getblk(): invalid block size 512 requested
logical block size: 2048
CPU: 0 UID: 0 PID: 5119 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 __getblk_slow fs/buffer.c:1128 [inline]
 bdev_getblk+0x4a6/0x550 fs/buffer.c:1441
 __getblk include/linux/buffer_head.h:381 [inline]
 sb_getblk include/linux/buffer_head.h:387 [inline]
 ocfs2_read_blocks+0x4ea/0x1620 fs/ocfs2/buffer_head_io.c:236
 ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
 ocfs2_read_inode_block+0x106/0x1e0 fs/ocfs2/inode.c:1605
 ocfs2_find_entry_id fs/ocfs2/dir.c:405 [inline]
 ocfs2_find_entry+0xab6/0x2780 fs/ocfs2/dir.c:1078
 ocfs2_find_files_on_disk+0xff/0x360 fs/ocfs2/dir.c:1980
 ocfs2_lookup_ino_from_name+0xb1/0x1e0 fs/ocfs2/dir.c:2002
 ocfs2_lookup+0x292/0xa60 fs/ocfs2/namei.c:122
 lookup_open fs/namei.c:3556 [inline]
 open_last_lookups fs/namei.c:3647 [inline]
 path_openat+0x11cc/0x3470 fs/namei.c:3883
 do_filp_open+0x235/0x490 fs/namei.c:3913
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1442
 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: 0033:0x7f3a3f57def9
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:00007f3a40404038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3a3f735f80 RCX: 00007f3a3f57def9
RDX: 000000000000275a RSI: 00000000200001c0 RDI: ffffffffffffff9c
RBP: 00007f3a3f5f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3a3f735f80 R15: 00007ffd1f87a5a8
 </TASK>
(syz.0.0,5119,0):ocfs2_read_blocks:240 ERROR: status = -12
=====================================
WARNING: bad unlock balance detected!
6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 Not tainted
-------------------------------------
syz.0.0/5119 is trying to release lock (&oi->ip_io_mutex) at:
[<ffffffff8380b5e6>] ocfs2_read_blocks+0x11c6/0x1620 fs/ocfs2/buffer_head_io.c:394
but there are no more locks to release!

other info that might help us debug this:
2 locks held by syz.0.0/5119:
 #0: ffff88804b822420 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
 #1: ffff88801ff289c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline]
 #1: ffff88801ff289c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3644 [inline]
 #1: ffff88801ff289c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: path_openat+0x7fb/0x3470 fs/namei.c:3883

stack backtrace:
CPU: 0 UID: 0 PID: 5119 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 print_unlock_imbalance_bug+0x256/0x2c0 kernel/locking/lockdep.c:5199
 __lock_release kernel/locking/lockdep.c:5436 [inline]
 lock_release+0x5cb/0xa30 kernel/locking/lockdep.c:5780
 __mutex_unlock_slowpath+0xe2/0x750 kernel/locking/mutex.c:912
 ocfs2_read_blocks+0x11c6/0x1620 fs/ocfs2/buffer_head_io.c:394
 ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
 ocfs2_read_inode_block+0x106/0x1e0 fs/ocfs2/inode.c:1605
 ocfs2_find_entry_id fs/ocfs2/dir.c:405 [inline]
 ocfs2_find_entry+0xab6/0x2780 fs/ocfs2/dir.c:1078
 ocfs2_find_files_on_disk+0xff/0x360 fs/ocfs2/dir.c:1980
 ocfs2_lookup_ino_from_name+0xb1/0x1e0 fs/ocfs2/dir.c:2002
 ocfs2_lookup+0x292/0xa60 fs/ocfs2/namei.c:122
 lookup_open fs/namei.c:3556 [inline]
 open_last_lookups fs/namei.c:3647 [inline]
 path_openat+0x11cc/0x3470 fs/namei.c:3883
 do_filp_open+0x235/0x490 fs/namei.c:3913
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1442
 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: 0033:0x7f3a3f57def9
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:00007f3a40404038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3a3f735f80 RCX: 00007f3a3f57def9
RDX: 000000000000275a RSI: 00000000200001c0 RDI: ffffffffffffff9c
RBP: 00007f3a3f5f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3a3f735f80 R15: 00007ffd1f87a5a8
 </TASK>
(syz.0.0,5119,0):ocfs2_find_entry_id:407 ERROR: status = -12
getblk(): invalid block size 512 requested
logical block size: 2048
CPU: 0 UID: 0 PID: 5119 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 __getblk_slow fs/buffer.c:1128 [inline]
 bdev_getblk+0x4a6/0x550 fs/buffer.c:1441
 __getblk include/linux/buffer_head.h:381 [inline]
 sb_getblk include/linux/buffer_head.h:387 [inline]
 ocfs2_read_blocks+0x4ea/0x1620 fs/ocfs2/buffer_head_io.c:236
 ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
 ocfs2_read_inode_block+0x106/0x1e0 fs/ocfs2/inode.c:1605
 ocfs2_assign_bh fs/ocfs2/dlmglue.c:2414 [inline]
 ocfs2_inode_lock_full_nested+0x300/0x1c10 fs/ocfs2/dlmglue.c:2509
 ocfs2_mknod+0x63c/0x2b40 fs/ocfs2/namei.c:267
 ocfs2_create+0x1ab/0x480 fs/ocfs2/namei.c:672
 lookup_open fs/namei.c:3578 [inline]
 open_last_lookups fs/namei.c:3647 [inline]
 path_openat+0x1a9a/0x3470 fs/namei.c:3883
 do_filp_open+0x235/0x490 fs/namei.c:3913
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1442
 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: 0033:0x7f3a3f57def9
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:00007f3a40404038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3a3f735f80 RCX: 00007f3a3f57def9
RDX: 000000000000275a RSI: 00000000200001c0 RDI: ffffffffffffff9c
RBP: 00007f3a3f5f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3a3f735f80 R15: 00007ffd1f87a5a8
 </TASK>
(syz.0.0,5119,0):ocfs2_read_blocks:240 ERROR: status = -12
(syz.0.0,5119,0):ocfs2_assign_bh:2416 ERROR: status = -12
(syz.0.0,5119,0):ocfs2_inode_lock_full_nested:2511 ERROR: status = -12
(syz.0.0,5119,0):ocfs2_mknod:270 ERROR: status = -12
(syz.0.0,5119,0):ocfs2_create:674 ERROR: status = -12