Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.305416] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 34.327953] kasan: CONFIG_KASAN_INLINE enabled [ 34.341916] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.349849] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.356093] CPU: 1 PID: 8131 Comm: syz-executor231 Not tainted 4.19.211-syzkaller #0 [ 34.363966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.373310] RIP: 0010:crc_itu_t+0x55/0xe0 [ 34.377435] Code: 24 ff 49 bc 00 00 00 00 00 fc ff df eb 03 4d 89 ee e8 5f 31 eb fd 48 89 ef 48 83 c5 01 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 <42> 0f b6 04 20 38 d0 7f 04 84 c0 75 67 44 0f b7 eb 0f b6 df 32 5d [ 34.396319] RSP: 0018:ffff8880998b7940 EFLAGS: 00010206 [ 34.401663] RAX: 0000000000000004 RBX: 000000000000a489 RCX: ffffffff837753ef [ 34.409004] RDX: 0000000000000006 RSI: ffffffff83775411 RDI: 0000000000000026 [ 34.416306] RBP: 0000000000000027 R08: 0000000000000001 R09: 0000000000000000 [ 34.423693] R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000 [ 34.430952] R13: 0000000000000000 R14: 0000000000000095 R15: ffff88808b05b3f0 [ 34.438205] FS: 0000555556996300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 34.446410] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.452269] CR2: 0000564a961e37b0 CR3: 00000000abb93000 CR4: 00000000003406e0 [ 34.459867] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.467120] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.474368] Call Trace: [ 34.476943] udf_write_fi+0x72f/0xf40 [ 34.480727] udf_rename+0xdb4/0x1270 [ 34.484422] ? udf_unlink+0x420/0x420 [ 34.488214] ? d_splice_alias+0x4d4/0xc30 [ 34.492343] ? take_dentry_name_snapshot+0x9e/0x140 [ 34.497364] ? do_raw_spin_unlock+0x171/0x230 [ 34.501863] vfs_rename+0x67e/0x1bc0 [ 34.505585] ? path_openat+0x2df0/0x2df0 [ 34.509633] ? do_raw_spin_unlock+0x171/0x230 [ 34.514204] ? _raw_spin_unlock+0x29/0x40 [ 34.518334] ? security_path_rename+0x1ed/0x2e0 [ 34.522991] do_renameat2+0xb59/0xc70 [ 34.526773] ? do_mknodat.part.0+0x480/0x480 [ 34.531336] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.536525] ? do_sys_open+0x2bf/0x520 [ 34.540405] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.545774] __x64_sys_renameat2+0xba/0x150 [ 34.550082] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.554733] do_syscall_64+0xf9/0x620 [ 34.558517] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.563692] RIP: 0033:0x7f497c5288c9 [ 34.567384] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 34.586264] RSP: 002b:00007ffe1a681948 EFLAGS: 00000246 ORIG_RAX: 000000000000013c [ 34.593949] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f497c5288c9 [ 34.601195] RDX: 0000000000000005 RSI: 00000000200001c0 RDI: 0000000000000005 [ 34.608444] RBP: 00007f497c4e8160 R08: 0000000000000000 R09: 0000000000000000 [ 34.615692] R10: 0000000020000200 R11: 0000000000000246 R12: 00007f497c4e81f0 [ 34.622941] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.630212] Modules linked in: [ 34.636141] ---[ end trace 9899b65f67d943b4 ]--- [ 34.640929] RIP: 0010:crc_itu_t+0x55/0xe0 [ 34.645429] Code: 24 ff 49 bc 00 00 00 00 00 fc ff df eb 03 4d 89 ee e8 5f 31 eb fd 48 89 ef 48 83 c5 01 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 <42> 0f b6 04 20 38 d0 7f 04 84 c0 75 67 44 0f b7 eb 0f b6 df 32 5d [ 34.665103] RSP: 0018:ffff8880998b7940 EFLAGS: 00010206 [ 34.670463] RAX: 0000000000000004 RBX: 000000000000a489 RCX: ffffffff837753ef [ 34.677810] RDX: 0000000000000006 RSI: ffffffff83775411 RDI: 0000000000000026 [ 34.685169] RBP: 0000000000000027 R08: 0000000000000001 R09: 0000000000000000 [ 34.692509] R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000 [ 34.699795] R13: 0000000000000000 R14: 0000000000000095 R15: ffff88808b05b3f0 [ 34.707320] FS: 0000555556996300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 34.715614] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.721490] CR2: 0000564a961e37b0 CR3: 00000000abb93000 CR4: 00000000003406e0 [ 34.728889] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.736326] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.743734] Kernel panic - not syncing: Fatal exception [ 34.749185] Kernel Offset: disabled [ 34.752817] Rebooting in 86400 seconds..