loop3: detected capacity change from 0 to 32768
(syz.3.1155,10665,1):ocfs2_read_blocks:240 ERROR: status = -12
=====================================
WARNING: bad unlock balance detected!
5.15.167-syzkaller #0 Not tainted
-------------------------------------
syz.3.1155/10665 is trying to release lock (&oi->ip_io_mutex
) at:
[<ffffffff8333943d>] ocfs2_read_blocks+0x108d/0x1490 fs/ocfs2/buffer_head_io.c:394
but there are no more locks to release!
other info that might help us debug this:
1 lock held by syz.3.1155/10665:
#0: ffff888076c0e0e0 (&type->s_umount_key#50/1){+.+.}-{3:3}, at: alloc_super+0x210/0x940 fs/super.c:229
stack backtrace:
CPU: 0 PID: 10665 Comm: syz.3.1155 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
print_unlock_imbalance_bug+0x248/0x2b0 kernel/locking/lockdep.c:5065
__lock_release kernel/locking/lockdep.c:5302 [inline]
lock_release+0x596/0x9a0 kernel/locking/lockdep.c:5643
__mutex_unlock_slowpath+0xde/0x750 kernel/locking/mutex.c:851
ocfs2_read_blocks+0x108d/0x1490 fs/ocfs2/buffer_head_io.c:394
ocfs2_map_slot_buffers fs/ocfs2/slot_map.c:385 [inline]
ocfs2_init_slot_info+0xae4/0x1350 fs/ocfs2/slot_map.c:424
ocfs2_initialize_super fs/ocfs2/super.c:2300 [inline]
ocfs2_fill_super+0x48ea/0x58a0 fs/ocfs2/super.c:995
mount_bdev+0x2c9/0x3f0 fs/super.c:1398
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1528
do_new_mount+0x2ba/0xb40 fs/namespace.c:3005
do_mount fs/namespace.c:3348 [inline]
__do_sys_mount fs/namespace.c:3556 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3533
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3331ece79a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f3330344e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3330344ef0 RCX: 00007f3331ece79a
RDX: 0000000020004440 RSI: 0000000020000000 RDI: 00007f3330344eb0
RBP: 0000000020004440 R08: 00007f3330344ef0 R09: 00000000000008c0
R10: 00000000000008c0 R11: 0000000000000246 R12: 0000000020000000
R13: 00007f3330344eb0 R14: 0000000000004451 R15: 0000000020000280
</TASK>
(syz.3.1155,10665,1):ocfs2_map_slot_buffers:388 ERROR: status = -12
(syz.3.1155,10665,1):ocfs2_init_slot_info:426 ERROR: status = -12
(syz.3.1155,10665,0):ocfs2_initialize_super:2302 ERROR: status = -12
(syz.3.1155,10665,0):ocfs2_fill_super:1177 ERROR: status = -12