netlink: 2 bytes leftover after parsing attributes in process `syz-executor3'.
WARNING: CPU: 0 PID: 4205 at ./include/net/sock.h:1510 sock_owned_by_me include/net/sock.h:1510 [inline]
WARNING: CPU: 0 PID: 4205 at ./include/net/sock.h:1510 sock_owned_by_user include/net/sock.h:1516 [inline]
WARNING: CPU: 0 PID: 4205 at ./include/net/sock.h:1510 strp_data_ready+0x2b7/0x390 net/strparser/strparser.c:404
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4205 Comm: syz-executor3 Not tainted 4.15.0-rc4-next-20171221+ #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:177
 fixup_bug arch/x86/kernel/traps.c:246 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
RIP: 0010:sock_owned_by_me include/net/sock.h:1510 [inline]
RIP: 0010:sock_owned_by_user include/net/sock.h:1516 [inline]
RIP: 0010:strp_data_ready+0x2b7/0x390 net/strparser/strparser.c:404
RSP: 0018:ffff8801bdc670b8 EFLAGS: 00010216
RAX: 0000000000010000 RBX: ffff8801be0d3bc8 RCX: ffffffff84bbc257
RDX: 000000000000439a RSI: ffffc90002afb000 RDI: ffffffff866e58a0
RBP: ffff8801bdc670d8 R08: 0000000000000000 R09: ffffffff858add60
R10: ffff8801bdc66fa0 R11: dffffc0000000000 R12: ffff8801d9a86980
R13: ffff8801be0d3bd0 R14: ffff8801cd461b40 R15: 0000000000000000
 psock_data_ready+0x56/0x70 net/kcm/kcmsock.c:353
 __netlink_sendskb+0x98/0xc0 net/netlink/af_netlink.c:1255
 netlink_sendskb net/netlink/af_netlink.c:1261 [inline]
 netlink_unicast+0x55e/0x6a0 net/netlink/af_netlink.c:1349
 netlink_ack+0x722/0xa10 net/netlink/af_netlink.c:2412
 netlink_rcv_skb+0x369/0x460 net/netlink/af_netlink.c:2447
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4540
 netlink_unicast_kernel net/netlink/af_netlink.c:1308 [inline]
 netlink_unicast+0x4be/0x6a0 net/netlink/af_netlink.c:1334
 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1897
 sock_sendmsg_nosec net/socket.c:628 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:638
 kernel_sendmsg+0x47/0x60 net/socket.c:646
 sock_no_sendpage+0x1cc/0x280 net/core/sock.c:2581
 kernel_sendpage+0x8d/0xe0 net/socket.c:3347
 kcm_write_msgs+0x404/0x1b80 net/kcm/kcmsock.c:646
 kcm_sendmsg+0x1475/0x22b0 net/kcm/kcmsock.c:1035
 sock_sendmsg_nosec net/socket.c:628 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:638
 sock_write_iter+0x31a/0x5d0 net/socket.c:907
 call_write_iter include/linux/fs.h:1776 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x684/0x970 fs/read_write.c:482
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452ac9
RSP: 002b:00007f60d7c96c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000000000034 RSI: 0000000020a47f20 RDI: 0000000000000014
RBP: 000000000000035b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f3128
R13: 00000000ffffffff R14: 00007f60d7c976d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..