Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 5929 Comm: kworker/1:6 Not tainted 6.16.0-rc5-next-20250711-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
RIP: 0010:hlist_add_before_rcu include/linux/rculist.h:705 [inline]
RIP: 0010:xfrm_state_find+0x4c9b/0x5400 net/xfrm/xfrm_state.c:1579
Code: 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 29 88 04 f8 49 8b 1f 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 f7 88 04 f8 4c 89 23 48 b8 00 00 00
RSP: 0018:ffffc900049df100 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffffc900049df320 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000000 R12: ffff88806f5cd9a8
R13: ffff88806f5cd980 R14: ffff88806f5cd9a8 R15: ffff88806f5cd9b0
FS:  0000000000000000(0000) GS:ffff888125cc6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33816ff8 CR3: 000000000df36000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2522 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2573 [inline]
 xfrm_resolve_and_create_bundle+0x768/0x2f90 net/xfrm/xfrm_policy.c:2871
 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:3106 [inline]
 xfrm_lookup_with_ifid+0x58a/0x1a70 net/xfrm/xfrm_policy.c:3237
 xfrm_lookup net/xfrm/xfrm_policy.c:3336 [inline]
 xfrm_lookup_route+0x3c/0x1c0 net/xfrm/xfrm_policy.c:3347
 send6+0x4cb/0x8d0 drivers/net/wireguard/socket.c:139
 wg_socket_send_skb_to_peer+0x111/0x1d0 drivers/net/wireguard/socket.c:178
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x1c8/0x7c0 drivers/net/wireguard/send.c:276
 process_one_work kernel/workqueue.c:3239 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3322
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hlist_add_before_rcu include/linux/rculist.h:705 [inline]
RIP: 0010:xfrm_state_find+0x4c9b/0x5400 net/xfrm/xfrm_state.c:1579
Code: 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 29 88 04 f8 49 8b 1f 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 f7 88 04 f8 4c 89 23 48 b8 00 00 00
RSP: 0018:ffffc900049df100 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffffc900049df320 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000000 R12: ffff88806f5cd9a8
R13: ffff88806f5cd980 R14: ffff88806f5cd9a8 R15: ffff88806f5cd9b0
FS:  0000000000000000(0000) GS:ffff888125cc6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33816ff8 CR3: 000000000df36000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 7 bytes skipped:
   0:	df 80 3c 03 00 74    	filds  0x7400033c(%rax)
   6:	08 4c 89 ff          	or     %cl,-0x1(%rcx,%rcx,4)
   a:	e8 29 88 04 f8       	call   0xf8048838
   f:	49 8b 1f             	mov    (%r15),%rbx
  12:	48 89 d8             	mov    %rbx,%rax
  15:	48 c1 e8 03          	shr    $0x3,%rax
  19:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  20:	fc ff df
* 23:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  27:	74 08                	je     0x31
  29:	48 89 df             	mov    %rbx,%rdi
  2c:	e8 f7 88 04 f8       	call   0xf8048928
  31:	4c 89 23             	mov    %r12,(%rbx)
  34:	48                   	rex.W
  35:	b8                   	.byte 0xb8
  36:	00 00                	add    %al,(%rax)