.0+0x10a2/0x1440 [ 627.427793] RSP: 0018:ffff8880b37ef558 EFLAGS: 00010202 [ 627.433142] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900015b90a8 [ 627.440383] RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000008 [ 627.447627] RBP: ffff88808dedf446 R08: ffff8880b37ef738 R09: ffff8880b37ef718 [ 627.454890] R10: 0000000000000000 R11: ffff8880975a8040 R12: ffff8880b5221d9a [ 627.462136] R13: dffffc0000000000 R14: 0000000000000073 R15: ffff88808dedf428 [ 627.469380] FS: 0000555555f50300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 627.477576] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 627.483430] CR2: 00007ffce6e02f80 CR3: 00000000aa1b7000 CR4: 00000000003406e0 [ 627.490688] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 627.497945] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 627.505188] Call Trace: [ 627.507759] ? _raw_spin_unlock+0x29/0x40 [ 627.511884] ? modify_index+0x370/0x370 [ 627.515849] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 627.520840] ? __mark_inode_dirty+0xa9b/0xf40 [ 627.525307] dtInsert+0x47a/0x9e0 [ 627.528733] ? dtSearch+0x1ba0/0x1ba0 [ 627.532505] ? txEnd+0x2d0/0x2d0 [ 627.535845] jfs_create.part.0+0x364/0x800 [ 627.540054] ? jfs_mkdir+0x50/0x50 [ 627.543577] ? jfs_lookup+0x99/0x170 [ 627.547265] ? __dquot_initialize+0x228/0xa70 [ 627.551735] ? dquot_initialize_needed+0x240/0x240 [ 627.556653] ? param_get_aalockpolicy+0x70/0x70 [ 627.561295] ? map_id_up+0xe9/0x180 [ 627.564897] ? security_inode_permission+0xb5/0xf0 [ 627.569815] jfs_create+0x35/0x50 [ 627.573243] ? jfs_create.part.0+0x800/0x800 [ 627.577624] lookup_open+0x77a/0x1750 [ 627.581401] ? vfs_mkdir+0x6e0/0x6e0 [ 627.585090] path_openat+0xe08/0x2970 [ 627.588863] ? path_lookupat+0x780/0x780 [ 627.592899] ? trace_hardirqs_on+0x10/0x10 [ 627.597105] ? __lock_acquire+0x5fc/0x3f20 [ 627.601312] do_filp_open+0x179/0x3c0 [ 627.605085] ? may_open_dev+0xe0/0xe0 [ 627.608864] ? lock_downgrade+0x740/0x740 [ 627.613002] ? do_raw_spin_unlock+0x164/0x220 [ 627.617471] ? _raw_spin_unlock+0x29/0x40 [ 627.621594] ? __alloc_fd+0x1be/0x490 [ 627.625373] do_sys_open+0x296/0x410 [ 627.629066] ? filp_open+0x60/0x60 [ 627.632578] ? __close_fd+0x159/0x230 [ 627.636354] ? do_syscall_64+0x4c/0x640 [ 627.640303] ? SyS_open+0x30/0x30 [ 627.643733] do_syscall_64+0x1d5/0x640 [ 627.647597] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 627.652770] RIP: 0033:0x7f0b5376afd9 [ 627.656455] RSP: 002b:00007ffc28925448 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 627.664136] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0b5376afd9 [ 627.671381] RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c [ 627.678712] RBP: 00007f0b5372a840 R08: 0000000000000000 R09: 0000000000000000 [ 627.685960] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000f8008000 [ 627.693209] R13: 0000000000000000 R14: 00080000000000f8 R15: 0000000000000000 [ 627.700455] Code: c6 40 04 ff e9 9f f9 ff ff e8 2b 50 19 ff 48 8b 84 24 b0 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 df 01 00 [ 627.719522] RIP: dtInsertEntry.isra.0+0x10a2/0x1440 RSP: ffff8880b37ef558 [ 627.727332] ---[ end trace 2d49aa6f9324fe21 ]--- [ 627.732091] Kernel panic - not syncing: Fatal exception [ 627.737601] Kernel Offset: disabled [ 627.741214] Rebooting in 86400 seconds..