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Fix free of garbage pointer. PR#3595

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Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit e04d426bf98ebb22abf0f15b6f09d333a6e8b2ad)
This commit is contained in:
Matt Caswell 2014-11-12 11:18:09 +00:00
parent b726b8a60c
commit bbb76be9b5
1 changed files with 4 additions and 3 deletions
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7
crypto/ec/ec_mult.c
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@ -445,15 +445,16 @@ int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
wNAF_len = OPENSSL_malloc(totalnum * sizeof wNAF_len[0]);
wNAF = OPENSSL_malloc((totalnum + 1) * sizeof wNAF[0]); /* includes space for pivot */
val_sub = OPENSSL_malloc(totalnum * sizeof val_sub[0]);
/* Ensure wNAF is initialised in case we end up going to err */
if (wNAF) wNAF[0] = NULL; /* preliminary pivot */
if (!wsize || !wNAF_len || !wNAF || !val_sub)
{
ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);
goto err;
}
wNAF[0] = NULL; /* preliminary pivot */
/* num_val will be the total number of temporarily precomputed points */
num_val = 0;