Author: gnn
Date: Sat Aug 3 14:42:07 2019
New Revision: 350557
URL: https://svnweb.freebsd.org/changeset/base/350557
Log:
Properly validte arguments for route deletion
Reported by: Liang Zhuo brightiup.z...@gmail.com
MFC after: 1 week
Modified:
head/sys/net/route.c
Modified: head/sys/net/route.c
==============================================================================
--- head/sys/net/route.c Sat Aug 3 13:53:14 2019 (r350556)
+++ head/sys/net/route.c Sat Aug 3 14:42:07 2019 (r350557)
@@ -1590,6 +1590,8 @@ rtrequest1_fib(int req, struct rt_addrinfo *info, stru
switch (req) {
case RTM_DELETE:
if (netmask) {
+ if (dst->sa_len > sizeof(mdst))
+ return (EINVAL);
rt_maskedcopy(dst, (struct sockaddr *)&mdst, netmask);
dst = (struct sockaddr *)&mdst;
}
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