kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 10860 Comm: syz-executor.0 Not tainted 5.1.0-rc6+ #163
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:xs_net include/net/xfrm.h:264 [inline]
RIP: 0010:xfrmi_decode_session net/xfrm/xfrm_interface.c:82 [inline]
RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 net/xfrm/xfrm_interface.c:73
Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 3b 4c fb e8 8c 8f
RSP: 0018:ffff888057eff028 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880a9753ac0 RCX: ffffc90005dfb000
RDX: 0000000000000000 RSI: ffffffff8611fcb0 RDI: ffff88806eb359c8
RBP: ffff888057eff050 R08: ffff8880641f24c0 R09: ffffed1015d05bc0
R10: ffffed1015d05bbf R11: ffff8880ae82ddfb R12: 0000000000000000
R13: 0000000000000035 R14: ffff8880a9753ad0 R15: ffffffffffffffff
FS:  00007f2085b5c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e65e0 CR3: 000000009fcb9000 CR4: 00000000001406f0
Call Trace:
 __xfrm_policy_check+0x1f8/0x2730 net/xfrm/xfrm_policy.c:3522
 __xfrm_policy_check2 include/net/xfrm.h:1107 [inline]
 xfrm_policy_check include/net/xfrm.h:1112 [inline]
 xfrm6_policy_check include/net/xfrm.h:1122 [inline]
 vti6_rcv+0x51a/0x970 net/ipv6/ip6_vti.c:316
 xfrm6_esp_rcv+0xd8/0x230 net/ipv6/xfrm6_protocol.c:73
 ip6_protocol_deliver_rcu+0x303/0x16c0 net/ipv6/ip6_input.c:394
 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
 NF_HOOK include/linux/netfilter.h:296 [inline]
 NF_HOOK include/linux/netfilter.h:290 [inline]
 ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:443
 ip6_mc_input+0x4aa/0xf30 net/ipv6/ip6_input.c:537
 dst_input include/net/dst.h:439 [inline]
 ip6_rcv_finish+0x1e7/0x320 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:296 [inline]
 NF_HOOK include/linux/netfilter.h:290 [inline]
 ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272
 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4990
 __netif_receive_skb+0x2c/0x1d0 net/core/dev.c:5102
 netif_receive_skb_internal+0x117/0x5c0 net/core/dev.c:5205
 napi_frags_finish net/core/dev.c:5772 [inline]
 napi_gro_frags+0xade/0xd10 net/core/dev.c:5846
 tun_get_user+0x2f3f/0x3ff0 drivers/net/tun.c:1981
 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2027
 call_write_iter include/linux/fs.h:1866 [inline]
 do_iter_readv_writev+0x5e1/0x8e0 fs/read_write.c:681
 do_iter_write fs/read_write.c:957 [inline]
 do_iter_write+0x184/0x610 fs/read_write.c:938
 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1002
 do_writev+0x15e/0x370 fs/read_write.c:1037
 __do_sys_writev fs/read_write.c:1110 [inline]
 __se_sys_writev fs/read_write.c:1107 [inline]
 __x64_sys_writev+0x75/0xb0 fs/read_write.c:1107
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458c61
Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b9 fb ff c3 48 83 ec 08 e8 1a 2d 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 63 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f2085b5bba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000000290 RCX: 0000000000458c61
RDX: 0000000000000001 RSI: 00007f2085b5bc00 RDI: 00000000000000f0
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f2085b5c9d0 R11: 0000000000000293 R12: 00007f2085b5c6d4
R13: 00000000004c76b6 R14: 00000000004dd610 R15: 00000000ffffffff
Modules linked in:
---[ end trace 0607258fe84919aa ]---
RIP: 0010:xs_net include/net/xfrm.h:264 [inline]
RIP: 0010:xfrmi_decode_session net/xfrm/xfrm_interface.c:82 [inline]
RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 net/xfrm/xfrm_interface.c:73
Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 3b 4c fb e8 8c 8f
RSP: 0018:ffff888057eff028 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880a9753ac0 RCX: ffffc90005dfb000
RDX: 0000000000000000 RSI: ffffffff8611fcb0 RDI: ffff88806eb359c8
RBP: ffff888057eff050 R08: ffff8880641f24c0 R09: ffffed1015d05bc0
R10: ffffed1015d05bbf R11: ffff8880ae82ddfb R12: 0000000000000000
R13: 0000000000000035 R14: ffff8880a9753ad0 R15: ffffffffffffffff
FS:  00007f2085b5c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e65e0 CR3: 000000009fcb9000 CR4: 00000000001406f0