X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fdigsig.c;h=8c0e62975c88d49a09c9c29ab9e7a2b1334a6587;hb=f4178cdddd4cb860a17f363fe13264fff03da7f2;hp=286d558033e270524ff3fdeac9c96393b81170a6;hpb=1ad105fc77e61f9dd7a272659a248e2979fdb893;p=karo-tx-linux.git

diff --git a/lib/digsig.c b/lib/digsig.c
index 286d558033e2..8c0e62975c88 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -163,9 +163,11 @@ static int digsig_verify_rsa(struct key *key,
 	memcpy(out1 + head, p, l);
 
 	err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len);
+	if (err)
+		goto err;
 
-	if (!err && len == hlen)
-		err = memcmp(out2, h, hlen);
+	if (len != hlen || memcmp(out2, h, hlen))
+		err = -EINVAL;
 
 err:
 	mpi_free(in);