Thread (47 messages) 47 messages, 5 authors, 2021-03-21

[PATCH v3 6/9] init-db: silence template_dir leak when converting to absolute path

flat view
DORMANTno replies

From: Andrzej Hunt via GitGitGadget <hidden>
Date: 2021-03-21 16:59:58
Subsystem: the rest · Maintainer: Linus Torvalds

From: Andrzej Hunt <redacted>

template_dir starts off pointing to either argv or nothing. However if
the value supplied in argv is a relative path, absolute_pathdup() is
used to turn it into an absolute path. absolute_pathdup() allocates
a new string, and we then "leak" it when cmd_init_db() completes.

We don't bother to actually free the return value (instead we UNLEAK
it), because there's no significant advantage to doing so here.
Correctly freeing it would require more significant changes to code flow
which would be more noisy than beneficial.

Signed-off-by: Andrzej Hunt <redacted>
---
 builtin/init-db.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/builtin/init-db.c b/builtin/init-db.c
index d31dbc883746..efc66523e22c 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -561,8 +561,10 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
 	if (real_git_dir && !is_absolute_path(real_git_dir))
 		real_git_dir = real_pathdup(real_git_dir, 1);
 
-	if (template_dir && *template_dir && !is_absolute_path(template_dir))
+	if (template_dir && *template_dir && !is_absolute_path(template_dir)) {
 		template_dir = absolute_pathdup(template_dir);
+		UNLEAK(template_dir);
+	}
 
 	if (argc == 1) {
 		int mkdir_tried = 0;
-- 
gitgitgadget
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help