WARNING: CPU: 0 PID: 2987 at ./include/net/sock.h:1505 sock_owned_by_me include/net/sock.h:1505 [inline]
WARNING: CPU: 0 PID: 2987 at ./include/net/sock.h:1505 sock_owned_by_user include/net/sock.h:1511 [inline]
WARNING: CPU: 0 PID: 2987 at ./include/net/sock.h:1505 strp_data_ready+0x2b7/0x390 net/strparser/strparser.c:404
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2987 Comm: syzkaller392538 Not tainted 4.14.0-rc5+ #142
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 panic+0x1e4/0x417 kernel/panic.c:181
 __warn+0x1c4/0x1d9 kernel/panic.c:542
 report_bug+0x211/0x2d0 lib/bug.c:183
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:178
 do_trap_no_signal arch/x86/kernel/traps.c:212 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:261
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:298
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:311
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
RIP: 0010:sock_owned_by_me include/net/sock.h:1505 [inline]
RIP: 0010:sock_owned_by_user include/net/sock.h:1511 [inline]
RIP: 0010:strp_data_ready+0x2b7/0x390 net/strparser/strparser.c:404
RSP: 0018:ffff8801d2a3f7d8 EFLAGS: 00010297
RAX: ffff8801d233e440 RBX: ffff8801cfa58c48 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801d1cf00e0 RDI: ffffffff85cbee20
RBP: ffff8801d2a3f7f8 R08: 0000000000000002 R09: 1ffffffff0ce0bca
R10: ffff8801d2a3f6c0 R11: 1ffff1003a467ee3 R12: ffff8801d1cf0040
R13: ffff8801cfa58c50 R14: ffff8801d2a3f960 R15: ffff8801d1cf0040
 psock_data_ready+0x56/0x70 net/kcm/kcmsock.c:353
 unix_dgram_sendmsg+0xa72/0x1600 net/unix/af_unix.c:1808
 unix_seqpacket_sendmsg+0xf3/0x160 net/unix/af_unix.c:2062
 sock_sendmsg_nosec net/socket.c:633 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:643
 ___sys_sendmsg+0x31c/0x890 net/socket.c:2049
 __sys_sendmmsg+0x1e6/0x5f0 net/socket.c:2139
 SYSC_sendmmsg net/socket.c:2170 [inline]
 SyS_sendmmsg+0x35/0x60 net/socket.c:2165
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x43fe69
RSP: 002b:00007ffff8ce14a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe69
RDX: 0000000000000001 RSI: 0000000020e83fc4 RDI: 0000000000000004
RBP: 0000000000000082 R08: 00000000004017d0 R09: 00000000004017d0
R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004017d0
R13: 0000000000401860 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..