------------[ cut here ]------------
WARNING: fs/buffer.c:1125 at __getblk_slow fs/buffer.c:1125 [inline], CPU#0: syz.0.3129/19608
WARNING: fs/buffer.c:1125 at bdev_getblk+0x580/0x660 fs/buffer.c:1461, CPU#0: syz.0.3129/19608
Modules linked in:
CPU: 0 UID: 0 PID: 19608 Comm: syz.0.3129 Not tainted 6.16.0-rc5-next-20250709-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__getblk_slow fs/buffer.c:1125 [inline]
RIP: 0010:bdev_getblk+0x580/0x660 fs/buffer.c:1461
Code: 26 fb ff ff e8 81 ee 78 ff 48 c7 c7 20 08 9a 8b 48 c7 c6 02 1b a0 8d 4c 89 fa 4c 89 e9 e8 38 d7 e0 fe eb bd e8 61 ee 78 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89
RSP: 0018:ffffc9000b707590 EFLAGS: 00010287
RAX: ffffffff8246c6ff RBX: ffff88804376a298 RCX: 0000000000080000
RDX: ffffc9001c804000 RSI: 00000000000003cb RDI: 00000000000003cc
RBP: 0000000000000400 R08: 0000000000000000 R09: ffffffff8216fdad
R10: 0000000000000406 R11: 0000000000000002 R12: ffff88804376a280
R13: ffff88804376a280 R14: 0000000000000400 R15: 1ffff110086ed453
FS:  00007efcfa3b46c0(0000) GS:ffff888125bd4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2db1fffc CR3: 0000000051efc000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 getblk_unmovable include/linux/buffer_head.h:369 [inline]
 ext4_getblk+0x2a4/0x760 fs/ext4/inode.c:975
 ext4_bread_batch+0x67/0x4b0 fs/ext4/inode.c:1044
 __ext4_find_entry+0x1082/0x1f20 fs/ext4/namei.c:1601
 ext4_lookup_entry fs/ext4/namei.c:1703 [inline]
 ext4_lookup+0x13d/0x6c0 fs/ext4/namei.c:1771
 lookup_one_qstr_excl+0x12e/0x360 fs/namei.c:1697
 filename_create+0x224/0x3c0 fs/namei.c:4140
 kern_path_create+0x33/0x50 fs/namei.c:4166
 unix_bind_bsd net/unix/af_unix.c:1390 [inline]
 unix_bind+0x2ad/0xd90 net/unix/af_unix.c:1495
 __sys_bind_socket net/socket.c:1858 [inline]
 __sys_bind+0x2c3/0x3e0 net/socket.c:1889
 __do_sys_bind net/socket.c:1894 [inline]
 __se_sys_bind net/socket.c:1892 [inline]
 __x64_sys_bind+0x7a/0x90 net/socket.c:1892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efcfc58e929
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:00007efcfa3b4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007efcfc7b6160 RCX: 00007efcfc58e929
RDX: 000000000000006e RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007efcfc610b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efcfc7b6160 R15: 00007ffc930f38d8
 </TASK>