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authorShane Lontis <shane.lontis@oracle.com>2019-03-19 09:58:09 +1000
committerRichard Levitte <levitte@openssl.org>2019-03-19 07:25:48 +0100
commitce1415ed2ce15305356cd028bcf7b9bc688d6d5c (patch)
treee9f4d5ed4bbb781d42b09c6a2c9bebd73fe8917f /crypto/bn/bn_lib.c
parent226f2bf191ba8c2b33749ddc80c9ace051bebf80 (diff)
Added NULL check to BN_clear() & BN_CTX_end()
Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8518)
Diffstat (limited to 'crypto/bn/bn_lib.c')
-rw-r--r--crypto/bn/bn_lib.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/bn/bn_lib.c b/crypto/bn/bn_lib.c
index 6de17c3b7a..17293ede34 100644
--- a/crypto/bn/bn_lib.c
+++ b/crypto/bn/bn_lib.c
@@ -338,6 +338,8 @@ void BN_swap(BIGNUM *a, BIGNUM *b)
void BN_clear(BIGNUM *a)
{
+ if (a == NULL)
+ return;
bn_check_top(a);
if (a->d != NULL)
OPENSSL_cleanse(a->d, sizeof(*a->d) * a->dmax);