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: 1 UID: 0 PID: 532 Comm: kworker/u8:5 Not tainted 6.15.0-rc2-syzkaller-gc72692105976 #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+0x90/0x4d4 kernel/bpf/memalloc.c:638
lr : free_all kernel/bpf/memalloc.c:268 [inline]
lr : drain_mem_cache+0x88/0x4d4 kernel/bpf/memalloc.c:638
sp : ffff80009d477920
x29: ffff80009d477920 x28: 0000000000000008 x27: 1ffff00011f0384b
x26: dfff800000000000 x25: 1fffe0001993e439 x24: fffffdffbf748130
x23: dfff800000000000 x22: fffffdffbf7481d8 x21: 0000000000000001
x20: fffffdffbf748130 x19: 0000000000000000 x18: 0000000000000000
x17: ffff800080383868 x16: ffff800080483594 x15: 0000000000000001
x14: 1fffffbff7ee903b x13: 0000000000000000 x12: 0000000000000000
x11: ffff7fbff7ee903c x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000001 x3 : ffff8000808cb9f8
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 free_all kernel/bpf/memalloc.c:268 [inline] (P)
 drain_mem_cache+0x90/0x4d4 kernel/bpf/memalloc.c:638 (P)
 bpf_mem_alloc_destroy+0x13c/0x478 kernel/bpf/memalloc.c:754
 trie_free+0x12c/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+0x810/0x1638 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x97c/0xf08 kernel/workqueue.c:3400
 kthread+0x674/0x7dc kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862
Code: aa1503e1 97f7858a b4000375 d343fea8 (38776908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1503e1 	mov	x1, x21
   4:	97f7858a 	bl	0xffffffffffde162c
   8:	b4000375 	cbz	x21, 0x74
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	38776908 	ldrb	w8, [x8, x23] <-- trapping instruction