digsig: Fix memory leakage in digsig_verify_rsa()

digsig_verify_rsa() does not free kmalloc'ed buffer returned by mpi_get_buffer(). Signed-off-by: YOSHIFUJI Hideaki <[email protected]> Signed-off-by: Dmitry Kasatkin <[email protected]> Cc: [email protected] Signed-off-by: James Morris <[email protected]>
akeromi · Feb 1, 2013 · 7810cc1 · 7810cc1
1 parent 88b62b9
commit 7810cc1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/digsig.c b/lib/digsig.c
@@ -162,6 +162,8 @@ static int digsig_verify_rsa(struct key *key,
 	memset(out1, 0, head);
 	memcpy(out1 + head, p, l);
 
+	kfree(p);
+
 	err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len);
 	if (err)
 		goto err;