X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=net%2Fcore%2Fscm.c;h=b88f6f9d0b97503ddd353e163e73680704cde79a;hb=5a0e3ad6af8660be21ca98a971cd00f331318c05;hp=b7ba91b074b33995deee5278fb54c30d100d041b;hpb=22b61a11fd4e6d7a48d694ce350331bebc0394ed;p=firefly-linux-kernel-4.4.55.git

diff --git a/net/core/scm.c b/net/core/scm.c
index b7ba91b074b3..b88f6f9d0b97 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -26,6 +26,7 @@
 #include <linux/security.h>
 #include <linux/pid.h>
 #include <linux/nsproxy.h>
+#include <linux/slab.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -156,6 +157,8 @@ int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *p)
 		switch (cmsg->cmsg_type)
 		{
 		case SCM_RIGHTS:
+			if (!sock->ops || sock->ops->family != PF_UNIX)
+				goto error;
 			err=scm_fp_copy(cmsg, &p->fp);
 			if (err<0)
 				goto error;