From 68c7bfc20d24ec36acda265cb27db757df1078e9 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Mon, 8 Apr 2024 16:33:44 +0200
Subject: [PATCH] sys/suit: return error when URL buffer is too small

---
 sys/suit/handlers_command_seq.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/suit/handlers_command_seq.c b/sys/suit/handlers_command_seq.c
index ab63409956b6..d03a266043c1 100644
--- a/sys/suit/handlers_command_seq.c
+++ b/sys/suit/handlers_command_seq.c
@@ -424,7 +424,10 @@ static int _dtv_fetch(suit_manifest_t *manifest, int key,
         return err;
     }
 
-    assert(manifest->urlbuf && url_len < manifest->urlbuf_len);
+    if (!manifest->urlbuf || url_len >= manifest->urlbuf_len) {
+        assert(0);
+        return SUIT_ERR_NO_MEM;
+    }
     memcpy(manifest->urlbuf, url, url_len);
     manifest->urlbuf[url_len] = '\0';