Commit 2045c581 authored by Bernd Edlinger's avatar Bernd Edlinger Committed by Kurt Roeckx
Browse files

Fix a memory leak in RSA_padding_add_PKCS1_OAEP_mgf1 



Signed-off-by: default avatarKurt Roeckx <kurt@roeckx.be>
Reviewed-by: default avatarMatt Caswell <matt@openssl.org>
GH: #2140
(cherry picked from commit c6d215e0)
parent 18b8431f

crypto/rsa/rsa_oaep.c

+6 −2
Original line number Diff line number Diff line
@@ -89,17 +89,21 @@ int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen, 
    }



    if (PKCS1_MGF1(dbmask, emlen - mdlen, seed, mdlen, mgf1md) < 0)

        return 0;

        goto err;

    for (i = 0; i < emlen - mdlen; i++)

        db[i] ^= dbmask[i];



    if (PKCS1_MGF1(seedmask, mdlen, db, emlen - mdlen, mgf1md) < 0)

        return 0;

        goto err;

    for (i = 0; i < mdlen; i++)

        seed[i] ^= seedmask[i];



    OPENSSL_free(dbmask);

    return 1;



 err:

    OPENSSL_free(dbmask);

    return 0;

}



int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,