Merge branch 'ps/leakfixes-part-9'

More leakfixes.

* ps/leakfixes-part-9: (22 commits)
  list-objects-filter-options: work around reported leak on error
  builtin/merge: release output buffer after performing merge
  dir: fix leak when parsing "status.showUntrackedFiles"
  t/helper: fix leaking buffer in "dump-untracked-cache"
  t/helper: stop re-initialization of `the_repository`
  sparse-index: correctly free EWAH contents
  dir: release untracked cache data
  combine-diff: fix leaking lost lines
  builtin/tag: fix leaking key ID on failure to sign
  transport-helper: fix leaking import/export marks
  builtin/commit: fix leaking cleanup config
  trailer: fix leaking strbufs when formatting trailers
  trailer: fix leaking trailer values
  builtin/commit: fix leaking change data contents
  upload-pack: fix leaking URI protocols
  pretty: clear signature check
  diff-lib: fix leaking diffopts in `do_diff_cache()`
  revision: fix leaking bloom filters
  builtin/grep: fix leak with `--max-count=0`
  grep: fix leak in `grep_splice_or()`
  ...

builtin/commit.c

@@ -135,7 +135,7 @@ static struct strvec trailer_args = STRVEC_INIT;
  * is specified explicitly.
  */
 static enum commit_msg_cleanup_mode cleanup_mode;
-static char *cleanup_arg;
+static char *cleanup_config;
 
 static enum commit_whence whence;
 static int use_editor = 1, include_status = 1;
@@ -728,6 +728,13 @@ static void prepare_amend_commit(struct commit *commit, struct strbuf *sb,
 	repo_unuse_commit_buffer(the_repository, commit, buffer);
 }
 
+static void change_data_free(void *util, const char *str UNUSED)
+{
+	struct wt_status_change_data *d = util;
+	free(d->rename_source);
+	free(d);
+}
+
 static int prepare_to_commit(const char *index_file, const char *prefix,
 			     struct commit *current_head,
 			     struct wt_status *s,
@@ -991,7 +998,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 		s->use_color = 0;
 		committable = run_status(s->fp, index_file, prefix, 1, s);
 		s->use_color = saved_color_setting;
-		string_list_clear(&s->change, 1);
+		string_list_clear_func(&s->change, change_data_free);
 	} else {
 		struct object_id oid;
 		const char *parent = "HEAD";
@@ -1380,8 +1387,6 @@ static int parse_and_validate_options(int argc, const char *argv[],
 	if (0 <= edit_flag)
 		use_editor = edit_flag;
 
-	cleanup_mode = get_cleanup_mode(cleanup_arg, use_editor);
-
 	handle_untracked_files_arg(s);
 
 	if (all && argc > 0)
@@ -1629,8 +1634,10 @@ static int git_commit_config(const char *k, const char *v,
 		include_status = git_config_bool(k, v);
 		return 0;
 	}
-	if (!strcmp(k, "commit.cleanup"))
+	if (!strcmp(k, "commit.cleanup")) {
-		return git_config_string(&cleanup_arg, k, v);
+		FREE_AND_NULL(cleanup_config);
+		return git_config_string(&cleanup_config, k, v);
+	}
 	if (!strcmp(k, "commit.gpgsign")) {
 		sign_commit = git_config_bool(k, v) ? "" : NULL;
 		return 0;
@@ -1651,6 +1658,7 @@ int cmd_commit(int argc,
 	       struct repository *repo UNUSED)
 {
 	static struct wt_status s;
+	static const char *cleanup_arg = NULL;
 	static struct option builtin_commit_options[] = {
 		OPT__QUIET(&quiet, N_("suppress summary after successful commit")),
 		OPT__VERBOSE(&verbose, N_("show diff in commit message template")),
@@ -1750,6 +1758,12 @@ int cmd_commit(int argc,
 	if (verbose == -1)
 		verbose = (config_commit_verbose < 0) ? 0 : config_commit_verbose;
 
