------------[ cut here ]------------
WARNING: CPU: 1 PID: 4784 at fs/nilfs2/dat.c:200 nilfs_dat_commit_end+0x5ac/0x6b0 fs/nilfs2/dat.c:200
Modules linked in:
CPU: 1 PID: 4784 Comm: syz.3.107 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
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 93 d7 6e fe e8 ee 86 f7 fd e9 b8 fc ff ff e8 84 d7 6e fe <0f> 0b e9 16 fc ff ff e8 78 d7 6e fe e8 d3 86 f7 fd e9 74 fe ff ff
RSP: 0018:ffffc9000367f2e0 EFLAGS: 00010287
RAX: ffffffff8308f39c RBX: ffff88807c7731a0 RCX: 0000000000080000
RDX: ffffc9000e379000 RSI: 000000000001a15f RDI: 000000000001a160
RBP: 0000000000000003 R08: dffffc0000000000 R09: ffffed100c16b91b
R10: ffffed100c16b91b R11: 1ffff1100c16b91a R12: ffff888029f7d308
R13: ffff88807cfc8980 R14: 0000000009000002 R15: ffff888023b3f130
FS:  00007f2c1a4cb6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f97091e22f8 CR3: 000000007d435000 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_btree_commit_delete fs/nilfs2/btree.c:1577 [inline]
 nilfs_btree_delete+0xa20/0x1040 fs/nilfs2/btree.c:1608
 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
 handle_truncate fs/namei.c:3265 [inline]
 do_open fs/namei.c:3612 [inline]
 path_openat+0x28af/0x2f30 fs/namei.c:3742
 do_filp_open+0x1b3/0x3e0 fs/namei.c:3769
 do_sys_openat2+0x142/0x4a0 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_creat fs/open.c:1345 [inline]
 __se_sys_creat fs/open.c:1339 [inline]
 __x64_sys_creat+0x8c/0xb0 fs/open.c:1339
 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: 0033:0x7f2c1c263ba9
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:00007f2c1a4cb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f2c1c4aafa0 RCX: 00007f2c1c263ba9
RDX: 0000000000000000 RSI: 071283578ac7c5cd RDI: 0000200000000180
RBP: 00007f2c1c2e6e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2c1c4ab038 R14: 00007f2c1c4aafa0 R15: 00007ffe0e22e2e8
 </TASK>