Check length of output <= 255*HashLen
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@ -1215,11 +1215,18 @@ int wolfSSL_GetHmacMaxSize(void)
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word32 outIdx = 0;
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word32 hashSz = wc_HmacSizeByType(type);
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byte n = 0x1;
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word32 N = 0; /* rf5869: N = ceil(L/HashLen)*/
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N = (outSz/hashSz) + ((outSz % hashSz) != 0);
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if (out == NULL || N > 255)
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return BAD_FUNC_ARG;
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ret = wc_HmacInit(&myHmac, NULL, INVALID_DEVID);
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if (ret != 0)
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return ret;
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while (outIdx < outSz) {
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int tmpSz = (n == 1) ? 0 : hashSz;
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word32 left = outSz - outIdx;
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