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| author |   Kiran Surendran <ksurendr@ala-lpggp3.wrs.com> | 2021-09-09 10:13:12 -0700 |
|---|---|---|
| committer |   Anuj Mittal <anuj.mittal@intel.com> | 2021-09-15 10:06:17 +0800 |
| commit | cbb7b8cfbd4cfe6115e858e14f415d89d182f550 (patch) | |
| tree | a3bd897a6d9649f375b9bdbeef63529e9ad5aa09 | |
| parent | 09de4ef3f33540069a37e9fe6e13081984b77511 (diff) | |
| download | openembedded-core-cbb7b8cfbd4cfe6115e858e14f415d89d182f550.tar.gz | |
ffmpeg: fix CVE-2021-38291
backport from upstream
Signed-off-by: Kiran Surendran <kiran.surendran@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
| -rw-r--r-- | meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38291.patch | 54 | ||||
| -rw-r--r-- | meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb | 1 |
2 files changed, 55 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38291.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38291.patch new file mode 100644 index 0000000000..ef1c760286 --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2021-38291.patch @@ -0,0 +1,54 @@ +CVE: CVE-2021-38291 +Upstream-Status: Backport +Signed-off-by: Kiran Surendran <kiran.surendran@windriver.com> + +From e908bdb157fa493be2b50e2a11055d19c5254a15 Mon Sep 17 00:00:00 2001 +From: James Almer <jamrial@gmail.com> +Date: Wed, 21 Jul 2021 01:02:44 -0300 +Subject: [PATCH] avcodec/utils: don't return negative values in + av_get_audio_frame_duration() + +In some extrme cases, like with adpcm_ms samples with an extremely high channel +count, get_audio_frame_duration() may return a negative frame duration value. +Don't propagate it, and instead return 0, signaling that a duration could not +be determined. + +Fixes ticket #9312 + +Signed-off-by: James Almer <jamrial@gmail.com> +--- + libavcodec/utils.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/libavcodec/utils.c b/libavcodec/utils.c +index 81e34254e8..5fdb10fe09 100644 +--- a/libavcodec/utils.c ++++ b/libavcodec/utils.c +@@ -1776,20 +1776,22 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, + + int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes) + { +- return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate, ++ int duration = get_audio_frame_duration(avctx->codec_id, avctx->sample_rate, + avctx->channels, avctx->block_align, + avctx->codec_tag, avctx->bits_per_coded_sample, + avctx->bit_rate, avctx->extradata, avctx->frame_size, + frame_bytes); ++ return FFMAX(0, duration); + } + + int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes) + { +- return get_audio_frame_duration(par->codec_id, par->sample_rate, ++ int duration = get_audio_frame_duration(par->codec_id, par->sample_rate, + par->channels, par->block_align, + par->codec_tag, par->bits_per_coded_sample, + par->bit_rate, par->extradata, par->frame_size, + frame_bytes); ++ return FFMAX(0, duration); + } + + #if !HAVE_THREADS +-- +2.25.1 + diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb index 0a49493abd..3e7ceb859f 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.3.2.bb @@ -31,6 +31,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \ file://fix-CVE-2020-22015.patch \ file://fix-CVE-2020-22021.patch \ file://fix-CVE-2020-22033-CVE-2020-22019.patch \ + file://fix-CVE-2021-38291.patch \ " SRC_URI[sha256sum] = "46e4e64f1dd0233cbc0934b9f1c0da676008cad34725113fb7f802cfa84ccddb" |