[FFmpeg-devel] [PATCH 17/22] avcodec/dovi_rpudec: sanitize DM data before decoding

From: Niklas Haas <ffmpeg@haasn.xyz>
To: ffmpeg-devel@ffmpeg.org
Cc: Niklas Haas <git@haasn.dev>
Subject: [FFmpeg-devel] [PATCH 17/22] avcodec/dovi_rpudec: sanitize DM data before decoding
Date: Sun, 28 Jul 2024 12:25:22 +0200
Message-ID: <20240728102527.17991-17-ffmpeg@haasn.xyz> (raw)
In-Reply-To: <20240728102527.17991-1-ffmpeg@haasn.xyz>

From: Niklas Haas <git@haasn.dev>

Some DM types do not fill the whole struct, so just clear it entirely
before going filling the decoded values.
---
 libavcodec/dovi_rpudec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/dovi_rpudec.c b/libavcodec/dovi_rpudec.c
index 91c9e41926..9f295d4fe4 100644
--- a/libavcodec/dovi_rpudec.c
+++ b/libavcodec/dovi_rpudec.c
@@ -323,6 +323,7 @@ static int parse_ext_blocks(DOVIContext *s, GetBitContext *gb, int ver,
             dm = &ext->dm_dynamic[ext->num_dynamic++];
         }
 
+        memset(dm, 0, sizeof(*dm));
         dm->level = level;
         switch (ver) {
         case 1: ret = parse_ext_v1(s, gb, dm); break;
-- 
2.45.2

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