------------[ cut here ]------------
WARNING: CPU: 1 PID: 4689 at fs/nilfs2/dat.c:200 nilfs_dat_commit_end+0x5ac/0x6b0 fs/nilfs2/dat.c:200
Modules linked in:
CPU: 1 PID: 4689 Comm: syz.4.54 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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 e8 53 03 00 e8 d3 6b 6a fe e8 4e c9 f1 fd e9 b8 fc ff ff e8 c4 6b 6a fe <0f> 0b e9 16 fc ff ff e8 b8 6b 6a fe e8 33 c9 f1 fd e9 74 fe ff ff
RSP: 0000:ffffc90003f3f720 EFLAGS: 00010287
RAX: ffffffff830eb3dc RBX: ffff88801e8cb1a0 RCX: 0000000000080000
RDX: ffffc90005f91000 RSI: 0000000000011bef RDI: 0000000000011bf0
RBP: 0000000000000003 R08: ffff88805f6a94d3 R09: 1ffff1100bed529a
R10: dffffc0000000000 R11: ffffed100bed529b R12: ffff88807b8470c8
R13: ffff888067faa980 R14: 0000000009000002 R15: ffffc90003f3f7d8
FS:  00007f373bf986c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbda0a52000 CR3: 0000000064c42000 CR4: 00000000003506e0
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+0x287/0x2e0 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+0x2e6/0x560 fs/nilfs2/bmap.c:305
 nilfs_truncate_bmap+0x1ad/0x320 fs/nilfs2/inode.c:863
 nilfs_truncate+0x271/0x4e0 fs/nilfs2/inode.c:893
 nilfs_setattr+0x20d/0x2c0 fs/nilfs2/inode.c:1007
 notify_change+0xbcd/0xee0 fs/attr.c:505
 do_truncate+0x1ac/0x240 fs/open.c:65
 vfs_truncate+0x262/0x2f0 fs/open.c:111
 do_sys_truncate+0xf2/0x1c0 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: 0033:0x7f373dd3ccb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f373bf98028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f373dfb7fa0 RCX: 00007f373dd3ccb9
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 00002000000000c0
RBP: 00007f373ddaabf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f373dfb8038 R14: 00007f373dfb7fa0 R15: 00007ffc4fe09388
 </TASK>