From 07c3f5e51ecd16494c189c7b0af2a59156ea1e4d Mon Sep 17 00:00:00 2001
From: Tristan Matthews <tmatth@videolan.org>
Date: Fri, 3 Oct 2025 08:47:50 -0400
Subject: [PATCH] stream_filter: hds: avoid too many XML elements

While uint8_t wrap is well defined behavior, logically it's not desirable here.

Fixes CID 1666231
---
 modules/stream_filter/hds/hds.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/modules/stream_filter/hds/hds.c b/modules/stream_filter/hds/hds.c
index 1af2c816bf..c2f5880547 100644
--- a/modules/stream_filter/hds/hds.c
+++ b/modules/stream_filter/hds/hds.c
@@ -1334,6 +1334,13 @@ static int parse_Manifest( stream_t *s, manifest_t *m )
                     return VLC_ENOMEM;
                 }
             } else {
+                if( current_element_idx == MAX_XML_DEPTH - 1u )
+                {
+                    msg_Err( s, "Too many XML elements, quitting" );
+                    free(media_id);
+                    return VLC_EGENERIC;
+                }
+
                 if ( !( element_stack[++current_element_idx] = strdup( node ) ) )
                 {
                     free(media_id);