------------[ cut here ]------------
WARNING: CPU: 1 PID: 3960 at block/genhd.c:589 del_gendisk+0x698/0x72c block/genhd.c:589
Modules linked in:
CPU: 1 PID: 3960 Comm: syz-executor385 Not tainted 5.15.120-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : del_gendisk+0x698/0x72c block/genhd.c:589
lr : del_gendisk+0x698/0x72c block/genhd.c:589
sp : ffff80001a2d7bc0
x29: ffff80001a2d7be0 x28: ffff0000da5c3680 x27: 1fffe0001acc162a
x26: 1fffe000191b2110 x25: 1ffff0000345af88 x24: ffff0000c8d90880
x23: 0000000000000000 x22: ffff0000c8d908a0 x21: ffff0000c8d90800
x20: ffff0000cc91c718 x19: 0000000000000240 x18: 0000000000000000
x17: ff8080000c01db2c x16: ffff8000082e8c60 x15: ffff80000c01db2c
x14: 1ffff0000291e06a x13: ffffffffffffffff x12: 0000000000000000
x11: ff8080000a825850 x10: 0000000000000000 x9 : ffff80000a825850
x8 : ffff0000da5c3680 x7 : ffff80000c01dd94 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800011a21464
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 del_gendisk+0x698/0x72c block/genhd.c:589
 loop_remove drivers/block/loop.c:2452 [inline]
 loop_control_remove drivers/block/loop.c:2509 [inline]
 loop_control_ioctl+0x4a8/0x62c drivers/block/loop.c:2547
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 13524
hardirqs last  enabled at (13523): [<ffff8000088c980c>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (13524): [<ffff800011957088>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387
softirqs last  enabled at (12856): [<ffff800008020ccc>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (12856): [<ffff800008020ccc>] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587
softirqs last disabled at (12847): [<ffff8000081b573c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (12847): [<ffff8000081b573c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (12847): [<ffff8000081b573c>] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
---[ end trace 8620a6fa9472fbd2 ]---