ifstat: Fix memleak in error case

Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/misc/ifstat.c b/misc/ifstat.c
index a853ee6d7e3b3fbdd0246d420e18ab35fcd7368a..8fa354265a9a1a1fb55710b47ad0117950507e16 100644 (file)
--- a/misc/ifstat.c
+++ b/misc/ifstat.c
@@ -143,8 +143,10 @@ static int get_nlmsg_extended(const struct sockaddr_nl *who,
                struct rtattr *attr;
 
                attr = parse_rtattr_one_nested(sub_type, tb[filter_type]);
-               if (attr == NULL)
+               if (attr == NULL) {
+                       free(n);
                        return 0;
+               }
                memcpy(&n->val, RTA_DATA(attr), sizeof(n->val));
        }
        memset(&n->rate, 0, sizeof(n->rate));