From: Bhavesh R Maheshwari <[email protected]> Pick the patch from [1], also referenced in the NVD report [2].
[1] https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/de771bd52774a52d45b0e2c82e56995a1ef40df7 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-65704 Signed-off-by: Bhavesh R Maheshwari <[email protected]> --- changes in v2: - rebased on new CVE fix --- .../ffmpeg/ffmpeg/CVE-2026-65704.patch | 35 +++++++++++++++++++ .../recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb | 1 + 2 files changed, 36 insertions(+) create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch new file mode 100644 index 0000000000..223fd03c33 --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch @@ -0,0 +1,35 @@ +From e6f2209a3ab20ef0489395697a1882e97658b5b9 Mon Sep 17 00:00:00 2001 +From: Michael Niedermayer <[email protected]> +Date: Fri, 10 Jul 2026 04:07:35 +0200 +Subject: [PATCH 6/9] avformat/ty: don't let the Series2 AC3 trim underflow the + packet size + +Fixes: negative-size-param +Fixes: ty-s2-ac3-negative-size-single-file.ffconcat / create_poc.py +Fixes: g0qeE6KvrjZi +Found-by: Adrian Junge (vurlo) + +CVE: CVE-2026-65704 +Upstream-Status: Backport [https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/de771bd52774a52d45b0e2c82e56995a1ef40df7] + +Signed-off-by: Bhavesh R Maheshwari <[email protected]> +--- + libavformat/ty.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/libavformat/ty.c b/libavformat/ty.c +index 596e4cc..1f2b6f8 100644 +--- a/libavformat/ty.c ++++ b/libavformat/ty.c +@@ -577,7 +577,7 @@ static int demux_audio(AVFormatContext *s, TyRecHdr *rec_hdr, AVPacket *pkt) + if (ty->audio_type == TIVO_AUDIO_AC3 && + ty->tivo_series == TIVO_SERIES2) { + if (ty->ac3_pkt_size + pkt->size > AC3_PKT_LENGTH) { +- pkt->size -= 2; ++ pkt->size -= FFMIN(pkt->size, 2); + ty->ac3_pkt_size = 0; + } else { + ty->ac3_pkt_size += pkt->size; +-- +2.43.0 + diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb index 8be6b423f7..82f4b221b7 100644 --- a/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb @@ -33,6 +33,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \ file://CVE-2026-64834.patch \ file://CVE-2026-64835.patch \ file://CVE-2026-65703.patch \ + file://CVE-2026-65704.patch \ " SRC_URI[sha256sum] = "6136812ea6d4e68bdba27e33c2a94382711cdf4f8602ffef056ff792bd6f9818" -- 2.43.0
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