[ 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 '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.828076] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program executing program [ 37.900835] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 37.967506] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program executing program [ 38.043392] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.118172] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 38.183743] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.270111] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.352208] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.446436] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.528404] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.622041] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.702187] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program executing program [ 38.791570] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.875880] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 38.952241] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.056622] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program executing program [ 39.127739] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.220409] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 39.287214] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.367938] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program executing program [ 39.436547] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program executing program [ 39.510967] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.582012] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.640261] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 39.711741] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.782755] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) executing program [ 39.857439] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 39.882898] WARNING: CPU: 1 PID: 8112 at fs/udf/udfdecl.h:122 udf_free_inode+0x29b/0x320 [ 39.891306] Kernel panic - not syncing: panic_on_warn set ... [ 39.891306] [ 39.898665] CPU: 1 PID: 8112 Comm: syz-executor178 Not tainted 4.19.211-syzkaller #0 [ 39.906525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.915859] Call Trace: [ 39.918436] dump_stack+0x1fc/0x2ef [ 39.922051] panic+0x26a/0x50e [ 39.925224] ? __warn_printk+0xf3/0xf3 [ 39.929099] ? udf_free_inode+0x29b/0x320 [ 39.933229] ? __probe_kernel_read+0x130/0x1b0 [ 39.937796] ? __warn.cold+0x5/0x5a [ 39.941406] ? __warn+0xe4/0x200 [ 39.944754] ? udf_free_inode+0x29b/0x320 [ 39.948885] __warn.cold+0x20/0x5a [ 39.952409] ? udf_free_inode+0x29b/0x320 [ 39.956539] report_bug+0x262/0x2b0 [ 39.960151] do_error_trap+0x1d7/0x310 [ 39.964023] ? math_error+0x310/0x310 [ 39.967805] ? __mutex_lock+0x368/0x1190 [ 39.971846] ? error_entry+0x72/0xd0 [ 39.975542] ? trace_hardirqs_off_caller+0x6e/0x210 [ 39.980543] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.985370] invalid_op+0x14/0x20 [ 39.988810] RIP: 0010:udf_free_inode+0x29b/0x320 [ 39.993547] 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 [ 40.012432] RSP: 0018:ffff8880b2fbfb90 EFLAGS: 00010293 [ 40.017776] RAX: ffff8880b06b8240 RBX: ffff88808ad24bc0 RCX: ffffffff826e5f87 [ 40.025027] RDX: 0000000000000000 RSI: ffffffff826e603b RDI: 0000000000000005 [ 40.032290] RBP: ffff8880b322dd40 R08: 0000000000000000 R09: 0000000000000000 [ 40.039546] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a3118800 [ 40.046885] R13: ffff8880b322ddf8 R14: 0000000000000001 R15: ffff8880a3118e80 [ 40.054156] ? udf_free_inode+0x1e7/0x320 [ 40.058293] ? udf_free_inode+0x29b/0x320 [ 40.062430] udf_evict_inode+0x350/0x590 [ 40.066474] ? udf_setsize+0x1030/0x1030 [ 40.070518] evict+0x2ed/0x760 [ 40.073699] iput+0x4f1/0x860 [ 40.076793] udf_sb_free_partitions.isra.0+0x751/0xba0 [ 40.082056] udf_put_super+0x172/0x290 [ 40.085925] ? udf_sb_free_partitions.isra.0+0xba0/0xba0 [ 40.091362] generic_shutdown_super+0x144/0x370 [ 40.096017] kill_block_super+0x97/0xf0 [ 40.099977] deactivate_locked_super+0x94/0x160 [ 40.104626] deactivate_super+0x174/0x1a0 [ 40.108783] ? deactivate_locked_super+0x160/0x160 [ 40.113817] ? dput+0x31/0x640 [ 40.117035] cleanup_mnt+0x1a8/0x290 [ 40.120763] task_work_run+0x148/0x1c0 [ 40.124642] exit_to_usermode_loop+0x251/0x2a0 [ 40.129214] do_syscall_64+0x538/0x620 [ 40.133096] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.138284] RIP: 0033:0x7f9c30a01247 [ 40.141989] Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 40.160884] RSP: 002b:00007ffdb1152de8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 40.168582] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9c30a01247 [ 40.175836] RDX: 00007ffdb1152eaa RSI: 000000000000000a RDI: 00007ffdb1152ea0 [ 40.183094] RBP: 00007ffdb1152ea0 R08: 00000000ffffffff R09: 00007ffdb1152c80 [ 40.190347] R10: 0000555556da9683 R11: 0000000000000206 R12: 00007ffdb1153f60 [ 40.197601] R13: 0000555556da95f0 R14: 00007ffdb1152e10 R15: 00007ffdb1153f80 [ 40.205249] Kernel Offset: disabled [ 40.208932] Rebooting in 86400 seconds..