Commit 3d6a441fd3 for ffmpeg

commit 3d6a441fd35e5891b0470af8c1bf216965116f31
Author: Michael Niedermayer <michael@niedermayer.cc>
Date:   Tue Oct 6 07:31:35 2026 +0200

    avformat/rtpdec_rfc4175: Clear the frame buffer

    The fix is the one recommended in the report.

    Fixes: use of uninitialized memory
    Fixes: V8a3e2cGQI7w
    Fixes: AISLE-2026-0111-00477
    Use of uninitialized memory Replicated through UnModified FFmpeg with Valgrind
    Found-by: Joshua Rogers <joshua.rogers@aisle.com>

diff --git a/libavformat/rtpdec_rfc4175.c b/libavformat/rtpdec_rfc4175.c
index b49fc55d2d..41bf4a2c5d 100644
--- a/libavformat/rtpdec_rfc4175.c
+++ b/libavformat/rtpdec_rfc4175.c
@@ -260,7 +260,7 @@ static int rfc4175_handle_packet(AVFormatContext *ctx, PayloadContext *data,
         }

         if (!data->frame)
-            data->frame = av_malloc(data->frame_size);
+            data->frame = av_mallocz(data->frame_size + AV_INPUT_BUFFER_PADDING_SIZE);

         data->timestamp = *timestamp;