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: 1 PID: 13795 Comm: syz-executor.5 Not tainted 5.0.0-rc7-next-20190220 #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:xs_net include/net/xfrm.h:253 [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 91 62 55 fb e8 cc b7 RSP: 0018:ffff888049f1f128 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88809589f780 RCX: ffffc90010874000 RDX: 0000000000000000 RSI: ffffffff86089a10 RDI: ffff88808e12d188 RBP: ffff888049f1f150 R08: ffff88809f3d8700 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000000 R13: 0000000000000036 R14: ffff88809589f790 R15: ffffffffffffffff FS: 00007f4008a84700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004db8c0 CR3: 0000000085456000 CR4: 00000000001406e0 Call Trace: __xfrm_policy_check+0x1f8/0x2730 net/xfrm/xfrm_policy.c:3316 __xfrm_policy_check2 include/net/xfrm.h:1176 [inline] xfrm_policy_check include/net/xfrm.h:1181 [inline] xfrm4_policy_check include/net/xfrm.h:1186 [inline] vti_input+0x4e3/0x7b0 net/ipv4/ip_vti.c:63 vti_rcv+0x10b/0x140 net/ipv4/ip_vti.c:109 xfrm4_esp_rcv+0xd8/0x230 net/ipv4/xfrm4_protocol.c:100 ip_protocol_deliver_rcu+0x60/0x8e0 net/ipv4/ip_input.c:208 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:255 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1db/0x2f0 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 netif_receive_skb_internal+0x117/0x660 net/core/dev.c:5186 napi_frags_finish net/core/dev.c:5753 [inline] napi_gro_frags+0xade/0xd10 net/core/dev.c:5827 tun_get_user+0x28ae/0x3b20 drivers/net/tun.c:1974 tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2019 call_write_iter include/linux/fs.h:1857 [inline] do_iter_readv_writev+0x5e1/0x8e0 fs/read_write.c:680 do_iter_write fs/read_write.c:956 [inline] do_iter_write+0x184/0x610 fs/read_write.c:937 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1001 do_writev+0xf6/0x290 fs/read_write.c:1036 __do_sys_writev fs/read_write.c:1109 [inline] __se_sys_writev fs/read_write.c:1106 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1106 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ce1 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:00007f4008a83ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000000003e RCX: 0000000000457ce1 RDX: 0000000000000001 RSI: 00007f4008a83bf0 RDI: 00000000000000f0 RBP: 0000000020000140 R08: 00000000000000f0 R09: 0000000000000000 R10: 00007f4008a849d0 R11: 0000000000000293 R12: 00007f4008a846d4 R13: 00000000004c6476 R14: 00000000004db8c0 R15: 00000000ffffffff Modules linked in: ---[ end trace 45088b4f6e543a5b ]--- RIP: 0010:xs_net include/net/xfrm.h:253 [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 91 62 55 fb e8 cc b7 RSP: 0018:ffff888049f1f128 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88809589f780 RCX: ffffc90010874000 RDX: 0000000000000000 RSI: ffffffff86089a10 RDI: ffff88808e12d188 RBP: ffff888049f1f150 R08: ffff88809f3d8700 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000000 R13: 0000000000000036 R14: ffff88809589f790 R15: ffffffffffffffff FS: 00007f4008a84700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004db8c0 CR3: 0000000085456000 CR4: 00000000001406e0