divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5088 Comm: syz-executor.1 Not tainted 6.7.0-rc5-syzkaller-00047-g5bd7ef53ffe5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:do_journal_end+0x18fe/0x4b40 fs/reiserfs/journal.c:4090
Code: 28 84 c0 0f 85 ff 2b 00 00 4a 8d 5c 33 01 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 06 2c 00 00 41 8b 0f 48 89 d8 31 d2 <48> f7 f1 49 89 d4 48 8b 84 24 e8 00 00 00 42 80 3c 28 00 48 8b 9c
RSP: 0018:ffffc900046ff860 EFLAGS: 00010246
RAX: 0000000000000004 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802a852000
RBP: ffffc900046ffad0 R08: ffff88802a852fff R09: 0000000000000000
R10: ffff88802a852000 R11: ffffed100550a600 R12: ffff88803f081017
R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88803f081014
FS:  000055555603a480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556043938 CR3: 000000002bee6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_journal_release+0x47c/0x4d0 fs/reiserfs/journal.c:1939
 journal_release+0x1f/0x30 fs/reiserfs/journal.c:1970
 reiserfs_put_super+0x23b/0x4c0 fs/reiserfs/super.c:616
 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696
 kill_block_super+0x44/0x90 fs/super.c:1667
 deactivate_locked_super+0xc1/0x130 fs/super.c:484
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fcae387ded7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffcf10d6ef8 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcae387ded7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffcf10d6fb0
RBP: 00007ffcf10d6fb0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcf10d8070
R13: 00007fcae38c73b9 R14: 0000000000047769 R15: 000000000000000d
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_journal_end+0x18fe/0x4b40 fs/reiserfs/journal.c:4090
Code: 28 84 c0 0f 85 ff 2b 00 00 4a 8d 5c 33 01 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 06 2c 00 00 41 8b 0f 48 89 d8 31 d2 <48> f7 f1 49 89 d4 48 8b 84 24 e8 00 00 00 42 80 3c 28 00 48 8b 9c
RSP: 0018:ffffc900046ff860 EFLAGS: 00010246
RAX: 0000000000000004 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802a852000
RBP: ffffc900046ffad0 R08: ffff88802a852fff R09: 0000000000000000
R10: ffff88802a852000 R11: ffffed100550a600 R12: ffff88803f081017
R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88803f081014
FS:  000055555603a480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020060000 CR3: 000000002bee6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	28 84 c0 0f 85 ff 2b 	sub    %al,0x2bff850f(%rax,%rax,8)
   7:	00 00                	add    %al,(%rax)
   9:	4a 8d 5c 33 01       	lea    0x1(%rbx,%r14,1),%rbx
   e:	4c 89 e0             	mov    %r12,%rax
  11:	48 c1 e8 03          	shr    $0x3,%rax
  15:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  1a:	84 c0                	test   %al,%al
  1c:	0f 85 06 2c 00 00    	jne    0x2c28
  22:	41 8b 0f             	mov    (%r15),%ecx
  25:	48 89 d8             	mov    %rbx,%rax
  28:	31 d2                	xor    %edx,%edx
* 2a:	48 f7 f1             	div    %rcx <-- trapping instruction
  2d:	49 89 d4             	mov    %rdx,%r12
  30:	48 8b 84 24 e8 00 00 	mov    0xe8(%rsp),%rax
  37:	00
  38:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  3d:	48                   	rex.W
  3e:	8b                   	.byte 0x8b
  3f:	9c                   	pushf