Commit eeab356c authored by Kurt Roeckx's avatar Kurt Roeckx
Browse files

Don't call memcpy with NULL as source 

Calling it with lenght 0 and NULL as source is undefined behaviour.

Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
GH: #2089
parent 1ea01427

crypto/bn/bn_intern.c

+1 −0
Changes for crypto/bn/bn_intern.c: 1 added line, 0 removed lines.
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ int bn_copy_words(BN_ULONG *out, const BIGNUM *in, int size) 
        return 0;



    memset(out, 0, sizeof(*out) * size);

    if (in->d != NULL)

        memcpy(out, in->d, sizeof(*out) * in->top);

    return 1;

}