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authorDavid Howells <dhowells@redhat.com>2008-11-10 19:00:05 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-10 13:20:57 -0800
commit1f8f5cf6e4f038552a3e47b66085452c08556d71 (patch)
treeccbfebc2fd565b8a979bde1f50d58b32328e4ddf /security
parent3ad4f597058301c97f362e500a32f63f5c950a45 (diff)
downloadlinux-linaro-stable-1f8f5cf6e4f038552a3e47b66085452c08556d71.tar.gz
KEYS: Make request key instantiate the per-user keyrings
Make request_key() instantiate the per-user keyrings so that it doesn't oops if it needs to get hold of the user session keyring because there isn't a session keyring in place. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Steve French <smfrench@gmail.com> Tested-by: Rutger Nijlunsing <rutger.nijlunsing@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
-rw-r--r--security/keys/internal.h1
-rw-r--r--security/keys/process_keys.c2
-rw-r--r--security/keys/request_key.c4
3 files changed, 6 insertions, 1 deletions
diff --git a/security/keys/internal.h b/security/keys/internal.h
index b39f5c2e2c4b..239098f0fd76 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -107,6 +107,7 @@ extern key_ref_t search_process_keyrings(struct key_type *type,
extern struct key *find_keyring_by_name(const char *name, bool skip_perm_check);
+extern int install_user_keyrings(struct task_struct *tsk);
extern int install_thread_keyring(struct task_struct *tsk);
extern int install_process_keyring(struct task_struct *tsk);
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 5be6d018759a..45b240af6dbe 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -40,7 +40,7 @@ struct key_user root_key_user = {
/*
* install user and user session keyrings for a particular UID
*/
-static int install_user_keyrings(struct task_struct *tsk)
+int install_user_keyrings(struct task_struct *tsk)
{
struct user_struct *user = tsk->user;
struct key *uid_keyring, *session_keyring;
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index ba32ca6469bd..abea08f87fe2 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -74,6 +74,10 @@ static int call_sbin_request_key(struct key_construction *cons,
kenter("{%d},{%d},%s", key->serial, authkey->serial, op);
+ ret = install_user_keyrings(tsk);
+ if (ret < 0)
+ goto error_alloc;
+
/* allocate a new session keyring */
sprintf(desc, "_req.%u", key->serial);