Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
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
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 4792 Comm: kworker/0:3 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Workqueue: events vidtv_mux_tick
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : vidtv_psi_ts_psi_write_into+0x3ac/0x8c4 drivers/media/test-drivers/vidtv/vidtv_psi.c:142
lr : vidtv_psi_ts_psi_write_into+0x38c/0x8c4 drivers/media/test-drivers/vidtv/vidtv_psi.c:142
sp : ffff8000936973a0
x29: ffff800093697440 x28: 1ffff000126d2eb2 x27: dfff800000000000
x26: 0000000000000000 x25: 1ffff000126d2eb0 x24: 00000000ae4c415d
x23: 0000000000000002 x22: 0000000000000178 x21: 0000000000000000
x20: 0000000000000008 x19: ffff800093697568 x18: 1fffe00035beb820
x17: 70202c31206c6176 x16: 0000000000000001 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000002 x12: 0000000000000000
x11: ffff8000936973e0 x10: ffff800093697594 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 00000000338b71ec
x5 : ffff8000a829f0d5 x4 : 0000000000000004 x3 : ffff800083d56070
x2 : 0000000000000000 x1 : ffff0000d0b48000 x0 : 0000000000000000
Call trace:
 vidtv_psi_ts_psi_write_into+0x3ac/0x8c4 drivers/media/test-drivers/vidtv/vidtv_psi.c:142 (P)
 vidtv_psi_table_header_write_into drivers/media/test-drivers/vidtv/vidtv_psi.c:744 [inline]
 vidtv_psi_pmt_write_into+0x2a8/0x844 drivers/media/test-drivers/vidtv/vidtv_psi.c:1176
 vidtv_mux_push_si drivers/media/test-drivers/vidtv/vidtv_mux.c:196 [inline]
 vidtv_mux_tick+0xc84/0x1b28 drivers/media/test-drivers/vidtv/vidtv_mux.c:408
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
Code: 97387490 91008268 f9400117 d343fee8 (38fb6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97387490 	bl	0xfffffffffce1d240
   4:	91008268 	add	x8, x19, #0x20
   8:	f9400117 	ldr	x23, [x8]
   c:	d343fee8 	lsr	x8, x23, #3
* 10:	38fb6908 	ldrsb	w8, [x8, x27] <-- trapping instruction