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avcodec/rtv1: fix undefined FFALIGN

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Fixes: signed integer overflow: 2147483647 + 4 cannot be represented in type 'int'
Fixes: 62285/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RTV1_fuzzer-6324303861514240

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-03-26 02:30:57 +01:00
parent 7eabe56436
commit d188a86730
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1 changed files with 2 additions and 0 deletions
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libavcodec/rtv1.c
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@ -113,6 +113,8 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *p,
width = bytestream2_get_le32(&gb); width = bytestream2_get_le32(&gb);
height = bytestream2_get_le32(&gb); height = bytestream2_get_le32(&gb);
if (width > INT_MAX-4U || height > INT_MAX-4U)
return AVERROR_INVALIDDATA;
ret = ff_set_dimensions(avctx, FFALIGN(width, 4), FFALIGN(height, 4)); ret = ff_set_dimensions(avctx, FFALIGN(width, 4), FFALIGN(height, 4));
if (ret < 0) if (ret < 0)
return ret; return ret;