NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3540 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x248/0x2a0
Modules linked in:
CPU: 1 PID: 3540 Comm: syz-executor264 Not tainted 6.1.31-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:nilfs_dat_prepare_end+0x248/0x2a0 fs/nilfs2/dat.c:158
Code: b2 3f fe 89 eb 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 67 b2 3f fe e8 42 6a b6 fd e9 5a ff ff ff e8 58 b2 3f 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:ffffc9000397f1f8 EFLAGS: 00010293
RAX: ffffffff834a2318 RBX: 00000000fffffffe RCX: ffff888013f13b80
RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe
RBP: 1ffff9200072fe54 R08: ffffffff834a2291 R09: ffffffff83486087
R10: 0000000000000002 R11: ffff888013f13b80 R12: ffffc9000397f2a0
R13: ffff888074100158 R14: ffffc9000397f2b8 R15: dffffc0000000000
FS:  0000555556e5a300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d5e47bf008 CR3: 0000000023787000 CR4: 00000000003506e0
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_truncate+0x28b/0x500 fs/nilfs2/inode.c:876
 nilfs_setattr+0x216/0x2c0 fs/nilfs2/inode.c:990
 notify_change+0xdcd/0x1080 fs/attr.c:482
 do_truncate+0x21c/0x300 fs/open.c:65
 handle_truncate fs/namei.c:3216 [inline]
 do_open fs/namei.c:3561 [inline]
 path_openat+0x27e2/0x2e60 fs/namei.c:3714
 do_filp_open+0x230/0x480 fs/namei.c:3741
 do_sys_openat2+0x13b/0x500 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_creat fs/open.c:1410 [inline]
 __se_sys_creat fs/open.c:1404 [inline]
 __x64_sys_creat+0x11f/0x160 fs/open.c:1404
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f13e1acab39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc8bef2498 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f13e1acab39
RDX: 00007f13e1a88f23 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007f13e1a8a140 R08: 0000000000000f4a R09: 0000000000000000
R10: 00007ffc8bef2360 R11: 0000000000000246 R12: 00007f13e1a8a1d0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>