提交 5ad18a0d 编写于 作者: J Justin P. Mattock 提交者: James Morris

KEYS: Reinstate lost passing of process keyring ID in call_sbin_request_key()

In commit bb952bb9 there was the accidental
deletion of a statement from call_sbin_request_key() to render the process
keyring ID to a text string so that it can be passed to /sbin/request-key.

With gcc 4.6.0 this causes the following warning:

  CC      security/keys/request_key.o
security/keys/request_key.c: In function 'call_sbin_request_key':
security/keys/request_key.c:102:15: warning: variable 'prkey' set but not used

This patch reinstates that statement.

Without this statement, /sbin/request-key will get some random rubbish from the
stack as that parameter.
Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NJames Morris <jmorris@namei.org>
上级 94fd8405
......@@ -144,6 +144,7 @@ static int call_sbin_request_key(struct key_construction *cons,
prkey = 0;
if (cred->tgcred->process_keyring)
prkey = cred->tgcred->process_keyring->serial;
sprintf(keyring_str[1], "%d", prkey);
rcu_read_lock();
session = rcu_dereference(cred->tgcred->session_keyring);
......
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