loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. loop0: detected capacity change from 32768 to 0 loop0: detected capacity change from 0 to 64 (syz.0.0,5110,0):ocfs2_read_blocks:240 ERROR: status = -12 ===================================== WARNING: bad unlock balance detected! 6.11.0-rc7-syzkaller-00021-g7c6a3a65ace7 #0 Not tainted ------------------------------------- syz.0.0/5110 is trying to release lock (&oi->ip_io_mutex) at: [] 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: 1 lock held by syz.0.0/5110: #0: ffff888041d609c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:810 [inline] #0: ffff888041d609c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3646 [inline] #0: ffff888041d609c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x7ec/0x3470 fs/namei.c:3883 stack backtrace: CPU: 0 UID: 0 PID: 5110 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00021-g7c6a3a65ace7 #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: __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: 0033:0x7ffa0617def9 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:00007ffa07035038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffa06335f80 RCX: 00007ffa0617def9 RDX: 0000000000000002 RSI: 0000000020000200 RDI: ffffffffffffff9c RBP: 00007ffa061f0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffa06335f80 R15: 00007ffcc520cca8 (syz.0.0,5110,0):ocfs2_find_entry_id:407 ERROR: status = -12