(syz.2.529,7096,0):ocfs2_read_blocks:240 ERROR: status = -12 ===================================== WARNING: bad unlock balance detected! 6.1.111-syzkaller #0 Not tainted ------------------------------------- syz.2.529/7096 is trying to release lock (&oi->ip_io_mutex) at: [] ocfs2_read_blocks+0x11ef/0x16e0 fs/ocfs2/buffer_head_io.c:394 but there are no more locks to release! other info that might help us debug this: 8 locks held by syz.2.529/7096: #0: ffff88805532e460 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff888071d93488 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff888071d93488 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:308 #2: ffff888071d931b8 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_xattr_set+0x62f/0x1930 fs/ocfs2/xattr.c:3579 #3: ffff888071d1d108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #3: ffff888071d1d108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x182/0x5190 fs/ocfs2/suballoc.c:782 #4: ffff888071d1b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #4: ffff888071d1b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x182/0x5190 fs/ocfs2/suballoc.c:782 #5: ffff88805532e650 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_block_group_alloc fs/ocfs2/suballoc.c:681 [inline] #5: ffff88805532e650 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_reserve_suballoc_bits+0x8f8/0x5190 fs/ocfs2/suballoc.c:828 #6: ffff88802db2e8e8 (&journal->j_trans_barrier){.+.+}-{3:3}, at: ocfs2_start_trans+0x3b5/0x6f0 fs/ocfs2/journal.c:352 #7: ffff888027ee6990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1f51/0x21b0 fs/jbd2/transaction.c:463 stack backtrace: CPU: 0 PID: 7096 Comm: syz.2.529 Not tainted 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_unlock_imbalance_bug+0x24e/0x2c0 kernel/locking/lockdep.c:5102 __lock_release kernel/locking/lockdep.c:5339 [inline] lock_release+0x5ad/0xa20 kernel/locking/lockdep.c:5682 __mutex_unlock_slowpath+0xde/0x750 kernel/locking/mutex.c:907 ocfs2_read_blocks+0x11ef/0x16e0 fs/ocfs2/buffer_head_io.c:394 ocfs2_read_block fs/ocfs2/buffer_head_io.h:52 [inline] ocfs2_read_group_descriptor fs/ocfs2/suballoc.c:299 [inline] ocfs2_search_chain+0x2d1/0x2640 fs/ocfs2/suballoc.c:1757 ocfs2_claim_suballoc_bits+0x1201/0x2560 fs/ocfs2/suballoc.c:1930 __ocfs2_claim_clusters+0x327/0xa30 fs/ocfs2/suballoc.c:2338 ocfs2_claim_clusters fs/ocfs2/suballoc.c:2375 [inline] ocfs2_block_group_alloc_contig fs/ocfs2/suballoc.c:428 [inline] ocfs2_block_group_alloc fs/ocfs2/suballoc.c:695 [inline] ocfs2_reserve_suballoc_bits+0x1241/0x5190 fs/ocfs2/suballoc.c:828 ocfs2_reserve_new_metadata_blocks+0x418/0x9b0 fs/ocfs2/suballoc.c:978 ocfs2_init_xattr_set_ctxt+0x3ab/0x950 fs/ocfs2/xattr.c:3273 ocfs2_xattr_set+0xf46/0x1930 fs/ocfs2/xattr.c:3630 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x250/0x2b0 fs/xattr.c:617 path_setxattr+0x1bc/0x2a0 fs/xattr.c:636 __do_sys_lsetxattr fs/xattr.c:659 [inline] __se_sys_lsetxattr fs/xattr.c:655 [inline] __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fc2c277dff9 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:00007fc2c3524038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 00007fc2c2936058 RCX: 00007fc2c277dff9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080 RBP: 00007fc2c27f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc2c2936058 R15: 00007ffc116a3d48 (syz.2.529,7096,0):ocfs2_search_chain:1761 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_search_chain:1871 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_claim_suballoc_bits:1940 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_claim_suballoc_bits:1983 ERROR: status = -12 (syz.2.529,7096,0):__ocfs2_claim_clusters:2355 ERROR: status = -12 (syz.2.529,7096,0):__ocfs2_claim_clusters:2363 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_block_group_alloc_contig:433 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_block_group_alloc:705 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_block_group_alloc:758 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_reserve_suballoc_bits:833 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_reserve_suballoc_bits:850 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_reserve_new_metadata_blocks:990 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_reserve_new_metadata_blocks:1013 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_init_xattr_set_ctxt:3276 ERROR: status = -12 (syz.2.529,7096,0):ocfs2_xattr_set:3633 ERROR: status = -12