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authorAlex Shi <alex.shi@linaro.org>2016-05-05 13:36:03 +0800
committerAlex Shi <alex.shi@linaro.org>2016-05-05 13:36:03 +0800
commite91b1cc90283c1b9b75670b027a18afbd20fe070 (patch)
tree81c395406a3774775a183d544aee9c5ced1c31d6 /security/keys/trusted.c
parentd83731cf53fd3af7173cab5e3f573d06ebc852be (diff)
parent0b3df30dcadcddc56aed56c3c2d2de2ca963e81d (diff)
Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-rtlsk-v4.1-16.06-rtlsk-v4.1-16.05-rt
Diffstat (limited to 'security/keys/trusted.c')
-rw-r--r--security/keys/trusted.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index c0594cb07ada..aeb38f1a12e7 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -984,13 +984,16 @@ static void trusted_rcu_free(struct rcu_head *rcu)
*/
static int trusted_update(struct key *key, struct key_preparsed_payload *prep)
{
- struct trusted_key_payload *p = key->payload.data;
+ struct trusted_key_payload *p;
struct trusted_key_payload *new_p;
struct trusted_key_options *new_o;
size_t datalen = prep->datalen;
char *datablob;
int ret = 0;
+ if (test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+ return -ENOKEY;
+ p = key->payload.data;
if (!p->migratable)
return -EPERM;
if (datalen <= 0 || datalen > 32767 || !prep->data)