general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]
CPU: 1 PID: 6411 Comm: syz-executor.1 Not tainted 6.1.0-rc6-next-20221122 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:xfrm_policy_lookup_bytype.constprop.0.cold+0x21/0x5d
Code: 93 67 f2 ff e9 04 fc 5e ff e8 59 de 0b fd 48 8b 44 24 10 48 8d b8 cc 00 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 20 48
RSP: 0018:ffff888046e87340 EFLAGS: 00010213
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90006228000
RDX: 0000000000000019 RSI: ffffffff843d2047 RDI: 00000000000000cc
RBP: 0000000000000001 R08: 0000000000000007 R09: fffffffffffff000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007efe2a9b8700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efe2d556018 CR3: 000000003c68e000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 __xfrm_policy_check+0xdd7/0x2190
 icmpv6_rcv+0x8bd/0x1d30
 ip6_protocol_deliver_rcu+0xdea/0x1870
 ip6_input_finish+0x150/0x2c0
 ip6_input+0xa0/0xe0
 ipv6_rcv+0x159/0x520
 __netif_receive_skb_one_core+0x12e/0x1f0
 __netif_receive_skb+0x1f/0x1c0
 netif_receive_skb+0x120/0x860
 tun_rx_batched+0x4b3/0x7b0
 tun_get_user+0x20af/0x34c0
 tun_chr_write_iter+0xdf/0x1e0
 vfs_write+0xa4f/0xe40
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7efe2d3f55ff
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48
RSP: 002b:00007efe2a9b8150 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007efe2d555f60 RCX: 00007efe2d3f55ff
RDX: 0000000000000046 RSI: 0000000020000100 RDI: 00000000000000f0
RBP: 00007efe2d49cf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffdd0b105cf R14: 00007efe2a9b8300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:xfrm_policy_lookup_bytype.constprop.0.cold+0x21/0x5d
Code: 93 67 f2 ff e9 04 fc 5e ff e8 59 de 0b fd 48 8b 44 24 10 48 8d b8 cc 00 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 20 48
RSP: 0018:ffff888046e87340 EFLAGS: 00010213
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90006228000
RDX: 0000000000000019 RSI: ffffffff843d2047 RDI: 00000000000000cc
RBP: 0000000000000001 R08: 0000000000000007 R09: fffffffffffff000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007efe2a9b8700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efe2d556018 CR3: 000000003c68e000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess):
   0:	93                   	xchg   %eax,%ebx
   1:	67 f2 ff             	addr32 repnz (bad)
   4:	e9 04 fc 5e ff       	jmpq   0xff5efc0d
   9:	e8 59 de 0b fd       	callq  0xfd0bde67
   e:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
  13:	48 8d b8 cc 00 00 00 	lea    0xcc(%rax),%rdi
  1a:	b8 ff ff 37 00       	mov    $0x37ffff,%eax
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 e0 2a          	shl    $0x2a,%rax
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx <-- trapping instruction
  2e:	48 89 f8             	mov    %rdi,%rax
  31:	83 e0 07             	and    $0x7,%eax
  34:	83 c0 03             	add    $0x3,%eax
  37:	38 d0                	cmp    %dl,%al
  39:	7c 04                	jl     0x3f
  3b:	84 d2                	test   %dl,%dl
  3d:	75 20                	jne    0x5f
  3f:	48                   	rex.W