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-rw-r--r--crypto/rsa/rsa_ossl.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/rsa/rsa_ossl.c b/crypto/rsa/rsa_ossl.c
index 5e0ad92cb1..92c4be1868 100644
--- a/crypto/rsa/rsa_ossl.c
+++ b/crypto/rsa/rsa_ossl.c
@@ -608,6 +608,8 @@ static int rsa_ossl_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
r1 = BN_CTX_get(ctx);
m1 = BN_CTX_get(ctx);
vrfy = BN_CTX_get(ctx);
+ if (vrfy == NULL)
+ goto err;
{
BIGNUM *p = BN_new(), *q = BN_new();