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Subject[PATCH AUTOSEL 5.7 130/274] selftests/bpf: Fix memory leak in test selector
Date
From: Andrii Nakryiko <andriin@fb.com>

[ Upstream commit f25d5416d64c796aa639136eb0b076c8bd579b54 ]

Free test selector substrings, which were strdup()'ed.

Fixes: b65053cd94f4 ("selftests/bpf: Add whitelist/blacklist of test names to test_progs")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200429012111.277390-6-andriin@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/bpf/test_progs.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index b521e0a512b6..86d0020c9eec 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -420,6 +420,18 @@ static int libbpf_print_fn(enum libbpf_print_level level,
return 0;
}

+static void free_str_set(const struct str_set *set)
+{
+ int i;
+
+ if (!set)
+ return;
+
+ for (i = 0; i < set->cnt; i++)
+ free((void *)set->strs[i]);
+ free(set->strs);
+}
+
static int parse_str_list(const char *s, struct str_set *set)
{
char *input, *state = NULL, *next, **tmp, **strs = NULL;
@@ -756,11 +768,11 @@ int main(int argc, char **argv)
fprintf(stdout, "Summary: %d/%d PASSED, %d SKIPPED, %d FAILED\n",
env.succ_cnt, env.sub_succ_cnt, env.skip_cnt, env.fail_cnt);

- free(env.test_selector.blacklist.strs);
- free(env.test_selector.whitelist.strs);
+ free_str_set(&env.test_selector.blacklist);
+ free_str_set(&env.test_selector.whitelist);
free(env.test_selector.num_set);
- free(env.subtest_selector.blacklist.strs);
- free(env.subtest_selector.whitelist.strs);
+ free_str_set(&env.subtest_selector.blacklist);
+ free_str_set(&env.subtest_selector.whitelist);
free(env.subtest_selector.num_set);

return env.fail_cnt ? EXIT_FAILURE : EXIT_SUCCESS;
--
2.25.1
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