------------[ cut here ]------------
WARNING: CPU: 1 PID: 5289 at fs/buffer.c:1177 mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1177
Modules linked in:
CPU: 1 UID: 0 PID: 5289 Comm: syz-executor333 Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1177
Code: 89 df e8 9e 89 db ff 48 8b 3b be 20 00 00 00 5b 41 5e 41 5f 5d e9 fb e8 fb ff e8 76 fc 74 ff e9 73 ff ff ff e8 6c fc 74 ff 90 <0f> 0b 90 e9 61 fd ff ff e8 5e fc 74 ff 90 0f 0b 90 e9 88 fd ff ff
RSP: 0018:ffffc90003f67660 EFLAGS: 00010293
RAX: ffffffff821fea94 RBX: ffff888078ea8e01 RCX: ffff888033a88000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff821fe7f1 R09: 1ffff1100f1dc95c
R10: dffffc0000000000 R11: ffffed100f1dc95d R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888078ee4ae0 R15: ffffc90003f67760
FS:  00007fe38c7c46c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe38425e000 CR3: 000000003364a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_palloc_commit_alloc_entry+0x4b/0x160 fs/nilfs2/alloc.c:598
 nilfs_dat_commit_alloc+0x11a/0x1e0 fs/nilfs2/dat.c:102
 nilfs_bmap_commit_alloc_ptr fs/nilfs2/bmap.h:206 [inline]
 nilfs_direct_insert+0x2d8/0x510 fs/nilfs2/direct.c:133
 nilfs_bmap_do_insert fs/nilfs2/bmap.c:129 [inline]
 nilfs_bmap_insert+0x25e/0x3c0 fs/nilfs2/bmap.c:155
 nilfs_get_block+0x428/0x8e0 fs/nilfs2/inode.c:98
 __block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2121
 nilfs_prepare_chunk fs/nilfs2/dir.c:86 [inline]
 nilfs_make_empty+0xf9/0x530 fs/nilfs2/dir.c:569
 nilfs_mkdir+0x1cc/0x340 fs/nilfs2/namei.c:229
 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4257
 do_mkdirat+0x264/0x3a0 fs/namei.c:4280
 __do_sys_mkdirat fs/namei.c:4295 [inline]
 __se_sys_mkdirat fs/namei.c:4293 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4293
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe38c80ddc9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 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:00007fe38c7c4218 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fe38c8966a8 RCX: 00007fe38c80ddc9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 00000000ffffff9c
RBP: 00007fe38c8966a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe38c862c38
R13: 00007fe38c862160 R14: 0000000020000a40 R15: 0031656c69662f2e
 </TASK>