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Check return value of some BN functions.
[openssl.git]
/
crypto
/
bn
/
bn_exp.c
diff --git
a/crypto/bn/bn_exp.c
b/crypto/bn/bn_exp.c
index 61ab56d0df6ce5bd509c18edc23e3ae41a581d4d..feeb7649a5dc5af3ebf665710805637dc9329867 100644
(file)
--- a/
crypto/bn/bn_exp.c
+++ b/
crypto/bn/bn_exp.c
@@
-78,8
+78,9
@@
int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
goto err;
}
}
- if (r != rr)
- BN_copy(r, rr);
+ if (r != rr && BN_copy(r, rr) == NULL)
+ goto err;
+
ret = 1;
err:
BN_CTX_end(ctx);