+	if (cleanup_arg) {
+		free(cleanup_config);
+		cleanup_config = xstrdup(cleanup_arg);
+	}
+	cleanup_mode = get_cleanup_mode(cleanup_config, use_editor);
+
 	if (dry_run)
 		return dry_run_commit(argv, prefix, current_head, &s);
 	index_file = prepare_index(argv, prefix, current_head, 0);

builtin/grep.c

@@ -906,6 +906,7 @@ int cmd_grep(int argc,
 	int dummy;
 	int use_index = 1;
 	int allow_revs;
+	int ret;
 
 	struct option options[] = {
 		OPT_BOOL(0, "cached", &cached,
@@ -1172,8 +1173,10 @@ int cmd_grep(int argc,
 	 * Optimize out the case where the amount of matches is limited to zero.
 	 * We do this to keep results consistent with GNU grep(1).
 	 */
-	if (opt.max_count == 0)
+	if (opt.max_count == 0) {
-		return 1;
+		ret = 1;
+		goto out;
+	}
 
 	if (show_in_pager) {
 		if (num_threads > 1)
@@ -1267,10 +1270,14 @@ int cmd_grep(int argc,
 		hit |= wait_all();
 	if (hit && show_in_pager)
 		run_pager(&opt, prefix);
+
+	ret = !hit;
+
+out:
 	clear_pathspec(&pathspec);
 	string_list_clear(&path_list, 0);
 	free_grep_patterns(&opt);
 	object_array_clear(&list);
 	free_repos();
-	return !hit;
+	return ret;
 }

builtin/ls-remote.c

@@ -166,6 +166,7 @@ int cmd_ls_remote(int argc,
 		status = 0; /* we found something */
 	}
 
+	string_list_clear(&server_options, 0);
 	ref_sorting_release(sorting);
 	ref_array_clear(&ref_array);
 	if (transport_disconnect(transport))

builtin/merge.c

@@ -754,6 +754,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
 			clean = merge_recursive(&o, head, remoteheads->item,
 						reversed, &result);
 		free_commit_list(reversed);
+		strbuf_release(&o.obuf);
 
 		if (clean < 0) {
 			rollback_lock_file(&lock);

builtin/tag.c

@@ -164,7 +164,7 @@ static int do_sign(struct strbuf *buffer, struct object_id **compat_oid,
 	int ret = -1;
 
 	if (sign_buffer(buffer, &sig, keyid))
-		return -1;
+		goto out;
 
 	if (compat) {
 		const struct git_hash_algo *algo = the_repository->hash_algo;

combine-diff.c

@@ -1185,7 +1185,8 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
 	result_file.ptr = result;
 	result_file.size = result_size;
 
-	/* Even p_lno[cnt+1] is valid -- that is for the end line number
+	/*
+	 * Even p_lno[cnt+1] is valid -- that is for the end line number
 	 * for deletion hunk at the end.
 	 */
 	CALLOC_ARRAY(sline[0].p_lno, st_mult(st_add(cnt, 2), num_parent));
@@ -1220,7 +1221,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
 	}
 	free(result);
 
-	for (lno = 0; lno < cnt; lno++) {
+	for (lno = 0; lno < cnt + 2; lno++) {
 		if (sline[lno].lost) {
 			struct lline *ll = sline[lno].lost;
 			while (ll) {

diff-lib.c

@@ -661,6 +661,7 @@ int do_diff_cache(const struct object_id *tree_oid, struct diff_options *opt)
 
 	repo_init_revisions(opt->repo, &revs, NULL);
 	copy_pathspec(&revs.prune_data, &opt->pathspec);
+	diff_free(&revs.diffopt);
 	revs.diffopt = *opt;
 	revs.diffopt.no_free = 1;
 

