From e794fa5cb5b2a2ebffa4a535da4d951f6a4b559a Mon Sep 17 00:00:00 2001 From: akr Date: Tue, 13 Oct 2015 13:49:58 +0000 Subject: * ext/socket/raddrinfo.c (rsock_fd_family): Check sa_len. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52119 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/socket/raddrinfo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'ext') diff --git a/ext/socket/raddrinfo.c b/ext/socket/raddrinfo.c index b42707454a..5bdde2584a 100644 --- a/ext/socket/raddrinfo.c +++ b/ext/socket/raddrinfo.c @@ -524,7 +524,8 @@ rsock_fd_family(int fd) struct sockaddr sa = { 0 }; socklen_t sa_len = sizeof(sa); - if (fd < 0 || getsockname(fd, &sa, &sa_len) != 0) { + if (fd < 0 || getsockname(fd, &sa, &sa_len) != 0 || + sa_len < offsetof(struct sockaddr, sa_family) + sizeof(sa.sa_family)) { return AF_UNSPEC; } return sa.sa_family; -- cgit v1.2.3