submodule--helper: fix "sm_path" and other "module_cb_list" leaks
Fix leaks in "struct module_cb_list" and the "struct module_cb" which it contains, these fix leaks in e83e3333b57 (submodule: port submodule subcommand 'summary' from shell to C, 2020-08-13). The "sm_path" should always have been a "char *", not a "const char *", we always create it with xstrdup(). We can't mark any tests passing passing with SANITIZE=leak using "TEST_PASSES_SANITIZE_LEAK=true" as a result of this change, but "t7401-submodule-summary.sh" gets closer to passing as a result of this change. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Reviewed-by: Glen Choo <chooglen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ævar Arnfjörð Bjarmason committed
Sep 1, 2022 at 01:14 UTC
980416e469ad2ed0d38630cf4c25390ae9731416
2 files changed
+21
-1
builtin/submodule--helper.c
+20
-1
index c95098e621..3453faabd3 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -748,16 +748,34 @@ struct module_cb {
struct object_id oid_src;
struct object_id oid_dst;
char status;
- const char *sm_path;
+ char *sm_path;
};
#define MODULE_CB_INIT { 0 }
+static void module_cb_release(struct module_cb *mcb)
+{
+ free(mcb->sm_path);
+}
+
struct module_cb_list {
struct module_cb **entries;
int alloc, nr;
};
#define MODULE_CB_LIST_INIT { 0 }
+static void module_cb_list_release(struct module_cb_list *mcbl)
+{
+ int i;
+
+ for (i = 0; i < mcbl->nr; i++) {
+ struct module_cb *mcb = mcbl->entries[i];
+
+ module_cb_release(mcb);
+ free(mcb);
+ }
+ free(mcbl->entries);
+}
+
struct summary_cb {
int argc;
const char **argv;
@@ -1101,6 +1119,7 @@ static int compute_summary_module_list(struct object_id *head_oid,
cleanup:
strvec_clear(&diff_args);
release_revisions(&rev);
+ module_cb_list_release(&list);
return ret;
}
t/t7401-submodule-summary.sh
+1
index 9c3cc4cf40..542b3331a7 100755
--- a/t/t7401-submodule-summary.sh
+++ b/t/t7401-submodule-summary.sh
@@ -17,6 +17,7 @@ This test script tries to verify the sanity of summary subcommand of git submodu
# various reasons, one of them being that there are lots of commands taking place
# outside of 'test_expect_success' block, which is no longer in good-style.
+TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
add_file () {