diff options
Diffstat (limited to 'security/keys/request_key.c')
| -rw-r--r-- | security/keys/request_key.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/security/keys/request_key.c b/security/keys/request_key.c index 66e21184b559..4bd6bdb74193 100644 --- a/security/keys/request_key.c +++ b/security/keys/request_key.c @@ -126,6 +126,7 @@ static int call_sbin_request_key(struct key_construction *cons, cred = get_current_cred(); keyring = keyring_alloc(desc, cred->fsuid, cred->fsgid, cred, + KEY_POS_ALL | KEY_USR_VIEW | KEY_USR_READ, KEY_ALLOC_QUOTA_OVERRUN, NULL); put_cred(cred); if (IS_ERR(keyring)) { @@ -150,12 +151,12 @@ static int call_sbin_request_key(struct key_construction *cons, cred->thread_keyring ? cred->thread_keyring->serial : 0); prkey = 0; - if (cred->tgcred->process_keyring) - prkey = cred->tgcred->process_keyring->serial; + if (cred->process_keyring) + prkey = cred->process_keyring->serial; sprintf(keyring_str[1], "%d", prkey); rcu_read_lock(); - session = rcu_dereference(cred->tgcred->session_keyring); + session = rcu_dereference(cred->session_keyring); if (!session) session = cred->user->session_keyring; sskey = session->serial; @@ -297,14 +298,14 @@ static void construct_get_dest_keyring(struct key **_dest_keyring) break; case KEY_REQKEY_DEFL_PROCESS_KEYRING: - dest_keyring = key_get(cred->tgcred->process_keyring); + dest_keyring = key_get(cred->process_keyring); if (dest_keyring) break; case KEY_REQKEY_DEFL_SESSION_KEYRING: rcu_read_lock(); dest_keyring = key_get( - rcu_dereference(cred->tgcred->session_keyring)); + rcu_dereference(cred->session_keyring)); rcu_read_unlock(); if (dest_keyring) @@ -347,6 +348,7 @@ static int construct_alloc_key(struct key_type *type, const struct cred *cred = current_cred(); unsigned long prealloc; struct key *key; + key_perm_t perm; key_ref_t key_ref; int ret; @@ -355,8 +357,15 @@ static int construct_alloc_key(struct key_type *type, *_key = NULL; mutex_lock(&user->cons_lock); + perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK | KEY_POS_SETATTR; + perm |= KEY_USR_VIEW; + if (type->read) + perm |= KEY_POS_READ; + if (type == &key_type_keyring || type->update) + perm |= KEY_POS_WRITE; + key = key_alloc(type, description, cred->fsuid, cred->fsgid, cred, - KEY_POS_ALL, flags); + perm, flags); if (IS_ERR(key)) goto alloc_failed; |