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: 4416 Comm: kworker/u4:7 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
Workqueue: phy3 ieee80211_csa_finalize_work
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ieee80211_mesh_build_beacon+0x12c/0x1934 net/mac80211/mesh.c:827
lr : ieee80211_mesh_build_beacon+0x120/0x1934 net/mac80211/mesh.c:826
sp : ffff8000210579c0
x29: ffff800021057a30 x28: dfff800000000000 x27: ffff0000f5c19c80
x26: dfff800000000000 x25: ffff0000f5c195a8 x24: 00000000000015a8
x23: ffff0000f5c1aab0 x22: ffff0000f5c1aaaa x21: 0000000000000001
x20: 0000000000000000 x19: ffff0000f5c199f8 x18: 1fffe00033e66f7e
x17: ffff80000820c3e8 x16: ffff8000082dbe80 x15: 000000000004ffff
x14: 1ffff00002a7a071 x13: dfff800000000000 x12: 000000001080adaa
x11: ff00800011588b00 x10: 0000000000000000 x9 : ffff800011588b00
x8 : 0000000000000000 x7 : ffff80001158d128 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 ieee80211_mesh_build_beacon+0x12c/0x1934 net/mac80211/mesh.c:827
 ieee80211_mesh_rebuild_beacon+0x88/0x12c net/mac80211/mesh.c:1000
 ieee80211_mesh_finish_csa+0xf0/0x1a4 net/mac80211/mesh.c:1388
 ieee80211_set_after_csa_beacon net/mac80211/cfg.c:3560 [inline]
 __ieee80211_csa_finalize net/mac80211/cfg.c:3609 [inline]
 ieee80211_csa_finalize+0x474/0xbf8 net/mac80211/cfg.c:3632
 ieee80211_csa_finalize_work+0xdc/0x12c net/mac80211/cfg.c:3657
 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: 97a9a978 14000002 97a9a976 d343fe88 (387c6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97a9a978 	bl	0xfffffffffea6a5e0
   4:	14000002 	b	0xc
   8:	97a9a976 	bl	0xfffffffffea6a5e0
   c:	d343fe88 	lsr	x8, x20, #3
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction