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-rw-r--r--security/selinux/hooks.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index d37a72316e9d..e67a526d1f30 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4367,10 +4367,18 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
u32 sid, node_perm;
if (family == PF_INET) {
+ if (addrlen < sizeof(struct sockaddr_in)) {
+ err = -EINVAL;
+ goto out;
+ }
addr4 = (struct sockaddr_in *)address;
snum = ntohs(addr4->sin_port);
addrp = (char *)&addr4->sin_addr.s_addr;
} else {
+ if (addrlen < SIN6_LEN_RFC2133) {
+ err = -EINVAL;
+ goto out;
+ }
addr6 = (struct sockaddr_in6 *)address;
snum = ntohs(addr6->sin6_port);
addrp = (char *)&addr6->sin6_addr.s6_addr;