Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 79 Comm: kworker/0:1H Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
Workqueue: kblockd blk_mq_run_work_fn
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : blk_mq_tag_is_reserved block/blk-mq-tag.h:70 [inline]
pc : __blk_mq_alloc_driver_tag block/blk-mq.c:1779 [inline]
pc : __blk_mq_get_driver_tag+0x154/0x6a8 block/blk-mq.c:1797
lr : blk_mq_tag_busy block/blk-mq-tag.h:55 [inline]
lr : __blk_mq_alloc_driver_tag block/blk-mq.c:1777 [inline]
lr : __blk_mq_get_driver_tag+0xf4/0x6a8 block/blk-mq.c:1797
sp : ffff80001ff27830
x29: ffff80001ff27840 x28: ffff0000cfc3d800 x27: 0000000000000000
x26: 1fffe00019f81704 x25: ffff0000cfc0b820 x24: dfff800000000000
x23: ffff0000cfb1ae00 x22: 0000000000000004 x21: 00000000ffffffff
x20: ffff0000cfc3d800 x19: ffff0000cfc0b800 x18: 1fffe00033e6df7e
x17: ffff80018a079000 x16: ffff8000082f2d54 x15: 000000000004ffff
x14: 0000000000000002 x13: 1ffff00003fe4f30 x12: 0000000000000000
x11: ff0080000a7c5fbc x10: 0000000000000000 x9 : ffff80000a7c5fbc
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff8000187edd60 x4 : 0000000000000000 x3 : 0000000000000010
x2 : ffff0000cfe23688 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 blk_mq_tag_is_reserved block/blk-mq-tag.h:70 [inline]
 __blk_mq_alloc_driver_tag block/blk-mq.c:1779 [inline]
 __blk_mq_get_driver_tag+0x154/0x6a8 block/blk-mq.c:1797
 blk_mq_get_driver_tag block/blk-mq.h:297 [inline]
 blk_mq_dispatch_rq_list+0xbf4/0x1d3c block/blk-mq.c:2079
 __blk_mq_sched_dispatch_requests+0x2b0/0x3c4 block/blk-mq-sched.c:305
 blk_mq_sched_dispatch_requests+0xcc/0x17c block/blk-mq-sched.c:338
 __blk_mq_run_hw_queue+0x1d8/0x2b0 block/blk-mq.c:2208
 blk_mq_run_work_fn+0x60/0xb0 block/blk-mq.c:2522
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 35002348 910012d6 b94002b5 d343fec8 (38f86908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	35002348 	cbnz	w8, 0x468
   4:	910012d6 	add	x22, x22, #0x4
   8:	b94002b5 	ldr	w21, [x21]
   c:	d343fec8 	lsr	x8, x22, #3
* 10:	38f86908 	ldrsb	w8, [x8, x24] <-- trapping instruction