dir.c

@@ -1056,6 +1056,8 @@ static void do_invalidate_gitignore(struct untracked_cache_dir *dir)
 {
 	int i;
 	dir->valid = 0;
+	for (size_t i = 0; i < dir->untracked_nr; i++)
+		free(dir->untracked[i]);
 	dir->untracked_nr = 0;
 	for (i = 0; i < dir->dirs_nr; i++)
 		do_invalidate_gitignore(dir->dirs[i]);
@@ -1083,6 +1085,8 @@ static void invalidate_directory(struct untracked_cache *uc,
 		uc->dir_invalidated++;
 
 	dir->valid = 0;
+	for (size_t i = 0; i < dir->untracked_nr; i++)
+		free(dir->untracked[i]);
 	dir->untracked_nr = 0;
 	for (i = 0; i < dir->dirs_nr; i++)
 		dir->dirs[i]->recurse = 0;
@@ -2868,14 +2872,14 @@ static void set_untracked_ident(struct untracked_cache *uc)
 static unsigned new_untracked_cache_flags(struct index_state *istate)
 {
 	struct repository *repo = istate->repo;
-	char *val;
+	const char *val;
 
 	/*
 	 * This logic is coordinated with the setting of these flags in
 	 * wt-status.c#wt_status_collect_untracked(), and the evaluation
 	 * of the config setting in commit.c#git_status_config()
 	 */
-	if (!repo_config_get_string(repo, "status.showuntrackedfiles", &val) &&
+	if (!repo_config_get_string_tmp(repo, "status.showuntrackedfiles", &val) &&
 	    !strcmp(val, "all"))
 		return 0;
 
@@ -3573,6 +3577,8 @@ static void write_one_dir(struct untracked_cache_dir *untracked,
 	 * for safety..
 	 */
 	if (!untracked->valid) {
+		for (size_t i = 0; i < untracked->untracked_nr; i++)
+			free(untracked->untracked[i]);
 		untracked->untracked_nr = 0;
 		untracked->check_only = 0;
 	}
@@ -3905,6 +3911,8 @@ static void invalidate_one_directory(struct untracked_cache *uc,
 {
 	uc->dir_invalidated++;
 	ucd->valid = 0;
+	for (size_t i = 0; i < ucd->untracked_nr; i++)
+		free(ucd->untracked[i]);
 	ucd->untracked_nr = 0;
 }
 

grep.c

@@ -756,6 +756,7 @@ static struct grep_expr *grep_splice_or(struct grep_expr *x, struct grep_expr *y
 		assert(x->node == GREP_NODE_OR);
 		if (x->u.binary.right &&
 		    x->u.binary.right->node == GREP_NODE_TRUE) {
+			free(x->u.binary.right);
 			x->u.binary.right = y;
 			break;
 		}

list-objects-filter-options.c

@@ -252,16 +252,14 @@ void parse_list_objects_filter(
 	const char *arg)
 {
 	struct strbuf errbuf = STRBUF_INIT;
-	int parse_error;
 
 	if (!filter_options->filter_spec.buf)
 		BUG("filter_options not properly initialized");
 
 	if (!filter_options->choice) {
+		if (gently_parse_list_objects_filter(filter_options, arg, &errbuf))
+			die("%s", errbuf.buf);
 		strbuf_addstr(&filter_options->filter_spec, arg);
-
-		parse_error = gently_parse_list_objects_filter(
-			filter_options, arg, &errbuf);
 	} else {
 		struct list_objects_filter_options *sub;
 
@@ -271,18 +269,17 @@ void parse_list_objects_filter(
 		 */
 		transform_to_combine_type(filter_options);
 
