From 8c6d4df57b531c7b41a5f3bce28d2c7bc98a1d3d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Tue, 16 Jun 2026 15:23:13 +0300 Subject: [PATCH] h264parse: Check for enough slice header data being available Patch provided by Ramesh Adhikari, who also reported this. Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5108 Part-of: --- subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c b/subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c index 8bbddb07239..1b97678993f 100644 --- gst/videoparsers/gsth264parse.c.orig +++ gst/videoparsers/gsth264parse.c @@ -1129,7 +1129,8 @@ gst_h264_parse_process_nal (GstH264Parse * h264parse, GstH264NalUnit * nalu) h264parse->picture_start = TRUE; /* don't need to parse the whole slice (header) here */ - if (*(nalu->data + nalu->offset + nalu->header_bytes) & 0x80) { + if (nalu->size > nalu->header_bytes && + *(nalu->data + nalu->offset + nalu->header_bytes) & 0x80) { /* means first_mb_in_slice == 0 */ /* real frame data */ GST_DEBUG_OBJECT (h264parse, "first_mb_in_slice = 0"); -- GitLab