------------[ cut here ]------------
WARNING: CPU: 0 PID: 11962 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x248/0x2a0
Modules linked in:
CPU: 0 PID: 11962 Comm: syz-executor.4 Not tainted 6.1.78-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:nilfs_dat_prepare_end+0x248/0x2a0 fs/nilfs2/dat.c:158
Code: a3 3d fe 89 eb 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 a3 3d fe e8 62 b3 b3 fd e9 5a ff ff ff e8 68 a3 3d fe <0f> 0b bb fe ff ff ff eb d2 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc9000341f8d8 EFLAGS: 00010287
RAX: ffffffff834cda38 RBX: 00000000fffffffe RCX: 0000000000040000
RDX: ffffc90004124000 RSI: 000000000001fb38 RDI: 000000000001fb39
RBP: 1ffff92000683f30 R08: ffffffff834cd9b1 R09: ffffffff834b17a7
R10: 0000000000000002 R11: ffff8880241e0000 R12: ffffc9000341f980
R13: ffff888093460158 R14: ffffc9000341f998 R15: dffffc0000000000
FS:  00007f5bf21d06c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33423000 CR3: 000000007e0fa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_bmap_prepare_end_ptr fs/nilfs2/bmap.h:211 [inline]
 nilfs_direct_delete+0x17b/0x300 fs/nilfs2/direct.c:155
 nilfs_bmap_do_delete fs/nilfs2/bmap.c:184 [inline]
 nilfs_bmap_do_truncate fs/nilfs2/bmap.c:272 [inline]
 nilfs_bmap_truncate+0x2fc/0x560 fs/nilfs2/bmap.c:305
 nilfs_truncate_bmap+0x203/0x3c0 fs/nilfs2/inode.c:846
 nilfs_evict_inode+0x218/0x500 fs/nilfs2/inode.c:951
 evict+0x2a4/0x620 fs/inode.c:666
 do_unlinkat+0x509/0x820 fs/namei.c:4399
 __do_sys_unlink fs/namei.c:4440 [inline]
 __se_sys_unlink fs/namei.c:4438 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4438
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5bf147dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5bf21d00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f5bf15abf80 RCX: 00007f5bf147dda9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f5bf14ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5bf15abf80 R15: 00007ffee0bf7ce8
 </TASK>