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mbedtls: stack warning fix, cf 17bce5fb5a

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This commit is contained in:
Philippe Teuwen 2021-05-14 11:08:50 +02:00
parent ec8ec893c6
commit 9d8fd0f2bb
1 changed files with 3 additions and 2 deletions
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5
common/mbedtls/ecdsa.c
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@ -703,8 +703,9 @@ int mbedtls_ecdsa_verify(mbedtls_ecp_group *grp,
int ecdsa_signature_to_asn1(const mbedtls_mpi *r, const mbedtls_mpi *s,
unsigned char *sig, size_t *slen) {
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char buf[MBEDTLS_ECDSA_MAX_LEN];
unsigned char *p = buf + sizeof(buf);
unsigned char buf[MBEDTLS_ECDSA_MAX_LEN] = {0};
unsigned char *p = buf + sizeof(buf) - 1;
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_mpi(&p, buf, s));