[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.182' (ECDSA) to the list of known hosts. syzkaller login: [ 37.049491] IPVS: ftp: loaded support on port[0] = 21 executing program [ 37.142128] ====================================================== [ 37.142128] WARNING: the mand mount option is being deprecated and [ 37.142128] will be removed in v5.15! [ 37.142128] ====================================================== [ 37.173771] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program [ 37.191134] syz-executor180[7996]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program [ 37.236477] syz-executor180[8001]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program [ 37.312395] syz-executor180 (7996) used greatest stack depth: 24912 bytes left [ 37.318699] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 37.335155] syz-executor180[8007]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program executing program [ 37.425597] syz-executor180[8012]: segfault at 0 ip (null) sp 0000000020000208 error 14 [ 37.449736] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 37.463452] syz-executor180[8017]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program [ 37.529112] syz-executor180[8021]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program [ 37.577936] syz-executor180[8026]: segfault at 0 ip (null) sp 0000000020000208 error 14 [ 37.602956] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program [ 37.626504] syz-executor180[8031]: segfault at 0 ip (null) sp 0000000020000208 error 14 [ 37.654204] syz-executor180[8034]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program [ 37.691353] syz-executor180[8037]: segfault at 0 ip (null) sp 0000000020000208 error 14 executing program [ 37.764993] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program executing program [ 37.917763] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program [ 38.072790] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program [ 38.252469] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program [ 38.437840] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program executing program executing program [ 38.594208] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program [ 38.773682] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program executing program [ 38.956194] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program executing program executing program [ 39.123181] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program executing program [ 39.232817] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program [ 39.465033] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 39.492654] ------------[ cut here ]------------ [ 39.497579] WARNING: CPU: 1 PID: 8154 at fs/udf/inode.c:638 udf_setsize+0x6ba/0xef0 [ 39.505376] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 39.505376] [ 39.513443] CPU: 1 PID: 8154 Comm: syz-executor180 Not tainted 4.14.305-syzkaller #0 [ 39.521333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 39.530780] Call Trace: [ 39.533373] dump_stack+0x1b2/0x281 [ 39.537007] panic+0x21d/0x451 [ 39.540205] ? add_taint.cold+0x16/0x16 [ 39.544188] ? log_store.cold+0x16/0x16 [ 39.548179] ? udf_setsize+0x6ba/0xef0 [ 39.552075] check_panic_on_warn.cold+0x19/0x35 [ 39.556761] __warn+0xdf/0x1e0 [ 39.559945] ? ist_end_non_atomic+0x10/0x10 [ 39.564278] ? udf_setsize+0x6ba/0xef0 [ 39.568158] report_bug+0x208/0x250 [ 39.571774] do_error_trap+0x195/0x2d0 [ 39.575648] ? math_error+0x2d0/0x2d0 [ 39.579434] ? _raw_spin_unlock+0x29/0x40 [ 39.583567] ? udf_free_blocks+0x17c/0x3f0 [ 39.587791] ? udf_get_filelongad+0xe6/0x120 [ 39.592191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.597032] invalid_op+0x1b/0x40 [ 39.600474] RIP: 0010:udf_setsize+0x6ba/0xef0 [ 39.604962] RSP: 0018:ffff88808fd37be8 EFLAGS: 00010297 [ 39.610310] RAX: ffff8880aa0fa000 RBX: 0000000000000400 RCX: 0000000000000009 [ 39.617567] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000000001 [ 39.624821] RBP: ffff88808fd37d58 R08: 0000000000000001 R09: 0000000000000003 [ 39.632078] R10: 0000000000000000 R11: ffff8880aa0fa000 R12: ffff88808a7a06f8 [ 39.639334] R13: ffff88808a7a07bc R14: 0000000000000000 R15: 0000000000000200 [ 39.646604] ? udf_setsize+0x6ba/0xef0 [ 39.650487] ? inode_bmap+0x730/0x730 [ 39.654276] ? current_time+0x16/0xb0 [ 39.658067] ? mark_held_locks+0xa6/0xf0 [ 39.662150] ? current_kernel_time64+0x17c/0x230 [ 39.666891] ? inode_newsize_ok+0x145/0x1c0 [ 39.671200] ? setattr_prepare+0xbe/0x530 [ 39.675334] ? udf_file_write_iter+0x470/0x470 [ 39.679973] udf_setattr+0xd2/0x130 [ 39.683605] notify_change+0x56b/0xd10 [ 39.687500] do_truncate+0xff/0x1a0 [ 39.691122] ? finish_open+0x170/0x170 [ 39.695001] ? apparmor_path_truncate+0x163/0x1d0 [ 39.699838] do_sys_ftruncate.constprop.0+0x3a3/0x480 [ 39.705019] ? compat_SyS_truncate+0x40/0x40 [ 39.709434] do_syscall_64+0x1d5/0x640 [ 39.713320] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 39.718499] RIP: 0033:0x7fc7a7994cc9 [ 39.722196] RSP: 002b:00007ffd09c051c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d [ 39.729889] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc7a7994cc9 [ 39.737174] RDX: ffffffffffffffc0 RSI: 0000000000000200 RDI: 0000000000000004 [ 39.744435] RBP: 0000000000000000 R08: 00007ffd09c051f0 R09: 00007ffd09c051f0 [ 39.751699] R10: 00007ffd09c051f0 R11: 0000000000000246 R12: 00007ffd09c051ec [ 39.758959] R13: 00007ffd09c05220 R14: 00007ffd09c05200 R15: 0000000000000022 [ 39.766698] Kernel Offset: disabled [ 39.770388] Rebooting in 86400 seconds..