PR #23468 opened by michaelni
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23468
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23468.patch

Fixes: heap buffer overflow

Signed-off-by: Michael Niedermayer <[email protected]>



>From 31f7d6d0abde13dda4b7c3f302993194f30faad1 Mon Sep 17 00:00:00 2001
From: jiale yao <[email protected]>
Date: Fri, 12 Jun 2026 17:26:09 +0200
Subject: [PATCH] avformat/rtpenc_amr: Check input size

Fixes: heap buffer overflow

Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavformat/rtpenc_amr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/rtpenc_amr.c b/libavformat/rtpenc_amr.c
index 8df5a3cf3e..f88784a86c 100644
--- a/libavformat/rtpenc_amr.c
+++ b/libavformat/rtpenc_amr.c
@@ -35,6 +35,9 @@ void ff_rtp_send_amr(AVFormatContext *s1, const uint8_t 
*buff, int size)
     uint8_t *p;
     int len;
 
+    if (size < 1)
+        return;
+
     /* Test if the packet must be sent. */
     len = s->buf_ptr - s->buf;
     if (s->num_frames &&
-- 
2.52.0

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