REISERFS error (device loop0): vs-5150 search_by_key: invalid format found in block 0. Fsck?
REISERFS (device loop0): Remounting filesystem read-only
divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4779 Comm: syz-executor Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:do_journal_end+0x12f1/0x4650 fs/reiserfs/journal.c:4089
Code: 04 30 84 c0 0f 85 74 2d 00 00 4f 8d 7c 2f 01 48 89 e8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 7a 2d 00 00 8b 0b 4c 89 f8 31 d2 <48> f7 f1 48 89 d3 4c 01 e3 48 8b 84 24 c8 00 00 00 42 80 3c 30 00
RSP: 0018:ffffc9000116f870 EFLAGS: 00010246
RAX: 0000000000000003 RBX: ffff88806afe7014 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880223f9000
RBP: ffff88806afe7017 R08: dffffc0000000000 R09: ffff8880223f9000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcadd38ab0 CR3: 000000001d761000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_journal_release+0x478/0x4d0 fs/reiserfs/journal.c:1937
 journal_release+0x1b/0x30 fs/reiserfs/journal.c:1968
 reiserfs_put_super+0x237/0x4b0 fs/reiserfs/super.c:616
 generic_shutdown_super+0x130/0x310 fs/super.c:475
 kill_block_super+0x7a/0xe0 fs/super.c:1427
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa6460b4b59
Code: Unable to access opcode bytes at RIP 0x7fa6460b4b2f.
RSP: 002b:00007ffcadd3aba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fa6461224be RCX: 00007fa6460b4b59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000010 R08: 00007ffcadd38946 R09: 00007ffcadd3be60
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcadd3be60
R13: 00007fa64612244c R14: 00005555693c34a8 R15: 000000000001bb42
 </TASK>
Modules linked in:
---[ end trace ac7d61adcd9e140a ]---
RIP: 0010:do_journal_end+0x12f1/0x4650 fs/reiserfs/journal.c:4089
Code: 04 30 84 c0 0f 85 74 2d 00 00 4f 8d 7c 2f 01 48 89 e8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 7a 2d 00 00 8b 0b 4c 89 f8 31 d2 <48> f7 f1 48 89 d3 4c 01 e3 48 8b 84 24 c8 00 00 00 42 80 3c 30 00
RSP: 0018:ffffc9000116f870 EFLAGS: 00010246
RAX: 0000000000000003 RBX: ffff88806afe7014 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880223f9000
RBP: ffff88806afe7017 R08: dffffc0000000000 R09: ffff8880223f9000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020078000 CR3: 0000000029ae4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	04 30                	add    $0x30,%al
   2:	84 c0                	test   %al,%al
   4:	0f 85 74 2d 00 00    	jne    0x2d7e
   a:	4f 8d 7c 2f 01       	lea    0x1(%r15,%r13,1),%r15
   f:	48 89 e8             	mov    %rbp,%rax
  12:	48 c1 e8 03          	shr    $0x3,%rax
  16:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
  1b:	84 c0                	test   %al,%al
  1d:	0f 85 7a 2d 00 00    	jne    0x2d9d
  23:	8b 0b                	mov    (%rbx),%ecx
  25:	4c 89 f8             	mov    %r15,%rax
  28:	31 d2                	xor    %edx,%edx
* 2a:	48 f7 f1             	div    %rcx <-- trapping instruction
  2d:	48 89 d3             	mov    %rdx,%rbx
  30:	4c 01 e3             	add    %r12,%rbx
  33:	48 8b 84 24 c8 00 00 	mov    0xc8(%rsp),%rax
  3a:	00
  3b:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)