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c-kzg-4844
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Make bytes big enough in case n == 0

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Ramana Kumar 2022-11-26 22:14:21 +00:00
parent 73d5d2fb0b
commit b69104859f
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1 changed files with 1 additions and 1 deletions
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src/c_kzg_4844.c
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@ -1098,7 +1098,7 @@ static C_KZG_RET compute_challenges(BLSFieldElement *out, BLSFieldElement r_powe
const size_t np = ni + n * BYTES_PER_BLOB;
const size_t nb = np + n * 48;
uint8_t* bytes = calloc(nb, sizeof(uint8_t));
uint8_t* bytes = calloc(nb + (n == 0), sizeof(uint8_t)); // need at least 1 byte more than ni for hash later
if (bytes == NULL) return C_KZG_MALLOC;
memcpy(bytes, FIAT_SHAMIR_PROTOCOL_DOMAIN, 16);