------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 0 PID: 2299 at lib/refcount.c:28 refcount_warn_saturate+0x11a/0x1d0
Modules linked in:
CPU: 0 UID: 0 PID: 2299 Comm: kworker/0:3 Not tainted 6.16.0-syzkaller-08685-g260f6f4fda93-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: md_misc mddev_delayed_delete
RIP: 0010:refcount_warn_saturate+0x11a/0x1d0
Code: e0 77 e2 8b e8 b7 64 be fc 90 0f 0b 90 90 eb d7 e8 5b bd fa fc c6 05 21 a4 c5 0a 01 90 48 c7 c7 40 78 e2 8b e8 97 64 be fc 90 <0f> 0b 90 90 eb b7 e8 3b bd fa fc c6 05 fe a3 c5 0a 01 90 48 c7 c7
RSP: 0018:ffffc9000b1e7a68 EFLAGS: 00010246
RAX: 07d8b109b31cc500 RBX: 0000000000000003 RCX: ffff88801e865640
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc9000b1e7c70 R08: ffff88804b024253 R09: 1ffff1100960484a
R10: dffffc0000000000 R11: ffffed100960484b R12: ffff88804b0396c0
R13: ffff88801e724218 R14: ffff8881262f6130 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8679000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000180 CR3: 000000012c1c6000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
