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commit b2695bcbb3f4c75ec5db9bc97f57af0521d6c05a Author: Michael Niedermayer <[email protected]> AuthorDate: Sun May 31 16:44:12 2026 +0200 Commit: michaelni <[email protected]> CommitDate: Sat Jun 13 22:03:59 2026 +0000 avcodec/sanm: reject codec47 frames taller than the allocated buffer Fixes: 513469519/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SANM_fuzzer-5024854725427200 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> --- libavcodec/sanm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/sanm.c b/libavcodec/sanm.c index ea80f60c10..ab2e878030 100644 --- a/libavcodec/sanm.c +++ b/libavcodec/sanm.c @@ -1563,6 +1563,9 @@ static int old_codec47(SANMVideoContext *ctx, GetByteContext *gb, int top, int l if (width > ctx->aligned_width) return AVERROR_INVALIDDATA; + if (FFALIGN(height, 8) > ctx->aligned_height) + return AVERROR_INVALIDDATA; + if (bytestream2_get_bytes_left(gb) < 26) return AVERROR_INVALIDDATA; _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
