------------[ cut here ]------------
WARNING: CPU: 0 PID: 4427 at fs/nilfs2/dat.c:200 nilfs_dat_commit_end+0x5ac/0x6b0 fs/nilfs2/dat.c:200
Modules linked in:
CPU: 0 PID: 4427 Comm: syz.2.49 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:nilfs_dat_commit_end+0x5ac/0x6b0 fs/nilfs2/dat.c:200
Code: 8b 34 24 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 a8 4c 03 00 e8 03 d7 6e fe e8 ee 86 f7 fd e9 b8 fc ff ff e8 f4 d6 6e fe <0f> 0b e9 16 fc ff ff e8 e8 d6 6e fe e8 d3 86 f7 fd e9 74 fe ff ff
RSP: 0018:ffffc900047df760 EFLAGS: 00010287
RAX: ffffffff8308f39c RBX: ffff88805f97f1a0 RCX: 0000000000080000
RDX: ffffc900058a1000 RSI: 00000000000043d6 RDI: 00000000000043d7
RBP: 0000000000000003 R08: dffffc0000000000 R09: ffffed100f128f1b
R10: ffffed100f128f1b R11: 1ffff1100f128f1a R12: ffff88801e6cf0c8
R13: ffff8880731029e0 R14: 00000000003f0002 R15: ffffc900047df818
FS:  00007fafc490c6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f600390e000 CR3: 000000005cfc7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_bmap_commit_end_ptr fs/nilfs2/bmap.h:219 [inline]
 nilfs_direct_delete+0x2b0/0x310 fs/nilfs2/direct.c:162
 nilfs_bmap_do_delete fs/nilfs2/bmap.c:184 [inline]
 nilfs_bmap_do_truncate fs/nilfs2/bmap.c:272 [inline]
 nilfs_bmap_truncate+0x2f1/0x550 fs/nilfs2/bmap.c:305
 nilfs_truncate_bmap+0x1a1/0x340 fs/nilfs2/inode.c:863
 nilfs_truncate+0x263/0x4c0 fs/nilfs2/inode.c:893
 nilfs_setattr+0x20d/0x2a0 fs/nilfs2/inode.c:1007
 notify_change+0xbcd/0xee0 fs/attr.c:505
 do_truncate+0x197/0x220 fs/open.c:65
 vfs_truncate+0x262/0x2f0 fs/open.c:111
 do_sys_truncate+0xdc/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fafc66a4fc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fafc490c038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007fafc68fbfa0 RCX: 00007fafc66a4fc9
RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000200000000500
RBP: 00007fafc6727f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fafc68fc038 R14: 00007fafc68fbfa0 R15: 00007ffec1d5af08
 </TASK>