Fixes: index 4294967295 out of bounds for type 'uint16_t [65536]' Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-6666195176914944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/tiff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index 1a1879de89..c3f67860db 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -1451,7 +1451,7 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame) break; case TIFF_GRAY_RESPONSE_CURVE: case DNG_LINEARIZATION_TABLE: - if (count > FF_ARRAY_ELEMS(s->dng_lut)) + if (count > FF_ARRAY_ELEMS(s->dng_lut) || count < 1) return AVERROR_INVALIDDATA; for (int i = 0; i < count; i++) s->dng_lut[i] = ff_tget(&s->gb, type, s->le); -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