-		strbuf_addch(&filter_options->filter_spec, '+');
-		filter_spec_append_urlencode(filter_options, arg);
 		ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
 			      filter_options->sub_alloc);
 		sub = &filter_options->sub[filter_options->sub_nr - 1];
 
 		list_objects_filter_init(sub);
-		parse_error = gently_parse_list_objects_filter(sub, arg,
+		if (gently_parse_list_objects_filter(sub, arg, &errbuf))
-							       &errbuf);
+			die("%s", errbuf.buf);
+
+		strbuf_addch(&filter_options->filter_spec, '+');
+		filter_spec_append_urlencode(filter_options, arg);
 	}
-	if (parse_error)
-		die("%s", errbuf.buf);
 }
 
 int opt_parse_list_objects_filter(const struct option *opt,

pretty.c

@@ -2032,6 +2032,7 @@ void repo_format_commit_message(struct repository *r,
 
 	free(context.commit_encoding);
 	repo_unuse_commit_buffer(r, commit, context.message);
+	signature_check_clear(&context.signature_check);
 }
 
 static void pp_header(struct pretty_print_context *pp,

revision.c

@@ -3227,6 +3227,11 @@ void release_revisions(struct rev_info *revs)
 	clear_decoration(&revs->treesame, free);
 	line_log_free(revs);
 	oidset_clear(&revs->missing_commits);
+
+	for (int i = 0; i < revs->bloom_keys_nr; i++)
+		clear_bloom_key(&revs->bloom_keys[i]);
+	FREE_AND_NULL(revs->bloom_keys);
+	revs->bloom_keys_nr = 0;
 }
 
 static void add_child(struct rev_info *revs, struct commit *parent, struct commit *child)

sparse-index.c

@@ -2,6 +2,7 @@
 
 #include "git-compat-util.h"
 #include "environment.h"
+#include "ewah/ewok.h"
 #include "gettext.h"
 #include "name-hash.h"
 #include "read-cache-ll.h"
@@ -242,7 +243,8 @@ int convert_to_sparse(struct index_state *istate, int flags)
 	cache_tree_update(istate, 0);
 
 	istate->fsmonitor_has_run_once = 0;
-	FREE_AND_NULL(istate->fsmonitor_dirty);
+	ewah_free(istate->fsmonitor_dirty);
+	istate->fsmonitor_dirty = NULL;
 	FREE_AND_NULL(istate->fsmonitor_last_update);
 
 	istate->sparse_index = INDEX_COLLAPSED;
@@ -438,7 +440,8 @@ void expand_index(struct index_state *istate, struct pattern_list *pl)
 	istate->cache_nr = full->cache_nr;
 	istate->cache_alloc = full->cache_alloc;
 	istate->fsmonitor_has_run_once = 0;
-	FREE_AND_NULL(istate->fsmonitor_dirty);
+	ewah_free(istate->fsmonitor_dirty);
+	istate->fsmonitor_dirty = NULL;
 	FREE_AND_NULL(istate->fsmonitor_last_update);
 
 	strbuf_release(&base);

t/helper/test-dump-untracked-cache.c

@@ -68,5 +68,7 @@ int cmd__dump_untracked_cache(int ac UNUSED, const char **av UNUSED)
 	printf("flags %08x\n", uc->dir_flags);
 	if (uc->root)
 		dump(uc->root, &base);
+
+	strbuf_release(&base);
 	return 0;
 }

t/helper/test-reach.c

@@ -127,10 +127,12 @@ int cmd__reach(int ac, const char **av)
 			exit(128);
 		printf("%s(A,X):\n", av[1]);
 		print_sorted_commit_ids(list);
+		free_commit_list(list);
 	} else if (!strcmp(av[1], "reduce_heads")) {
 		struct commit_list *list = reduce_heads(X);
 		printf("%s(X):\n", av[1]);
 		print_sorted_commit_ids(list);
+		free_commit_list(list);
 	} else if (!strcmp(av[1], "can_all_from_reach")) {
 		printf("%s(X,Y):%d\n", av[1], can_all_from_reach(X, Y, 1));
 	} else if (!strcmp(av[1], "can_all_from_reach_with_flag")) {
@@ -153,6 +155,7 @@ int cmd__reach(int ac, const char **av)
 			filter.with_commit_tag_algo = 0;
 
