diff options
Diffstat (limited to 'security/keys/encrypted-keys/encrypted.c')
| -rw-r--r-- | security/keys/encrypted-keys/encrypted.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c index 41144f71d61..5fe443d120a 100644 --- a/security/keys/encrypted-keys/encrypted.c +++ b/security/keys/encrypted-keys/encrypted.c @@ -314,7 +314,7 @@ static struct key *request_user_key(const char *master_desc, u8 **master_key, goto error; down_read(&ukey->sem); - upayload = rcu_dereference(ukey->payload.data); + upayload = ukey->payload.data; *master_key = upayload->data; *master_keylen = upayload->datalen; error: @@ -609,7 +609,7 @@ static struct encrypted_key_payload *encrypted_key_alloc(struct key *key, long dlen; int ret; - ret = strict_strtol(datalen, 10, &dlen); + ret = kstrtol(datalen, 10, &dlen); if (ret < 0 || dlen < MIN_DATA_SIZE || dlen > MAX_DATA_SIZE) return ERR_PTR(-EINVAL); @@ -773,8 +773,8 @@ static int encrypted_init(struct encrypted_key_payload *epayload, * * On success, return 0. Otherwise return errno. */ -static int encrypted_instantiate(struct key *key, const void *data, - size_t datalen) +static int encrypted_instantiate(struct key *key, + struct key_preparsed_payload *prep) { struct encrypted_key_payload *epayload = NULL; char *datablob = NULL; @@ -782,16 +782,17 @@ static int encrypted_instantiate(struct key *key, const void *data, char *master_desc = NULL; char *decrypted_datalen = NULL; char *hex_encoded_iv = NULL; + size_t datalen = prep->datalen; int ret; - if (datalen <= 0 || datalen > 32767 || !data) + if (datalen <= 0 || datalen > 32767 || !prep->data) return -EINVAL; datablob = kmalloc(datalen + 1, GFP_KERNEL); if (!datablob) return -ENOMEM; datablob[datalen] = 0; - memcpy(datablob, data, datalen); + memcpy(datablob, prep->data, datalen); ret = datablob_parse(datablob, &format, &master_desc, &decrypted_datalen, &hex_encoded_iv); if (ret < 0) @@ -810,7 +811,7 @@ static int encrypted_instantiate(struct key *key, const void *data, goto out; } - rcu_assign_pointer(key->payload.data, epayload); + rcu_assign_keypointer(key, epayload); out: kfree(datablob); return ret; @@ -834,16 +835,17 @@ static void encrypted_rcu_free(struct rcu_head *rcu) * * On success, return 0. Otherwise return errno. */ -static int encrypted_update(struct key *key, const void *data, size_t datalen) +static int encrypted_update(struct key *key, struct key_preparsed_payload *prep) { struct encrypted_key_payload *epayload = key->payload.data; struct encrypted_key_payload *new_epayload; char *buf; char *new_master_desc = NULL; const char *format = NULL; + size_t datalen = prep->datalen; int ret = 0; - if (datalen <= 0 || datalen > 32767 || !data) + if (datalen <= 0 || datalen > 32767 || !prep->data) return -EINVAL; buf = kmalloc(datalen + 1, GFP_KERNEL); @@ -851,7 +853,7 @@ static int encrypted_update(struct key *key, const void *data, size_t datalen) return -ENOMEM; buf[datalen] = 0; - memcpy(buf, data, datalen); + memcpy(buf, prep->data, datalen); ret = datablob_parse(buf, &format, &new_master_desc, NULL, NULL); if (ret < 0) goto out; @@ -874,7 +876,7 @@ static int encrypted_update(struct key *key, const void *data, size_t datalen) memcpy(new_epayload->payload_data, epayload->payload_data, epayload->payload_datalen); - rcu_assign_pointer(key->payload.data, new_epayload); + rcu_assign_keypointer(key, new_epayload); call_rcu(&epayload->rcu, encrypted_rcu_free); out: kfree(buf); |