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check limit of width * height is 32 bits

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Update the RIFF-specs file too

Change-Id: I113a7e25da2f7a19c1344c1dc5d496127cfe2596
This commit is contained in:
Pascal Massimino
2012-07-03 05:42:13 -07:00
parent 16c46e83ac
commit 7f22bd2596
5 changed files with 56 additions and 38 deletions
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src/mux/muxread.c
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@ -218,6 +218,7 @@ static uint8_t* EmitVP8XChunk(uint8_t* const dst, uint32_t width,
const size_t vp8x_size = CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE;
assert(width >= 1 && height >= 1);
assert(width <= MAX_CANVAS_SIZE && height <= MAX_CANVAS_SIZE);
assert(width * (uint64_t)height < MAX_IMAGE_AREA);
PutLE32(dst, mktag('V', 'P', '8', 'X'));
PutLE32(dst + TAG_SIZE, VP8X_CHUNK_SIZE);
PutLE32(dst + CHUNK_HEADER_SIZE, flags);