[ 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 '10.128.10.21' (ECDSA) to the list of known hosts. syzkaller login: [ 30.135408] IPVS: ftp: loaded support on port[0] = 21 executing program [ 30.212102] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 30.242431] ------------[ cut here ]------------ [ 30.247278] WARNING: CPU: 0 PID: 7987 at fs/udf/udfdecl.h:118 udf_free_inode+0x27a/0x2f0 [ 30.256055] Kernel panic - not syncing: panic_on_warn set ... [ 30.256055] [ 30.264110] CPU: 0 PID: 7987 Comm: syz-executor218 Not tainted 4.14.295-syzkaller #0 [ 30.271972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 30.281395] Call Trace: [ 30.283975] dump_stack+0x1b2/0x281 [ 30.287583] panic+0x1f9/0x42d [ 30.290756] ? add_taint.cold+0x16/0x16 [ 30.294713] ? udf_free_inode+0x27a/0x2f0 [ 30.298852] ? udf_free_inode+0x27a/0x2f0 [ 30.302993] __warn.cold+0x20/0x44 [ 30.306531] ? ist_end_non_atomic+0x10/0x10 [ 30.310839] ? udf_free_inode+0x27a/0x2f0 [ 30.314987] report_bug+0x208/0x250 [ 30.318599] do_error_trap+0x195/0x2d0 [ 30.322465] ? math_error+0x2d0/0x2d0 [ 30.326246] ? udf_free_inode+0x88/0x2f0 [ 30.330283] ? __mutex_lock+0x360/0x1310 [ 30.334337] ? lock_downgrade+0x740/0x740 [ 30.338494] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.343340] invalid_op+0x1b/0x40 [ 30.346781] RIP: 0010:udf_free_inode+0x27a/0x2f0 [ 30.351782] RSP: 0018:ffff88808b61fae0 EFLAGS: 00010297 [ 30.357132] RAX: ffff8880b3706280 RBX: ffff88808d6f46b8 RCX: 0000000000000000 [ 30.364381] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a0bed01c [ 30.371634] RBP: ffff8880a0bed000 R08: 0000000000000000 R09: 000000000004057c [ 30.378890] R10: ffff8880b3706b30 R11: ffff8880b3706280 R12: ffff8880b3552080 [ 30.386145] R13: ffff8880968043f8 R14: ffff888096804340 R15: 0000000000000000 [ 30.393418] udf_evict_inode+0x2f0/0x520 [ 30.397461] ? udf_setsize+0xe90/0xe90 [ 30.401327] evict+0x2c8/0x700 [ 30.404503] iput+0x458/0x7e0 [ 30.407589] udf_sb_free_partitions.isra.0+0x6a6/0xaf0 [ 30.412843] ? init_once+0x40/0x40 [ 30.416366] udf_put_super+0x14d/0x2a0 [ 30.420231] ? udf_sb_free_partitions.isra.0+0xaf0/0xaf0 [ 30.425662] generic_shutdown_super+0x144/0x370 [ 30.430310] kill_block_super+0x95/0xe0 [ 30.434263] deactivate_locked_super+0x6c/0xd0 [ 30.438842] deactivate_super+0x7f/0xa0 [ 30.442795] cleanup_mnt+0x186/0x2c0 [ 30.446488] task_work_run+0x11f/0x190 [ 30.450363] do_exit+0xa44/0x2850 [ 30.453795] ? __do_page_fault+0x571/0xad0 [ 30.458006] ? mm_update_next_owner+0x5b0/0x5b0 [ 30.462653] ? lock_downgrade+0x740/0x740 [ 30.466780] do_group_exit+0x100/0x2e0 [ 30.470651] SyS_exit_group+0x19/0x20 [ 30.474432] ? do_group_exit+0x2e0/0x2e0 [ 30.478470] do_syscall_64+0x1d5/0x640 [ 30.482338] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.487506] RIP: 0033:0x7f4006810c59 [ 30.491193] RSP: 002b:00007ffdb1b08588 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.498887] RAX: ffffffffffffffda RBX: 00007f40068873f0 RCX: 00007f4006810c59 [ 30.506150] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 30.513397] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f4006881e40 [ 30.520644] R10: 00007f4006881e40 R11: 0000000000000246 R12: 00007f40068873f0 [ 30.527891] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 30.535479] Kernel Offset: disabled [ 30.539130] Rebooting in 86400 seconds..