PR #21494 opened by James Almer (jamrial) URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21494 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21494.patch
Fixes issue #21493. >From 927702d39b5612cd34f3f5c174f5a14bf86476e0 Mon Sep 17 00:00:00 2001 From: James Almer <[email protected]> Date: Fri, 16 Jan 2026 13:14:09 -0300 Subject: [PATCH] avformat/hcom: check that all extradata bytes were read from the input Fixes issue #21493. Signed-off-by: James Almer <[email protected]> --- libavformat/hcom.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/hcom.c b/libavformat/hcom.c index 2a8c524496..fa32f2bbb9 100644 --- a/libavformat/hcom.c +++ b/libavformat/hcom.c @@ -73,7 +73,9 @@ static int hcom_read_header(AVFormatContext *s) return ret; AV_WB16(st->codecpar->extradata, dict_entries); AV_WB32(st->codecpar->extradata + 2, compresstype); - avio_read(s->pb, st->codecpar->extradata + 6, dict_entries * 4); + ret = ffio_read_size(s->pb, st->codecpar->extradata + 6, dict_entries * 4); + if (ret < 0) + return ret; avio_skip(s->pb, 1); st->codecpar->extradata[dict_entries * 4 + 6] = avio_r8(s->pb); -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
