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: 44 Comm: kworker/u8:2 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound bpf_map_free_deferred
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : free_all kernel/bpf/memalloc.c:268 [inline]
pc : drain_mem_cache+0x90/0x494 kernel/bpf/memalloc.c:638
lr : free_all kernel/bpf/memalloc.c:268 [inline]
lr : drain_mem_cache+0x88/0x494 kernel/bpf/memalloc.c:638
sp : ffff800097d57960
x29: ffff800097d57960 x28: 1fffe0001832ee3b x27: ffffffffffffffff
x26: 0000000000000001 x25: dfff800000000000 x24: fffffdffbf6e0370
x23: dfff800000000000 x22: fffffdffbf704350 x21: 0000000000000001
x20: fffffdffbf7042a8 x19: 0000000000000000 x18: 1fffe0003386aa76
x17: ffff80008f31e000 x16: ffff80008051c10c x15: 0000000000000001
x14: 1fffffbff7ee086a x13: 0000000000000000 x12: 0000000000000000
x11: ffff7fbff7ee086b x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff800080b77728 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff800080916aa8
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 free_all kernel/bpf/memalloc.c:268 [inline] (P)
 drain_mem_cache+0x90/0x494 kernel/bpf/memalloc.c:638 (P)
 bpf_mem_alloc_destroy+0x120/0x450 kernel/bpf/memalloc.c:754
 trie_free+0x124/0x150 kernel/bpf/lpm_trie.c:652
 bpf_map_free kernel/bpf/syscall.c:861 [inline]
 bpf_map_free_deferred+0xdc/0x108 kernel/bpf/syscall.c:887
 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
Code: aa1503e1 97f80957 b4000375 d343fea8 (38776908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1503e1 	mov	x1, x21
   4:	97f80957 	bl	0xffffffffffe02560
   8:	b4000375 	cbz	x21, 0x74
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	38776908 	ldrb	w8, [x8, x23] <-- trapping instruction