======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.0.132/6584 is trying to acquire lock:
ffff8881ae128610 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_setattr+0x959/0x1b20

but task is already holding lock:
ffff8881a8e94060 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x94a/0x1b20

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&oi->ip_alloc_sem){+.+.}-{4:4}:
       down_write+0x96/0x1f0
       ocfs2_try_remove_refcount_tree+0xb6/0x320
       ocfs2_xattr_set+0x595/0x11f0
       ocfs2_set_acl+0x701/0x7b0
       ocfs2_iop_set_acl+0x1aa/0x2a0
       vfs_remove_acl+0x482/0x6f0
       ovl_workdir_create+0x57d/0x900
       ovl_fill_super+0x188f/0x5a90
       get_tree_nodev+0xbb/0x150
       vfs_get_tree+0x92/0x2a0
       do_new_mount+0x302/0xa10
       __se_sys_mount+0x313/0x410
       do_syscall_64+0xfa/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #2 (&oi->ip_xattr_sem){++++}-{4:4}:
       down_read+0x47/0x2e0
       ocfs2_init_acl+0x2f7/0x7a0
       ocfs2_mknod+0x12ff/0x2030
       ocfs2_create+0x195/0x420
       path_openat+0x18bb/0x3dd0
       do_filp_open+0x1fa/0x410
       do_sys_openat2+0x121/0x200
       __x64_sys_open+0x11e/0x150
       do_syscall_64+0xfa/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&journal->j_trans_barrier){.+.+}-{4:4}:
       down_read+0x47/0x2e0
       ocfs2_start_trans+0x36a/0x6d0
       ocfs2_modify_bh+0xe8/0x470
       ocfs2_local_read_info+0x1465/0x17e0
       dquot_load_quota_sb+0x791/0xbd0
       dquot_load_quota_inode+0x2e1/0x5d0
       ocfs2_enable_quotas+0x1c6/0x450
       ocfs2_fill_super+0x50dd/0x63a0
       get_tree_bdev_flags+0x40e/0x4d0
       vfs_get_tree+0x92/0x2a0
       do_new_mount+0x302/0xa10
       __se_sys_mount+0x313/0x410
       do_syscall_64+0xfa/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (sb_internal#3){.+.+}-{0:0}:
       __lock_acquire+0x15a6/0x2cf0
       lock_acquire+0x117/0x340
       ocfs2_start_trans+0x26b/0x6d0
       ocfs2_setattr+0x959/0x1b20
       notify_change+0xc1a/0xf40
       ovl_workdir_create+0x717/0x900
       ovl_fill_super+0x188f/0x5a90
       get_tree_nodev+0xbb/0x150
       vfs_get_tree+0x92/0x2a0
       do_new_mount+0x302/0xa10
       __se_sys_mount+0x313/0x410
       do_syscall_64+0xfa/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  sb_internal#3 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&oi->ip_alloc_sem);
                               lock(&oi->ip_xattr_sem);
                               lock(&oi->ip_alloc_sem);
  rlock(sb_internal#3);

 *** DEADLOCK ***

4 locks held by syz.0.132/6584:
 #0: ffff88816e2640e0 (&type->s_umount_key#76/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xaa0
 #1: ffff8881ae128420 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #2: ffff8881a8e943c0 (&sb->s_type->i_mutex_key#27){+.+.}-{4:4}, at: ovl_workdir_create+0x6a1/0x900
 #3: ffff8881a8e94060 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x94a/0x1b20

stack backtrace:
CPU: 1 UID: 0 PID: 6584 Comm: syz.0.132 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 print_circular_bug+0x2e2/0x300
 check_noncircular+0x12e/0x150
 __lock_acquire+0x15a6/0x2cf0
 lock_acquire+0x117/0x340
 ocfs2_start_trans+0x26b/0x6d0
 ocfs2_setattr+0x959/0x1b20
 notify_change+0xc1a/0xf40
 ovl_workdir_create+0x717/0x900
 ovl_fill_super+0x188f/0x5a90
 get_tree_nodev+0xbb/0x150
 vfs_get_tree+0x92/0x2a0
 do_new_mount+0x302/0xa10
 __se_sys_mount+0x313/0x410
 do_syscall_64+0xfa/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f74f358f7c9
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:00007f74f17d5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f74f37e6180 RCX: 00007f74f358f7c9
RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f74f35f297f R08: 0000200000000a00 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f74f37e6218 R14: 00007f74f37e6180 R15: 00007fff83ca7228
 </TASK>
overlayfs: upper fs does not support tmpfile.
overlayfs: upper fs does not support RENAME_WHITEOUT.
overlayfs: upper fs missing required features.
