Unable to handle kernel paging request at virtual address dfff800000000001
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
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
[dfff800000000001] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6720 Comm: syz.0.33 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : _compound_head include/linux/page-flags.h:242 [inline]
pc : put_page include/linux/mm.h:1552 [inline]
pc : skb_page_unref include/linux/skbuff_ref.h:43 [inline]
pc : __skb_frag_unref+0x80/0x214 include/linux/skbuff_ref.h:56
lr : netmem_to_page include/net/netmem.h:83 [inline]
lr : skb_page_unref include/linux/skbuff_ref.h:43 [inline]
lr : __skb_frag_unref+0x78/0x214 include/linux/skbuff_ref.h:56
sp : ffff8000a2b178b0
x29: ffff8000a2b178b0 x28: dfff800000000000 x27: 0000000000000001
x26: ffff0000ce042e40 x25: ffff0000ce042e70 x24: 0000000000000000
x23: ffff0000ce042e42 x22: 1fffe00019c085c8 x21: dfff800000000000
x20: 0000000000000008 x19: 0000000000000000 x18: ffff8000a2b177c0
x17: ffff800080cf5620 x16: ffff80008069d39c x15: 0000000000000001
x14: 1fffe00019c085cc x13: 0000000000000000 x12: 0000000000000000
x11: ffff600019c085cd x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000001 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff800089793364
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 _compound_head include/linux/page-flags.h:242 [inline] (P)
 put_page include/linux/mm.h:1552 [inline] (P)
 skb_page_unref include/linux/skbuff_ref.h:43 [inline] (P)
 __skb_frag_unref+0x80/0x214 include/linux/skbuff_ref.h:56 (P)
 skb_release_data+0x3c4/0x618 net/core/skbuff.c:1119
 skb_release_all net/core/skbuff.c:1190 [inline]
 __kfree_skb net/core/skbuff.c:1204 [inline]
 sk_skb_reason_drop+0x1d4/0x43c net/core/skbuff.c:1242
 kfree_skb_reason include/linux/skbuff.h:1263 [inline]
 __skb_queue_purge_reason include/linux/skbuff.h:3343 [inline]
 skb_queue_purge_reason+0x33c/0x444 net/core/skbuff.c:3945
 skb_queue_purge include/linux/skbuff.h:3356 [inline]
 packet_release+0xa0c/0xca8 net/packet/af_packet.c:3247
 __sock_release net/socket.c:640 [inline]
 sock_close+0xa4/0x1e8 net/socket.c:1408
 __fput+0x1bc/0x75c fs/file_table.c:450
 ____fput+0x20/0x30 fs/file_table.c:478
 task_work_run+0x230/0x2e0 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 37000653 979e07ef 91002274 d343fe88 (38756908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	37000653 	tbnz	w19, #0, 0xc8
   4:	979e07ef 	bl	0xfffffffffe781fc0
   8:	91002274 	add	x20, x19, #0x8
   c:	d343fe88 	lsr	x8, x20, #3
* 10:	38756908 	ldrb	w8, [x8, x21] <-- trapping instruction