[ 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 '10.128.1.88' (ECDSA) to the list of known hosts. syzkaller login: [ 34.840131] IPVS: ftp: loaded support on port[0] = 21 executing program [ 34.923479] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 34.947342] WARNING: CPU: 1 PID: 8087 at fs/udf/udfdecl.h:122 udf_free_inode+0x29b/0x320 [ 34.955657] Kernel panic - not syncing: panic_on_warn set ... [ 34.955657] [ 34.963001] CPU: 1 PID: 8087 Comm: syz-executor555 Not tainted 4.19.211-syzkaller #0 [ 34.970857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.980188] Call Trace: [ 34.982758] dump_stack+0x1fc/0x2ef [ 34.986367] panic+0x26a/0x50e [ 34.989539] ? __warn_printk+0xf3/0xf3 [ 34.993409] ? udf_free_inode+0x29b/0x320 [ 34.997537] ? __probe_kernel_read+0x130/0x1b0 [ 35.002095] ? __warn.cold+0x5/0x5a [ 35.005700] ? __warn+0xe4/0x200 [ 35.009047] ? udf_free_inode+0x29b/0x320 [ 35.013171] __warn.cold+0x20/0x5a [ 35.016689] ? udf_free_inode+0x29b/0x320 [ 35.020817] report_bug+0x262/0x2b0 [ 35.024425] do_error_trap+0x1d7/0x310 [ 35.028290] ? math_error+0x310/0x310 [ 35.032075] ? error_entry+0x72/0xd0 [ 35.035769] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.040766] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.045593] invalid_op+0x14/0x20 [ 35.049028] RIP: 0010:udf_free_inode+0x29b/0x320 [ 35.053762] 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 [ 35.072641] RSP: 0018:ffff8880b2f8fa58 EFLAGS: 00010293 [ 35.077980] RAX: ffff8880986ce3c0 RBX: ffff88808dbcfbc0 RCX: ffffffff826e5f87 [ 35.085239] RDX: 0000000000000000 RSI: ffffffff826e603b RDI: 0000000000000005 [ 35.092495] RBP: ffff8880af193040 R08: 0000000000000000 R09: 0000000000000000 [ 35.099747] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b31ae2c0 [ 35.106997] R13: ffff8880af1930f8 R14: 0000000000000001 R15: ffff8880b31ae940 [ 35.114261] ? udf_free_inode+0x1e7/0x320 [ 35.118389] ? udf_free_inode+0x29b/0x320 [ 35.122522] ? udf_free_inode+0x29b/0x320 [ 35.126651] udf_evict_inode+0x350/0x590 [ 35.130700] ? udf_setsize+0x1030/0x1030 [ 35.134744] evict+0x2ed/0x760 [ 35.137915] iput+0x4f1/0x860 [ 35.141004] udf_sb_free_partitions.isra.0+0x751/0xba0 [ 35.146265] udf_put_super+0x172/0x290 [ 35.150252] ? udf_sb_free_partitions.isra.0+0xba0/0xba0 [ 35.155704] generic_shutdown_super+0x144/0x370 [ 35.160364] kill_block_super+0x97/0xf0 [ 35.164329] deactivate_locked_super+0x94/0x160 [ 35.168987] deactivate_super+0x174/0x1a0 [ 35.173124] ? deactivate_locked_super+0x160/0x160 [ 35.178039] ? dput+0x31/0x640 [ 35.181215] cleanup_mnt+0x1a8/0x290 [ 35.184913] task_work_run+0x148/0x1c0 [ 35.188783] do_exit+0xbf3/0x2be0 [ 35.192216] ? lock_downgrade+0x720/0x720 [ 35.196343] ? mm_update_next_owner+0x650/0x650 [ 35.200993] ? up_read+0x17/0x110 [ 35.204428] ? __do_page_fault+0x180/0xd60 [ 35.208646] do_group_exit+0x125/0x310 [ 35.212515] __x64_sys_exit_group+0x3a/0x50 [ 35.216818] do_syscall_64+0xf9/0x620 [ 35.220601] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.225770] RIP: 0033:0x7f9914494c59 [ 35.229466] Code: Bad RIP value. [ 35.232806] RSP: 002b:00007fff9fbd6a98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 35.240526] RAX: ffffffffffffffda RBX: 00007f991450b3f0 RCX: 00007f9914494c59 [ 35.247793] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 35.255052] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f9914505e40 [ 35.262304] R10: 00007f9914505e40 R11: 0000000000000246 R12: 00007f991450b3f0 [ 35.269554] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 35.277123] Kernel Offset: disabled [ 35.280800] Rebooting in 86400 seconds..