Unable to handle kernel paging request at virtual address dfff80000000000a
KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff80000000000a] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: loop2 loop_workfn
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : vfs_iter_write+0x50/0x6e8 fs/read_write.c:879
lr : vfs_iter_write+0x40/0x6e8 fs/read_write.c:875
sp : ffff8000975d7510
x29: ffff8000975d7520 x28: 000000000000000a x27: dfff800000000000
x26: dfff800000000000 x25: 0000000000000000 x24: 1fffe0001d48e54f
x23: ffff8000975d77f0 x22: ffff8000975d7840 x21: 0000000000000000
x20: 0000000000000050 x19: 0000000000000000 x18: 1fffe000366d79ee
x17: ffff80008f56d000 x16: ffff80008b274880 x15: 0000000000000005
x14: 1ffff00012ebaefe x13: 0000000000000000 x12: 0000000000000000
x11: ffff700012ebaf03 x10: 0000000000ff0100 x9 : 0000000000000003
x8 : ffff0000c19d8000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000001000 x3 : 0000000000000000
x2 : ffff8000975d7840 x1 : ffff8000975d77f0 x0 : 0000000000000000
Call trace:
 vfs_iter_write+0x50/0x6e8 fs/read_write.c:879
 lo_write_bvec drivers/block/loop.c:243 [inline]
 lo_write_simple drivers/block/loop.c:264 [inline]
 do_req_filebacked drivers/block/loop.c:511 [inline]
 loop_handle_cmd drivers/block/loop.c:1910 [inline]
 loop_process_work+0x118c/0x1fe8 drivers/block/loop.c:1945
 loop_workfn+0x54/0x68 drivers/block/loop.c:1969
 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x978/0xec4 kernel/workqueue.c:3389
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Code: 91014274 d343fe9c 12000a89 11000d29 (38fb6b88) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	91014274 	add	x20, x19, #0x50
   4:	d343fe9c 	lsr	x28, x20, #3
   8:	12000a89 	and	w9, w20, #0x7
   c:	11000d29 	add	w9, w9, #0x3
* 10:	38fb6b88 	ldrsb	w8, [x28, x27] <-- trapping instruction