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utils.h: add SizeOverflow()

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this normalizes the 'size != (size_t)size' checks in the libraries.

Change-Id: I1e8ccd0d3697266f23911ecf0f7a546f011befde
This commit is contained in:
James Zern
2021-06-14 12:20:35 -07:00
parent 695bdaa2f6
commit 28d488e6f1
6 changed files with 13 additions and 9 deletions
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2
src/dec/frame_dec.c
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@ -705,7 +705,7 @@ static int AllocateMemory(VP8Decoder* const dec) {
+ cache_size + alpha_size + WEBP_ALIGN_CST;
uint8_t* mem;
if (needed != (size_t)needed) return 0; // check for overflow
if (!CheckSizeOverflow(needed)) return 0; // check for overflow
if (needed > dec->mem_size_) {
WebPSafeFree(dec->mem_);
dec->mem_size_ = 0;