should_failslab+0x9/0x14 mm/slab_common.c:1522
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc_node mm/slab.c:3299 [inline]
 kmem_cache_alloc_node+0x272/0x780 mm/slab.c:3642
 __alloc_skb+0x111/0x780 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:987 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1182 [inline]
 netlink_sendmsg+0xb01/0xfa0 net/netlink/af_netlink.c:1876
WARNING: CPU: 0 PID: 18617 at net/ipv4/tcp_input.c:2193 tcp_mark_head_lost+0x8ee/0xa70 net/ipv4/tcp_input.c:2193
Kernel panic - not syncing: panic_on_warn set ...

 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:639
 ___sys_sendmsg+0x805/0x940 net/socket.c:2117
 __sys_sendmsg+0x115/0x270 net/socket.c:2155
 __do_sys_sendmsg net/socket.c:2164 [inline]
 __se_sys_sendmsg net/socket.c:2162 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455389
RSP: 002b:00007fea8a30fc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fea8a3106d4 RCX: 0000000000455389
RDX: 0000000000000000 RSI: 0000000020b3dfc8 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000000004f8 R14: 00000000006fa7e0 R15: 0000000000000000
CPU: 0 PID: 18617 Comm: syz-executor2 Not tainted 4.17.0-rc1+ #15
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:tcp_mark_head_lost+0x8ee/0xa70 net/ipv4/tcp_input.c:2193
RSP: 0018:ffff880196bdf4d8 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 0000000000000005 RCX: ffffc900026c4000
RDX: 0000000000001207 RSI: ffffffff864a3ffe RDI: 0000000000000004
RBP: ffff880196bdf560 R08: ffff8801b103e740 R09: ffff880196bdf910
R10: 000000000ed5d553 R11: ffff88021fff8017 R12: 0000000000000004
R13: ffff8801b422c000 R14: dffffc0000000000 R15: 0000000000000001
 tcp_update_scoreboard net/ipv4/tcp_input.c:2207 [inline]
 tcp_fastretrans_alert+0x1ff8/0x2850 net/ipv4/tcp_input.c:2847
 tcp_ack+0x2c48/0x5510 net/ipv4/tcp_input.c:3633
 tcp_rcv_state_process+0xc60/0x5002 net/ipv4/tcp_input.c:5916
 tcp_v4_do_rcv+0x365/0x8c0 net/ipv4/tcp_ipv4.c:1499
 sk_backlog_rcv include/net/sock.h:909 [inline]
 __release_sock+0x12f/0x3a0 net/core/sock.c:2338
 release_sock+0xa4/0x2b0 net/core/sock.c:2853
 inet_shutdown+0x1f7/0x3d0 net/ipv4/af_inet.c:889
 __sys_shutdown+0x154/0x2b0 net/socket.c:1967
 __do_sys_shutdown net/socket.c:1975 [inline]
 __se_sys_shutdown net/socket.c:1973 [inline]
 __x64_sys_shutdown+0x54/0x80 net/socket.c:1973
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455389
RSP: 002b:00007fd9557f0c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000030
RAX: ffffffffffffffda RBX: 00007fd9557f16d4 RCX: 0000000000455389
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000611 R14: 00000000006fc238 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..