Commit 1544583b authored by Kurt Roeckx's avatar Kurt Roeckx
Browse files

Avoid creating an illegal pointer 



Found by tis-interpreter

Reviewed-by: default avatarRich Salz <rsalz@openssl.org>

GH: #1106
parent acc60092

crypto/bn/bn_lib.c

+4 −2
Original line number Diff line number Diff line
@@ -1022,9 +1022,11 @@ void bn_correct_top(BIGNUM *a) 
    int tmp_top = a->top;



    if (tmp_top > 0) {

        for (ftl = &(a->d[tmp_top - 1]); tmp_top > 0; tmp_top--)

            if (*(ftl--))

        for (ftl = &(a->d[tmp_top]); tmp_top > 0; tmp_top--) {

            ftl--;

            if (*ftl != 0)

                break;

        }

        a->top = tmp_top;

    }

    bn_pollute(a);