 		printf("%s(_,A,X,_):%d\n", av[1], commit_contains(&filter, A, X, &cache));
+		clear_contains_cache(&cache);
 	} else if (!strcmp(av[1], "get_reachable_subset")) {
 		const int reachable_flag = 1;
 		int i, count = 0;
@@ -176,7 +179,14 @@ int cmd__reach(int ac, const char **av)
 			die(_("too many commits marked reachable"));
 
 		print_sorted_commit_ids(list);
+		free_commit_list(list);
 	}
 
+	object_array_clear(&X_obj);
+	strbuf_release(&buf);
+	free_commit_list(X);
+	free_commit_list(Y);
+	free(X_array);
+	free(Y_array);
 	return 0;
 }

t/helper/test-read-cache.c

@@ -11,8 +11,6 @@ int cmd__read_cache(int argc, const char **argv)
 	int i, cnt = 1;
 	const char *name = NULL;
 
-	initialize_repository(the_repository);
-
 	if (argc > 1 && skip_prefix(argv[1], "--print-and-refresh=", &name)) {
 		argc--;
 		argv++;

t/t4038-diff-combined.sh

@@ -5,6 +5,7 @@ test_description='combined diff'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-diff.sh
 

t/t4202-log.sh

@@ -5,6 +5,7 @@ test_description='git log'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY/lib-gpg.sh"
 . "$TEST_DIRECTORY/lib-terminal.sh"

t/t4216-log-bloom.sh

@@ -4,6 +4,7 @@ test_description='git log for a path with Bloom filters'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-chunk.sh
 

t/t5702-protocol-v2.sh

@@ -7,6 +7,7 @@ TEST_NO_CREATE_REPO=1
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Test protocol v2 with 'git://' transport

t/t5801-remote-helpers.sh

@@ -8,6 +8,7 @@ test_description='Test remote-helper import and export commands'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-gpg.sh
 

t/t6112-rev-list-filters-objects.sh

@@ -5,6 +5,7 @@ test_description='git rev-list using object filtering'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Test the blob:none filter.

t/t6424-merge-unrelated-index-changes.sh

@@ -2,6 +2,7 @@
 
 test_description="merges with unrelated index changes"
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Testcase for some simple merges

t/t6600-test-reach.sh

@@ -2,6 +2,7 @@
 
 test_description='basic commit reachability tests'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Construct a grid-like commit graph with points (x,y)

t/t7004-tag.sh

@@ -10,6 +10,7 @@ Tests for operations with tags.'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-gpg.sh
 . "$TEST_DIRECTORY"/lib-terminal.sh

t/t7031-verify-tag-signed-ssh.sh

@@ -4,6 +4,7 @@ test_description='signed tag tests'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY/lib-gpg.sh"
 

t/t7063-status-untracked-cache.sh

@@ -5,6 +5,7 @@ test_description='test untracked cache'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # On some filesystems (e.g. FreeBSD's ext2 and ufs) directory mtime

t/t7500-commit-template-squash-signoff.sh

@@ -7,6 +7,7 @@ test_description='git commit
 
 Tests for template, signoff, squash and -F functions.'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 . "$TEST_DIRECTORY"/lib-rebase.sh

t/t7502-commit-porcelain.sh

@@ -5,6 +5,7 @@ test_description='git commit porcelain-ish'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 commit_msg_is () {

t/t7510-signed-commit.sh

@@ -4,6 +4,7 @@ test_description='signed commit tests'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 GNUPGHOME_NOT_USED=$GNUPGHOME
 . "$TEST_DIRECTORY/lib-gpg.sh"

t/t7513-interpret-trailers.sh

@@ -5,6 +5,7 @@
 
 test_description='git interpret-trailers'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # When we want one trailing space at the end of each line, let's use sed

t/t7519-status-fsmonitor.sh

@@ -2,6 +2,7 @@
 
 test_description='git status with file system watcher'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Note, after "git reset --hard HEAD" no extensions exist other than 'TREE'

