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: 28672 Comm: syz.1.2976 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:xfrm_alloc_spi+0xe0e/0xf30
Code: 00 fc ff df 80 3c 03 00 4c 8b 34 24 74 08 4c 89 f7 e8 86 e1 00 f8 4d 8b 36 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 48 8b 5c 24 58 74 08 4c 89 f7 e8 4f e2 00 f8 4d 89 3e
RSP: 0018:ffffc90006a070e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff11003ff7516 RCX: dffffc0000000000
RDX: ffffc90004073000 RSI: 00000000000001b5 RDI: 00000000000001b6
RBP: ffffc90006a07230 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000002 R12: 1ffff11003ff73f6
R13: ffff88801ffba8b0 R14: 0000000000000000 R15: ffff88801ffba8a8
FS:  00007f209295f6c0(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000200 CR3: 000000002525c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 xfrm_alloc_userspi+0x70b/0xc90
 xfrm_user_rcv_msg+0x7a3/0xab0
 netlink_rcv_skb+0x208/0x470
 xfrm_netlink_rcv+0x79/0x90
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2091b8ec29
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:00007f209295f038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2091dd5fa0 RCX: 00007f2091b8ec29
RDX: 0000000024000014 RSI: 0000200000000200 RDI: 0000000000000003
RBP: 00007f2091c11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2091dd6038 R14: 00007f2091dd5fa0 R15: 00007ffd45d820a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:xfrm_alloc_spi+0xe0e/0xf30
Code: 00 fc ff df 80 3c 03 00 4c 8b 34 24 74 08 4c 89 f7 e8 86 e1 00 f8 4d 8b 36 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 48 8b 5c 24 58 74 08 4c 89 f7 e8 4f e2 00 f8 4d 89 3e
RSP: 0018:ffffc90006a070e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff11003ff7516 RCX: dffffc0000000000
RDX: ffffc90004073000 RSI: 00000000000001b5 RDI: 00000000000001b6
RBP: ffffc90006a07230 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000002 R12: 1ffff11003ff73f6
R13: ffff88801ffba8b0 R14: 0000000000000000 R15: ffff88801ffba8a8
FS:  00007f209295f6c0(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000200 CR3: 000000002525c000 CR4: 00000000000006f0
