WARNING: CPU: 1 PID: 3179 at ./include/net/sock.h:1510 sock_owned_by_me include/net/sock.h:1510 [inline]
WARNING: CPU: 1 PID: 3179 at ./include/net/sock.h:1510 sock_owned_by_user include/net/sock.h:1516 [inline]
WARNING: CPU: 1 PID: 3179 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: 1 PID: 3179 Comm: syzkaller461551 Not tainted 4.15.0-rc4-mm1+ #49
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:ffff8801c9a37800 EFLAGS: 00010293
RAX: ffff8801c9962180 RBX: ffff8801c820f0c8 RCX: ffffffff84bbe257
RDX: 0000000000000000 RSI: ffff8801ca79e7a0 RDI: ffffffff866e5920
RBP: ffff8801c9a37820 R08: 1ffff10039346e45 R09: 1ffffffff0e2c3c6
R10: ffff8801c9a376e8 R11: ffffed0039346e30 R12: ffff8801ca79e700
R13: ffff8801c820f0d0 R14: ffff8801c9a37988 R15: ffff8801ca79e700
 psock_data_ready+0x56/0x70 net/kcm/kcmsock.c:353
 unix_dgram_sendmsg+0xa72/0x1600 net/unix/af_unix.c:1809
 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]
 do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:653
 do_iter_write+0x154/0x540 fs/read_write.c:932
 vfs_writev+0x18a/0x340 fs/read_write.c:977
 do_writev+0xfc/0x2a0 fs/read_write.c:1012
 SYSC_writev fs/read_write.c:1085 [inline]
 SyS_writev+0x27/0x30 fs/read_write.c:1082
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x445ec9
RSP: 002b:00007f95b7564db8 EFLAGS: 00000297 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00000000006dbc54 RCX: 0000000000445ec9
RDX: 0000000000000001 RSI: 0000000020d33000 RDI: 0000000000000014
RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000
R13: 00007ffd519a4ccf R14: 00007f95b75659c0 R15: 0000000000000006
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..