divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5086 Comm: syz-executor.0 Not tainted 6.7.0-rc5-syzkaller-00200-g3bd7d7488169 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 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:ffffc90003e8f860 EFLAGS: 00010246 RAX: 0000000000000003 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880275a9000 RBP: ffffc90003e8fad0 R08: ffff8880275a9fff R09: 0000000000000000 R10: ffff8880275a9000 R11: ffffed1004eb5400 R12: ffff888066478017 R13: dffffc0000000000 R14: 0000000000000002 R15: ffff888066478014 FS: 0000555557354480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f73c76db000 CR3: 000000002d78d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7fac0467ded7 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:00007ffdb97c5f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fac0467ded7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffdb97c5fc0 RBP: 00007ffdb97c5fc0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdb97c7080 R13: 00007fac046c73b9 R14: 0000000000048b09 R15: 000000000000000a 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:ffffc90003e8f860 EFLAGS: 00010246 RAX: 0000000000000003 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880275a9000 RBP: ffffc90003e8fad0 R08: ffff8880275a9fff R09: 0000000000000000 R10: ffff8880275a9000 R11: ffffed1004eb5400 R12: ffff888066478017 R13: dffffc0000000000 R14: 0000000000000002 R15: ffff888066478014 FS: 0000555557354480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efd127e2fe4 CR3: 000000002d78d000 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