PR #24097 opened by michaelni
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24097
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24097.patch

Fixes: use of uninitialized memory

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



>From 173d9700245feb2ca235b3a6f2766a56b660dd86 Mon Sep 17 00:00:00 2001
From: Umar Pathan <[email protected]>
Date: Wed, 12 Aug 2026 00:19:30 +0200
Subject: [PATCH] avformat/webp_anim_dec: use ffio_read_size for ICCP and EXIF
 chunks

Fixes: use of uninitialized memory

Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavformat/webp_anim_dec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavformat/webp_anim_dec.c b/libavformat/webp_anim_dec.c
index badc36f936..672f126d7c 100644
--- a/libavformat/webp_anim_dec.c
+++ b/libavformat/webp_anim_dec.c
@@ -170,7 +170,7 @@ static int webp_anim_read_header(AVFormatContext *s)
                                                                
AV_PKT_DATA_ICC_PROFILE, size, 0);
                 if (!sd)
                     return AVERROR(ENOMEM);
-                ret = avio_read(pb, sd->data, size);
+                ret = ffio_read_size(pb, sd->data, size);
                 if (ret < 0)
                     return ret;
                 ctx->has_iccp = 1;
@@ -299,7 +299,7 @@ static int webp_anim_read_packet(AVFormatContext *s, 
AVPacket *pkt)
                                                                
AV_PKT_DATA_EXIF, size, 0);
                 if (!sd)
                     return AVERROR(ENOMEM);
-                ret = avio_read(pb, sd->data, size);
+                ret = ffio_read_size(pb, sd->data, size);
                 if (ret < 0)
                     return ret;
                 ctx->has_exif = 1;
-- 
2.52.0

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