From 0399b971d9ea0e061fb1361b448f9a8188ee2336 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@golang.org>
Date: Thu, 27 Feb 2014 14:16:47 -0800
Subject: [PATCH] syscall: add some paranoia in Linux's Accept4

Fixes #7428

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/69530044
---
 src/pkg/syscall/syscall_linux.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/pkg/syscall/syscall_linux.go b/src/pkg/syscall/syscall_linux.go
index 400fe50dde..704c4ffa6c 100644
--- a/src/pkg/syscall/syscall_linux.go
+++ b/src/pkg/syscall/syscall_linux.go
@@ -420,6 +420,9 @@ func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) {
 	if err != nil {
 		return
 	}
+	if len > SizeofSockaddrAny {
+		panic("RawSockaddrAny too small")
+	}
 	sa, err = anyToSockaddr(&rsa)
 	if err != nil {
 		Close(nfd)
-- 
2.48.1