t/t7528-signed-commit-ssh.sh

@@ -4,6 +4,7 @@ test_description='ssh signed commit tests'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 GNUPGHOME_NOT_USED=$GNUPGHOME
 . "$TEST_DIRECTORY/lib-gpg.sh"

t/t7610-mergetool.sh

@@ -10,6 +10,7 @@ Testing basic merge tool invocation'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # All the mergetool test work by checking out a temporary branch based

t/t7810-grep.sh

@@ -9,6 +9,7 @@ test_description='git grep various.
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_invalid_grep_expression() {

trailer.c

@@ -249,7 +249,9 @@ static char *apply_command(struct conf_info *conf, const char *arg)
 static void apply_item_command(struct trailer_item *in_tok, struct arg_item *arg_tok)
 {
 	if (arg_tok->conf.command || arg_tok->conf.cmd) {
-		const char *arg;
+		char *value_to_free = NULL;
+		char *arg;
+
 		if (arg_tok->value && arg_tok->value[0]) {
 			arg = arg_tok->value;
 		} else {
@@ -257,9 +259,13 @@ static void apply_item_command(struct trailer_item *in_tok, struct arg_item *arg
 				arg = xstrdup(in_tok->value);
 			else
 				arg = xstrdup("");
+			value_to_free = arg_tok->value;
 		}
+
 		arg_tok->value = apply_command(&arg_tok->conf, arg);
-		free((char *)arg);
+
+		free(value_to_free);
+		free(arg);
 	}
 }
 
@@ -1105,6 +1111,8 @@ void format_trailers(const struct process_trailer_options *opts,
 		     struct list_head *trailers,
 		     struct strbuf *out)
 {
+	struct strbuf tok = STRBUF_INIT;
+	struct strbuf val = STRBUF_INIT;
 	size_t origlen = out->len;
 	struct list_head *pos;
 	struct trailer_item *item;
@@ -1112,9 +1120,9 @@ void format_trailers(const struct process_trailer_options *opts,
 	list_for_each(pos, trailers) {
 		item = list_entry(pos, struct trailer_item, list);
 		if (item->token) {
-			struct strbuf tok = STRBUF_INIT;
+			strbuf_reset(&tok);
-			struct strbuf val = STRBUF_INIT;
 			strbuf_addstr(&tok, item->token);
+			strbuf_reset(&val);
 			strbuf_addstr(&val, item->value);
 
 			/*
@@ -1145,9 +1153,6 @@ void format_trailers(const struct process_trailer_options *opts,
 				if (!opts->separator)
 					strbuf_addch(out, '\n');
 			}
-			strbuf_release(&tok);
-			strbuf_release(&val);
-
 		} else if (!opts->only_trailers) {
 			if (opts->separator && out->len != origlen) {
 				strbuf_addbuf(out, opts->separator);
@@ -1159,6 +1164,9 @@ void format_trailers(const struct process_trailer_options *opts,
 				strbuf_addch(out, '\n');
 		}
 	}
+
+	strbuf_release(&tok);
+	strbuf_release(&val);
 }
 
 void format_trailers_from_commit(const struct process_trailer_options *opts,

transport-helper.c

@@ -399,6 +399,8 @@ static int release_helper(struct transport *transport)
 	int res = 0;
 	struct helper_data *data = transport->data;
 	refspec_clear(&data->rs);
+	free(data->import_marks);
+	free(data->export_marks);
 	res = disconnect_helper(transport);
 	free(transport->data);
 	return res;

upload-pack.c

@@ -166,6 +166,7 @@ static void upload_pack_data_clear(struct upload_pack_data *data)
 	object_array_clear(&data->extra_edge_obj);
 	list_objects_filter_release(&data->filter_options);
 	string_list_clear(&data->allowed_filters, 0);
+	string_list_clear(&data->uri_protocols, 0);
 
 	free((char *)data->pack_objects_hook);
 }