From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 18 Sep 2025 09:00:47 +0000 (+0200)
Subject: conf: fix parse_array_def override code path
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;p=alsa-lib.git

conf: fix parse_array_def override code path

The error may cause segmentation fault and incorrect behaviour.

Closes: https://github.com/alsa-project/alsa-lib/issues/477
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/src/conf.c b/src/conf.c
index 905c8f4d..a48e0db0 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -1268,13 +1268,13 @@ static int parse_array_def(snd_config_t *parent, input_t *input, int *idx, int s
 	snd_config_t *n = NULL;
 
 	if (!skip) {
-		snd_config_t *g;
 		char static_id[12];
 		while (1) {
 			snprintf(static_id, sizeof(static_id), "%i", *idx);
-			if (_snd_config_search(parent, static_id, -1, &g) == 0) {
+			if (_snd_config_search(parent, static_id, -1, &n) == 0) {
 				if (override) {
 					snd_config_delete(n);
+					n = NULL;
 				} else {
 					/* merge */
 					(*idx)++;