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commit b2f1657087a117c52f8cfa2ba981ddb804d3faba Author: Michael Niedermayer <[email protected]> AuthorDate: Sun Feb 8 00:28:04 2026 +0100 Commit: Michael Niedermayer <[email protected]> CommitDate: Tue Mar 3 00:48:38 2026 +0100 avformat/segafilm: dont read uninitialized value scratch[20] doesnt exist in version 0 Fixes: use of uninitialized memory Fixes: 471664627/clusterfuzz-testcase-minimized-ffmpeg_dem_SEGAFILM_fuzzer-4738726971637760 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg --- libavformat/segafilm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c index 2b853017db..e0ea1da31e 100644 --- a/libavformat/segafilm.c +++ b/libavformat/segafilm.c @@ -163,7 +163,7 @@ static int film_read_header(AVFormatContext *s) st->codecpar->height = AV_RB32(&scratch[12]); if (film->video_type == AV_CODEC_ID_RAWVIDEO) { - if (scratch[20] == 24) { + if (film->version == 0 || scratch[20] == 24) { st->codecpar->format = AV_PIX_FMT_RGB24; } else { av_log(s, AV_LOG_ERROR, "raw video is using unhandled %dbpp\n", scratch[20]); _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
