------------[ cut here ]------------
WARNING: CPU: 0 PID: 17964 at block/blk-mq.c:3881 blk_mq_release+0xf8/0x3e0 block/blk-mq.c:3881
Modules linked in:
CPU: 0 PID: 17964 Comm: syz-executor.4 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:blk_mq_release+0xf8/0x3e0 block/blk-mq.c:3881
Code: fd 4c 8d a3 a8 02 00 00 4c 89 e0 48 c1 e8 03 80 3c 28 00 0f 85 14 02 00 00 48 8b 83 a8 02 00 00 49 39 c4 75 b1 e8 28 20 97 fd <0f> 0b eb a8 e8 1f 20 97 fd 48 8b 44 24 10 48 05 18 05 00 00 48 89
RSP: 0018:ffffc9000a8f7c58 EFLAGS: 00010212
RAX: 0000000000002263 RBX: ffff88807b345000 RCX: ffffc9000da36000
RDX: 0000000000040000 RSI: ffffffff83e4e6e8 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88807b3452a8
R13: ffff88801ff66c10 R14: ffff88801ff66c58 R15: 0000000000000000
FS:  00007f119b02f700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f119b02eff8 CR3: 0000000074535000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 blk_release_queue+0x153/0x270 block/blk-sysfs.c:780
 kobject_cleanup lib/kobject.c:673 [inline]
 kobject_release lib/kobject.c:704 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1be/0x4c0 lib/kobject.c:721
 __alloc_disk_node+0x53b/0x650 block/genhd.c:1394
 __blk_mq_alloc_disk+0x13b/0x1f0 block/blk-mq.c:3961
 loop_add+0x3e2/0xaf0 drivers/block/loop.c:1978
 loop_control_ioctl+0x133/0x620 drivers/block/loop.c:2150
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1199e89279
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f119b02f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1199f9c120 RCX: 00007f1199e89279
RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000006
RBP: 00007f119b02f1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fffc3206a4f R14: 00007f119b02f300 R15: 0000000000022000
 </TASK>