mirror/openssl
2
0
Fork 0
mirror of https://github.com/openssl/openssl.git synced 2025-03-31 20:10:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

Free tempory data on error in ec_wNAF_mul()

Browse Source 
The ec_wNAF_mul() function allocates some temporary storage that it
doesn't always free on an error condition.

Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit is contained in:
Matt Caswell 2016-04-27 14:38:44 +01:00
parent ff3bb913cf
commit 0e9eb1a57b
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/ec/ec_mult.c
View File

@ -312,6 +312,7 @@ int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
numblocks = (tmp_len + blocksize - 1) / blocksize;
if (numblocks > pre_comp->numblocks) {
ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
OPENSSL_free(tmp_wNAF);
goto err;
}
totalnum = num + numblocks;
@ -326,6 +327,7 @@ int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
wNAF_len[i] = blocksize;
if (tmp_len < blocksize) {
ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
OPENSSL_free(tmp_wNAF);
goto err;
}
tmp_len -= blocksize;