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| author | David Howells <dhowells@redhat.com> | 2008-11-10 19:00:05 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-10 13:20:57 -0800 |
| commit | 1f8f5cf6e4f038552a3e47b66085452c08556d71 (patch) | |
| tree | ccbfebc2fd565b8a979bde1f50d58b32328e4ddf /security | |
| parent | 3ad4f597058301c97f362e500a32f63f5c950a45 (diff) | |
| download | linux-1f8f5cf6e4f038552a3e47b66085452c08556d71.tar.gz linux-1f8f5cf6e4f038552a3e47b66085452c08556d71.tar.bz2 linux-1f8f5cf6e4f038552a3e47b66085452c08556d71.zip | |
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.h | 1 | ||||
| -rw-r--r-- | security/keys/process_keys.c | 2 | ||||
| -rw-r--r-- | security/keys/request_key.c | 4 |
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); |