------------[ cut here ]------------ kernel BUG at net/key/af_key.c:2068! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 2 PID: 3061 Comm: syzkaller238168 Not tainted 4.13.0-rc6-next-20170825+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 task: ffff88003b4901c0 task.stack: ffff88003dd68000 RIP: 0010:pfkey_xfrm_policy2msg+0x1cc6/0x2330 net/key/af_key.c:2068 RSP: 0018:ffff88003dd6f4b0 EFLAGS: 00010297 RAX: ffff88003b4901c0 RBX: ffff88006978828c RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000204e RDI: ffff88006978812c RBP: ffff88003dd6f588 R08: 0000000000000001 R09: ffff8800697884c0 R10: 000000000000001b R11: ffffed000d2f10b2 R12: ffff880069788148 R13: 0000000000000001 R14: 0000000000000008 R15: ffff880069788040 FS: 00007f12f7723700(0000) GS:ffff88006de00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002ff0 CR3: 000000006b712000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dump_sp+0x14f/0x510 net/key/af_key.c:2669 xfrm_policy_walk+0x2f1/0xa30 net/xfrm/xfrm_policy.c:1015 pfkey_dump_sp+0x42/0x50 net/key/af_key.c:2692 pfkey_do_dump+0xaa/0x3f0 net/key/af_key.c:299 pfkey_spddump+0x1a0/0x210 net/key/af_key.c:2719 pfkey_process+0x60b/0x720 net/key/af_key.c:2809 pfkey_sendmsg+0x4d6/0x9f0 net/key/af_key.c:3648 sock_sendmsg_nosec net/socket.c:633 [inline] sock_sendmsg+0xca/0x110 net/socket.c:643 sock_write_iter+0x320/0x5e0 net/socket.c:912 call_write_iter include/linux/fs.h:1744 [inline] new_sync_write fs/read_write.c:457 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:470 vfs_write+0x18f/0x510 fs/read_write.c:518 SYSC_write fs/read_write.c:565 [inline] SyS_write+0xef/0x220 fs/read_write.c:557 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x4402b9 RSP: 002b:00007f12f7722d88 EFLAGS: 00000206 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004402b9 RDX: 0000000000000010 RSI: 0000000020002ff0 RDI: 0000000000000008 RBP: 0000000000000086 R08: 00007f12f7723700 R09: 0000000000000000 R10: 00007f12f7723700 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f12f77239c0 R15: 00007f12f7723700 Code: ff ff ff 10 00 00 00 e9 2a e4 ff ff e8 b4 b3 2a fd 48 8b 85 70 ff ff ff be 01 00 00 00 66 89 70 04 e9 73 f4 ff ff e8 9a b3 2a fd <0f> 0b e8 d3 54 5f fd e9 13 ff ff ff 48 89 df e8 66 55 5f fd e9 RIP: pfkey_xfrm_policy2msg+0x1cc6/0x2330 net/key/af_key.c:2068 RSP: ffff88003dd6f4b0 ---[ end trace 64327239e05a8f8d ]---