el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5757 at block/genhd.c:549 device_add_disk+0x604/0xaf4
Modules linked in:
CPU: 1 PID: 5757 Comm: syz.3.390 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : device_add_disk+0x604/0xaf4
lr : device_add_disk+0x600/0xaf4 block/genhd.c:547
sp : ffff800021147b10
x29: ffff800021147b70 x28: dfff800000000000 x27: ffff0000c5203ac0
x26: ffff0000c5203fbc x25: 00000000ffffffea x24: ffff0000ccd1e8a0
x23: 1fffe000199a3d14 x22: 0000000000000001 x21: ffff0000ccd1e890
x20: 0000000000000007 x19: ffff0000ccd1e800 x18: 0000000000000001
x17: ffff8000089c9954 x16: ffff8000082ec9a8 x15: ffff8000089c9954
x14: ffff80000c06ba9c x13: ffff80000c06c530 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000d13f3680
x8 : ffff80000a858574 x7 : 0000000000000000 x6 : ffff80000805d400
x5 : ffff0000e3e3f460 x4 : 0000000000000000 x3 : ffff80000ab70c3c
x2 : 0000000000000001 x1 : 0000000000000007 x0 : 0000000000000103
Call trace:
 device_add_disk+0x604/0xaf4
 add_disk include/linux/genhd.h:203 [inline]
 loop_add+0x554/0x7ac drivers/block/loop.c:2430
 loop_control_ioctl+0xec/0x62c drivers/block/loop.c:2545
 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:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 588
hardirqs last  enabled at (587): [<ffff8000088d70f8>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (588): [<ffff800011abda6c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (578): [<ffff8000081b6d74>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (578): [<ffff8000081b6d74>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (557): [<ffff8000081b740c>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (557): [<ffff8000081b740c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (557): [<ffff8000081b740c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (557): [<ffff8000081b740c>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
---[ end trace be600d9d3a1f5daf ]---