[ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.823498] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256 [ 33.836483] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program [ 33.904846] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256 [ 33.915405] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) executing program [ 33.989582] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256 [ 34.007488] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 34.027528] kasan: CONFIG_KASAN_INLINE enabled [ 34.035619] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.043597] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.049822] CPU: 0 PID: 8102 Comm: syz-executor663 Not tainted 4.19.211-syzkaller #0 [ 34.057675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.067014] RIP: 0010:mark_buffer_dirty_inode+0x51/0x3c0 [ 34.072441] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ec 02 00 00 48 8d 7b 10 48 8b 6d 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b5 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b [ 34.091317] RSP: 0018:ffff8880948e79d0 EFLAGS: 00010202 [ 34.096654] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82700bb8 [ 34.103915] RDX: 0000000000000002 RSI: ffffffff81b05229 RDI: 0000000000000010 [ 34.111164] RBP: ffff88808ac1d328 R08: 0000000000000001 R09: 0000000000000003 [ 34.118413] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88808ac1d670 [ 34.125656] R13: 0000000000000001 R14: ffff88808ac1d120 R15: ffff8880b0c11340 [ 34.132901] FS: 00007fac492d0700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 34.141100] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.146955] CR2: 00007fac492d0718 CR3: 00000000abba7000 CR4: 00000000003406f0 [ 34.154201] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.161447] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.168692] Call Trace: [ 34.171261] ? udf_update_tag+0x156/0x1c0 [ 34.175385] udf_rename+0x804/0x1270 [ 34.179080] ? udf_unlink+0x420/0x420 [ 34.182860] ? d_splice_alias+0x4d4/0xc30 [ 34.186985] ? take_dentry_name_snapshot+0x9e/0x140 [ 34.191981] ? do_raw_spin_unlock+0x171/0x230 [ 34.196454] vfs_rename+0x67e/0x1bc0 [ 34.200149] ? path_openat+0x2df0/0x2df0 [ 34.204185] ? do_raw_spin_unlock+0x171/0x230 [ 34.208659] ? _raw_spin_unlock+0x29/0x40 [ 34.212782] ? security_path_rename+0x1ed/0x2e0 [ 34.217442] do_renameat2+0xb59/0xc70 [ 34.221222] ? do_mknodat.part.0+0x480/0x480 [ 34.225622] ? lock_downgrade+0x720/0x720 [ 34.229749] ? lock_acquire+0x170/0x3c0 [ 34.233704] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.239045] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.244050] __x64_sys_rename+0x5d/0x80 [ 34.248002] do_syscall_64+0xf9/0x620 [ 34.251783] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.256951] RIP: 0033:0x7fac517355a9 [ 34.260642] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 34.279520] RSP: 002b:00007fac492d02f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 34.287206] RAX: ffffffffffffffda RBX: 00007fac517ba7b0 RCX: 00007fac517355a9 [ 34.294465] RDX: 00007fac492d0700 RSI: 0000000020000100 RDI: 0000000020000040 [ 34.301711] RBP: 0030656c69662f2e R08: 00007fac492d0700 R09: 0000000000000000 [ 34.308955] R10: 00007fac492d0700 R11: 0000000000000246 R12: 00007fac517870c0 [ 34.316203] R13: 0000000020000580 R14: f6f2cbf92df09e20 R15: 00007fac517ba7b8 [ 34.323452] Modules linked in: [ 34.330399] ---[ end trace 1bd3fd187b995441 ]--- [ 34.335234] RIP: 0010:mark_buffer_dirty_inode+0x51/0x3c0 [ 34.341027] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ec 02 00 00 48 8d 7b 10 48 8b 6d 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b5 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b [ 34.360255] RSP: 0018:ffff8880948e79d0 EFLAGS: 00010202 [ 34.365832] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82700bb8 [ 34.373131] RDX: 0000000000000002 RSI: ffffffff81b05229 RDI: 0000000000000010 [ 34.380657] RBP: ffff88808ac1d328 R08: 0000000000000001 R09: 0000000000000003 [ 34.388150] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88808ac1d670 [ 34.395484] R13: 0000000000000001 R14: ffff88808ac1d120 R15: ffff8880b0c11340 [ 34.402787] FS: 00007fac492d0700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 34.411066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.417027] CR2: 00007fac51776c80 CR3: 00000000abba7000 CR4: 00000000003406f0 [ 34.424335] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.431672] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.439046] Kernel panic - not syncing: Fatal exception [ 34.444549] Kernel Offset: disabled [ 34.448157] Rebooting in 86400 seconds..