Merge branch 'free-strdup-memory-in-selftests'

Geliang Tang says:

====================
Free strdup memory in selftests

From: Geliang Tang <tanggeliang@kylinos.cn>

Two fixes to free strdup memory in selftests to avoid memory leaks.
====================

Link: https://lore.kernel.org/r/cover.1714374022.git.tanggeliang@kylinos.cnSigned-off-by: Andrii Nakryiko <andrii@kernel.org>

tools/testing/selftests/bpf/test_sockmap.c

@@ -1887,10 +1887,13 @@ static int check_whitelist(struct _test *t, struct sockmap_options *opt)
 	while (entry) {
 		if ((opt->prepend && strstr(opt->prepend, entry) != 0) ||
 		    strstr(opt->map, entry) != 0 ||
-		    strstr(t->title, entry) != 0)
+		    strstr(t->title, entry) != 0) {
+			free(ptr);
 			return 0;
+		}
 		entry = strtok(NULL, ",");
 	}
+	free(ptr);
 	return -EINVAL;
 }
 
@@ -1907,10 +1910,13 @@ static int check_blacklist(struct _test *t, struct sockmap_options *opt)
 	while (entry) {
 		if ((opt->prepend && strstr(opt->prepend, entry) != 0) ||
 		    strstr(opt->map, entry) != 0 ||
-		    strstr(t->title, entry) != 0)
+		    strstr(t->title, entry) != 0) {
+			free(ptr);
 			return 0;
+		}
 		entry = strtok(NULL, ",");
 	}
+	free(ptr);
 	return -EINVAL;
 }
 

tools/testing/selftests/bpf/veristat.c

@@ -792,10 +792,13 @@ static int parse_stats(const char *stats_str, struct stat_specs *specs)
 
 	while ((next = strtok_r(state ? NULL : input, ",", &state))) {
 		err = parse_stat(next, specs);
-		if (err)
+		if (err) {
+			free(input);
 			return err;
 		}
+	}
 
+	free(input);
 	return 0;
 }