From 13aa82bbbb71c04bdcecf1341be4a23aee271bec Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 31 Jan 2014 17:31:21 +0100
Subject: [PATCH] avformat/flac_picture: clear padding area
aviod use of uninitialized memory
Fixes: asan_heap-oob_1487fa4_4706_cov_364534849_cover_art.flac
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavformat/flac_picture.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libavformat/flac_picture.c b/libavformat/flac_picture.c
index a58b3055c8..5f2026d1d0 100644
--- a/libavformat/flac_picture.c
+++ b/libavformat/flac_picture.c
@@ -110,6 +110,7 @@ int ff_flac_parse_picture(AVFormatContext *s, uint8_t *buf, int buf_size)
if (!(data = av_buffer_alloc(len + FF_INPUT_BUFFER_PADDING_SIZE))) {
RETURN_ERROR(AVERROR(ENOMEM));
}
+ memset(data->data + len, 0, FF_INPUT_BUFFER_PADDING_SIZE);
if (avio_read(pb, data->data, len) != len) {
av_log(s, AV_LOG_ERROR, "Error reading attached picture data.\n");
if (s->error_recognition & AV_EF_EXPLODE)