[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.226' (ECDSA) to the list of known hosts. syzkaller login: [ 32.830636] IPVS: ftp: loaded support on port[0] = 21 executing program [ 32.894166] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 32.929053] WARNING: CPU: 0 PID: 8098 at fs/udf/udfdecl.h:122 udf_free_inode+0x29b/0x320 [ 32.937412] Kernel panic - not syncing: panic_on_warn set ... [ 32.937412] [ 32.944757] CPU: 0 PID: 8098 Comm: syz-executor245 Not tainted 4.19.211-syzkaller #0 [ 32.952614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 32.961947] Call Trace: [ 32.964519] dump_stack+0x1fc/0x2ef [ 32.968133] panic+0x26a/0x50e [ 32.971305] ? __warn_printk+0xf3/0xf3 [ 32.975229] ? udf_free_inode+0x29b/0x320 [ 32.979356] ? __probe_kernel_read+0x130/0x1b0 [ 32.983915] ? __warn.cold+0x5/0x5a [ 32.987518] ? __warn+0xe4/0x200 [ 32.990872] ? udf_free_inode+0x29b/0x320 [ 32.994999] __warn.cold+0x20/0x5a [ 32.998527] ? udf_free_inode+0x29b/0x320 [ 33.002659] report_bug+0x262/0x2b0 [ 33.006268] do_error_trap+0x1d7/0x310 [ 33.010139] ? math_error+0x310/0x310 [ 33.013932] ? error_entry+0x72/0xd0 [ 33.017626] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.022623] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.027480] invalid_op+0x14/0x20 [ 33.030922] RIP: 0010:udf_free_inode+0x29b/0x320 [ 33.035654] 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 [ 33.054530] RSP: 0018:ffff88808f7e7a58 EFLAGS: 00010293 [ 33.059869] RAX: ffff8880b2c92000 RBX: ffff88808ac5fbc0 RCX: ffffffff826e5f87 [ 33.067115] RDX: 0000000000000000 RSI: ffffffff826e603b RDI: 0000000000000005 [ 33.074363] RBP: ffff8880a139b800 R08: 0000000000000000 R09: 0000000000000000 [ 33.081619] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b07ee800 [ 33.088867] R13: ffff8880a139b8b8 R14: 0000000000000001 R15: ffff8880b07eee80 [ 33.096135] ? udf_free_inode+0x1e7/0x320 [ 33.100267] ? udf_free_inode+0x29b/0x320 [ 33.104396] ? udf_free_inode+0x29b/0x320 [ 33.108545] udf_evict_inode+0x350/0x590 [ 33.112582] ? udf_setsize+0x1030/0x1030 [ 33.116627] evict+0x2ed/0x760 [ 33.119798] iput+0x4f1/0x860 [ 33.122887] udf_sb_free_partitions.isra.0+0x751/0xba0 [ 33.128145] udf_put_super+0x172/0x290 [ 33.132009] ? udf_sb_free_partitions.isra.0+0xba0/0xba0 [ 33.137441] generic_shutdown_super+0x144/0x370 [ 33.142098] kill_block_super+0x97/0xf0 [ 33.146055] deactivate_locked_super+0x94/0x160 [ 33.150703] deactivate_super+0x174/0x1a0 [ 33.154830] ? deactivate_locked_super+0x160/0x160 [ 33.159741] ? dput+0x31/0x640 [ 33.162914] cleanup_mnt+0x1a8/0x290 [ 33.166610] task_work_run+0x148/0x1c0 [ 33.170483] do_exit+0xbf3/0x2be0 [ 33.173918] ? lock_downgrade+0x720/0x720 [ 33.178046] ? mm_update_next_owner+0x650/0x650 [ 33.182695] ? up_read+0x17/0x110 [ 33.186134] ? __do_page_fault+0x180/0xd60 [ 33.190350] do_group_exit+0x125/0x310 [ 33.194219] __x64_sys_exit_group+0x3a/0x50 [ 33.198520] do_syscall_64+0xf9/0x620 [ 33.202300] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.207466] RIP: 0033:0x7f6cf83cbc99 [ 33.211162] Code: Bad RIP value. [ 33.214502] RSP: 002b:00007ffff05509b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.222188] RAX: ffffffffffffffda RBX: 00007f6cf84423f0 RCX: 00007f6cf83cbc99 [ 33.229435] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 33.236681] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f6cf843ce40 [ 33.243926] R10: 00005555573982c0 R11: 0000000000000246 R12: 00007f6cf84423f0 [ 33.251176] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 33.258719] Kernel Offset: disabled [ 33.262382] Rebooting in 86400 seconds..