Commit 263a85e2a2 for ffmpeg

commit 263a85e2a2127396f8a2b0c329ec798e1ea015ad
Author: Umar Pathan <hello@umar.ac>
Date:   Mon Sep 7 00:32:19 2026 +0200

    avcodec/mscc: avcodec/mscc: allocate the RLE buffer with av_mallocz to avoid heap disclosure

    Fixes: use of uninitialized memory
    Fixes: poc.avi
    Fixes: ROv3JuiJJEdT
    Found-by: Umar Pathan (Umar0x)

diff --git a/libavcodec/mscc.c b/libavcodec/mscc.c
index ba48fc08d9..bc87169065 100644
--- a/libavcodec/mscc.c
+++ b/libavcodec/mscc.c
@@ -233,7 +233,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
         return AVERROR(ENOMEM);

     s->uncomp_size = avctx->height * stride;
-    if (!(s->uncomp_buf = av_malloc(s->uncomp_size)))
+    if (!(s->uncomp_buf = av_mallocz(s->uncomp_size)))
         return AVERROR(ENOMEM);

     return ff_inflate_init(&s->zstream, avctx);