[ 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 '10.128.1.49' (ECDSA) to the list of known hosts. syzkaller login: [ 35.035158] IPVS: ftp: loaded support on port[0] = 21 executing program [ 35.112824] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 35.139157] WARNING: CPU: 0 PID: 8125 at fs/udf/udfdecl.h:122 udf_free_inode+0x29b/0x320 [ 35.147527] Kernel panic - not syncing: panic_on_warn set ... [ 35.147527] [ 35.154891] CPU: 0 PID: 8125 Comm: syz-executor283 Not tainted 4.19.211-syzkaller #0 [ 35.162750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 35.172084] Call Trace: [ 35.174658] dump_stack+0x1fc/0x2ef [ 35.178271] panic+0x26a/0x50e [ 35.181446] ? __warn_printk+0xf3/0xf3 [ 35.185323] ? udf_free_inode+0x29b/0x320 [ 35.189562] ? __probe_kernel_read+0x130/0x1b0 [ 35.194126] ? __warn.cold+0x5/0x5a [ 35.197747] ? __warn+0xe4/0x200 [ 35.201105] ? udf_free_inode+0x29b/0x320 [ 35.205237] __warn.cold+0x20/0x5a [ 35.208772] ? udf_free_inode+0x29b/0x320 [ 35.212933] report_bug+0x262/0x2b0 [ 35.216551] do_error_trap+0x1d7/0x310 [ 35.220429] ? math_error+0x310/0x310 [ 35.224217] ? error_entry+0x72/0xd0 [ 35.227916] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.232929] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.237760] invalid_op+0x14/0x20 [ 35.241199] RIP: 0010:udf_free_inode+0x29b/0x320 [ 35.246022] Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 29 83 6d 24 01 e9 76 fe ff ff e8 3c 25 f4 fe 0f 0b e8 35 25 f4 fe <0f> 0b e9 4e ff ff ff 48 89 df e8 f6 00 2a ff e9 fc fd ff ff e8 7c [ 35.264908] RSP: 0018:ffff8880b0cf7a58 EFLAGS: 00010293 [ 35.270252] RAX: ffff8880b2894540 RBX: ffff88808a83fbc0 RCX: ffffffff826e5f87 [ 35.277501] RDX: 0000000000000000 RSI: ffffffff826e603b RDI: 0000000000000005 [ 35.284753] RBP: ffff8880a29b37c0 R08: 0000000000000000 R09: 0000000000000000 [ 35.292002] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b02b4780 [ 35.299248] R13: ffff8880a29b3878 R14: 0000000000000001 R15: ffff8880b02b4e00 [ 35.306509] ? udf_free_inode+0x1e7/0x320 [ 35.310637] ? udf_free_inode+0x29b/0x320 [ 35.314770] ? udf_free_inode+0x29b/0x320 [ 35.318903] udf_evict_inode+0x350/0x590 [ 35.322943] ? udf_setsize+0x1030/0x1030 [ 35.326983] evict+0x2ed/0x760 [ 35.330155] iput+0x4f1/0x860 [ 35.333244] udf_sb_free_partitions.isra.0+0x751/0xba0 [ 35.338503] udf_put_super+0x172/0x290 [ 35.342371] ? udf_sb_free_partitions.isra.0+0xba0/0xba0 [ 35.347804] generic_shutdown_super+0x144/0x370 [ 35.352455] kill_block_super+0x97/0xf0 [ 35.356432] deactivate_locked_super+0x94/0x160 [ 35.361083] deactivate_super+0x174/0x1a0 [ 35.365216] ? deactivate_locked_super+0x160/0x160 [ 35.370127] ? dput+0x31/0x640 [ 35.373303] cleanup_mnt+0x1a8/0x290 [ 35.376998] task_work_run+0x148/0x1c0 [ 35.380868] do_exit+0xbf3/0x2be0 [ 35.384302] ? lock_downgrade+0x720/0x720 [ 35.388432] ? mm_update_next_owner+0x650/0x650 [ 35.393082] ? up_read+0x17/0x110 [ 35.396519] ? __do_page_fault+0x180/0xd60 [ 35.400733] do_group_exit+0x125/0x310 [ 35.404602] __x64_sys_exit_group+0x3a/0x50 [ 35.408902] do_syscall_64+0xf9/0x620 [ 35.412685] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.417853] RIP: 0033:0x7fb0aab3aca9 [ 35.421547] Code: Bad RIP value. [ 35.424941] RSP: 002b:00007ffed6356ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 35.432639] RAX: ffffffffffffffda RBX: 00007fb0aabb13f0 RCX: 00007fb0aab3aca9 [ 35.439889] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 35.447172] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fb0aababe40 [ 35.454420] R10: 00007fb0aababe40 R11: 0000000000000246 R12: 00007fb0aabb13f0 [ 35.461671] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 35.469233] Kernel Offset: disabled [ 35.472896] Rebooting in 86400 seconds..