Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 12823 Comm: syz.3.1810 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:hlist_add_before_rcu include/linux/rculist.h:705 [inline]
RIP: 0010:xfrm_state_find+0x4c9b/0x5400 net/xfrm/xfrm_state.c:1574
Code: 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 09 46 02 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 d7 46 02 f8 4c 89 23 48 b8 00 00 00
RSP: 0018:ffffc90002f77400 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: ffffc9000dfbe000 RSI: 00000000000006d8 RDI: 00000000000006d9
RBP: ffffc90002f77620 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000002 R12: ffff88805286d128
R13: ffff88805286d100 R14: ffff88805286c028 R15: ffff88805286d130
FS:  00007ff3215a56c0(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3215a4f98 CR3: 000000007cbf2000 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+0x768/0x2f80 net/xfrm/xfrm_policy.c:2871
 xfrm_lookup_with_ifid+0x2a7/0x1a70 net/xfrm/xfrm_policy.c:3205
 xfrm_lookup net/xfrm/xfrm_policy.c:3336 [inline]
 xfrm_lookup_route+0x3c/0x1c0 net/xfrm/xfrm_policy.c:3347
 ip_route_connect include/net/route.h:355 [inline]
 __ip4_datagram_connect+0x9a5/0x1270 net/ipv4/datagram.c:49
 __ip6_datagram_connect+0x9f0/0x1150 net/ipv6/datagram.c:196
 ip6_datagram_connect net/ipv6/datagram.c:279 [inline]
 ip6_datagram_connect_v6_only+0x63/0xa0 net/ipv6/datagram.c:291
 __sys_connect_file net/socket.c:2086 [inline]
 __sys_connect+0x316/0x440 net/socket.c:2105
 __do_sys_connect net/socket.c:2111 [inline]
 __se_sys_connect net/socket.c:2108 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:2108
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff32078ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff3215a5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007ff3209b6090 RCX: 00007ff32078ebe9
RDX: 000000000000001c RSI: 0000200000000040 RDI: 0000000000000005
RBP: 00007ff320811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff3209b6128 R14: 00007ff3209b6090 R15: 00007ff320adfa28
 </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:1574
Code: 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 09 46 02 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 d7 46 02 f8 4c 89 23 48 b8 00 00 00
RSP: 0018:ffffc90002f77400 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: ffffc9000dfbe000 RSI: 00000000000006d8 RDI: 00000000000006d9
RBP: ffffc90002f77620 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000002 R12: ffff88805286d128
R13: ffff88805286d100 R14: ffff88805286c028 R15: ffff88805286d130
FS:  00007ff3215a56c0(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3215a4f98 CR3: 000000007cbf2000 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 09 46 02 f8       	call   0xf8024618
   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 d7 46 02 f8       	call   0xf8024708
  31:	4c 89 23             	mov    %r12,(%rbx)
  34:	48                   	rex.W
  35:	b8                   	.byte 0xb8
  36:	00 00                	add    %al,(%rax)