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authorViktor Dukhovni <openssl-users@dukhovni.org>2016-01-13 19:51:17 -0500
committerViktor Dukhovni <openssl-users@dukhovni.org>2016-01-13 19:58:57 -0500
commitb098dcae66433efc4c073ca2cc5fc64cdf8a613e (patch)
treec3471541000c35a069df33c513f0041b8609718b /crypto/ec/ecp_nistz256.c
parent502e16853367f373ec2aad94f1fd24884c4a7b65 (diff)
Fix double-free bugs in EC group precomputation state
Reviewed-by: Rich Salz <rsalz@openssl.org>
Diffstat (limited to 'crypto/ec/ecp_nistz256.c')
-rw-r--r--crypto/ec/ecp_nistz256.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/ec/ecp_nistz256.c b/crypto/ec/ecp_nistz256.c
index 16e79299c9..c25a7daf3c 100644
--- a/crypto/ec/ecp_nistz256.c
+++ b/crypto/ec/ecp_nistz256.c
@@ -770,6 +770,7 @@ __owur static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
/* if there is an old NISTZ256_PRE_COMP object, throw it away */
EC_nistz256_pre_comp_free(group->pre_comp.nistz256);
+ group->pre_comp.nistz256 = NULL;
generator = EC_GROUP_get0_generator(group);
if (generator == NULL) {
ECerr(EC_F_ECP_NISTZ256_MULT_PRECOMPUTE, EC_R_UNDEFINED_GENERATOR);