grow_buffers: requested out-of-range block 14757395258967641292 for device loop0 (syz.0.15,5609,0):ocfs2_read_blocks:240 ERROR: status = -12 ===================================== WARNING: bad unlock balance detected! 6.11.0-rc6-syzkaller-gc763c4339688 #0 Not tainted ------------------------------------- syz.0.15/5609 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: 7 locks held by syz.0.15/5609: #0: ffff8880009b4420 (sb_writers#12){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2882 [inline] #0: ffff8880009b4420 (sb_writers#12){.+.+}-{0:0}, at: vfs_copy_file_range+0x9e4/0x1530 fs/read_write.c:1510 #1: ffff888044d842c0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888044d842c0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: lock_two_nondirectories+0xe1/0x170 fs/inode.c:1170 #2: ffff888044d83f60 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_remap_file_range+0x46a/0x8e0 fs/ocfs2/file.c:2714 #3: ffff888044d0ed80 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #3: ffff888044d0ed80 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x192/0x4eb0 fs/ocfs2/suballoc.c:786 #4: ffff8880009b4610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_create_refcount_tree+0x43b/0x15f0 fs/ocfs2/refcounttree.c:576 #5: ffff88804108ace8 (&journal->j_trans_barrier){.+.+}-{3:3}, at: ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 #6: ffff888000f7e958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1e94/0x2110 fs/jbd2/transaction.c:448 stack backtrace: CPU: 0 UID: 0 PID: 5609 Comm: syz.0.15 Not tainted 6.11.0-rc6-syzkaller-gc763c4339688 #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_block fs/ocfs2/buffer_head_io.h:52 [inline] ocfs2_read_group_descriptor fs/ocfs2/suballoc.c:303 [inline] ocfs2_search_chain+0x2d3/0x26d0 fs/ocfs2/suballoc.c:1810 ocfs2_claim_suballoc_bits+0x11ef/0x2570 fs/ocfs2/suballoc.c:1985 ocfs2_claim_metadata+0x16d/0x580 fs/ocfs2/suballoc.c:2057 ocfs2_create_refcount_tree+0x699/0x15f0 fs/ocfs2/refcounttree.c:590 ocfs2_reflink_remap_blocks+0x2f6/0x1f30 fs/ocfs2/refcounttree.c:4634 ocfs2_remap_file_range+0x600/0x8e0 fs/ocfs2/file.c:2724 vfs_copy_file_range+0xc1f/0x1530 fs/read_write.c:1522 __do_sys_copy_file_range fs/read_write.c:1612 [inline] __se_sys_copy_file_range+0x3f2/0x5d0 fs/read_write.c:1575 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: 0033:0x7fdeadd79e79 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:00007fdeaebc3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007fdeadf15f80 RCX: 00007fdeadd79e79 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007fdeadde7916 R08: 0000000000000006 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fdeadf15f80 R15: 00007ffc8450e278 (syz.0.15,5609,0):ocfs2_search_chain:1814 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_search_chain:1926 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_claim_suballoc_bits:1995 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_claim_suballoc_bits:2038 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_claim_metadata:2063 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_claim_metadata:2076 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_create_refcount_tree:594 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_reflink_remap_blocks:4636 ERROR: status = -12 (syz.0.15,5609,0):ocfs2_remap_file_range:2731 ERROR: status = -12