diff options
| -rw-r--r-- | include/linux/key.h | 2 | ||||
| -rw-r--r-- | lib/mpi/mpicoder.c | 2 | ||||
| -rw-r--r-- | security/integrity/ima/ima_policy.c | 3 | ||||
| -rw-r--r-- | security/keys/user_defined.c | 6 |
4 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/key.h b/include/linux/key.h index bfc014c5735..5253471cd2e 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -271,7 +271,7 @@ extern int keyring_add_key(struct key *keyring, extern struct key *key_lookup(key_serial_t id); -static inline key_serial_t key_serial(struct key *key) +static inline key_serial_t key_serial(const struct key *key) { return key ? key->serial : 0; } diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c index fe84bb978e3..716802b774e 100644 --- a/lib/mpi/mpicoder.c +++ b/lib/mpi/mpicoder.c @@ -255,6 +255,8 @@ void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign) if (!n) n++; /* avoid zero length allocation */ p = buffer = kmalloc(n, GFP_KERNEL); + if (!p) + return NULL; for (i = a->nlimbs - 1; i >= 0; i--) { alimb = a->d[i]; diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index d661afbe474..d45061d02fe 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -99,6 +99,7 @@ static bool ima_match_rules(struct ima_measure_rule_entry *rule, struct inode *inode, enum ima_hooks func, int mask) { struct task_struct *tsk = current; + const struct cred *cred = current_cred(); int i; if ((rule->flags & IMA_FUNC) && rule->func != func) @@ -108,7 +109,7 @@ static bool ima_match_rules(struct ima_measure_rule_entry *rule, if ((rule->flags & IMA_FSMAGIC) && rule->fsmagic != inode->i_sb->s_magic) return false; - if ((rule->flags & IMA_UID) && rule->uid != tsk->cred->uid) + if ((rule->flags & IMA_UID) && rule->uid != cred->uid) return false; for (i = 0; i < MAX_LSM_RULES; i++) { int rc = 0; diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c index 69ff52c08e9..2aee3c5a3b9 100644 --- a/security/keys/user_defined.c +++ b/security/keys/user_defined.c @@ -59,7 +59,7 @@ int user_instantiate(struct key *key, const void *data, size_t datalen) /* attach the data */ upayload->datalen = datalen; memcpy(upayload->data, data, datalen); - rcu_assign_pointer(key->payload.data, upayload); + rcu_assign_keypointer(key, upayload); ret = 0; error: @@ -98,7 +98,7 @@ int user_update(struct key *key, const void *data, size_t datalen) if (ret == 0) { /* attach the new data, displacing the old */ zap = key->payload.data; - rcu_assign_pointer(key->payload.data, upayload); + rcu_assign_keypointer(key, upayload); key->expiry = 0; } @@ -133,7 +133,7 @@ void user_revoke(struct key *key) key_payload_reserve(key, 0); if (upayload) { - rcu_assign_pointer(key->payload.data, NULL); + rcu_assign_keypointer(key, NULL); kfree_rcu(upayload, rcu); } } |