userns: Convert security/keys to the new userns infrastructure
- Replace key_user ->user_ns equality checks with kuid_has_mapping checks.
- Use from_kuid to generate key descriptions
- Use kuid_t and kgid_t and the associated helpers instead of uid_t and gid_t
- Avoid potential problems with file descriptor passing by displaying
keys in the user namespace of the opener of key status proc files.
Cc: linux-security-module@vger.kernel.org
Cc: keyrings@linux-nfs.org
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 000e750..66e2118 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -139,8 +139,8 @@
goto error_link;
/* record the UID and GID */
- sprintf(uid_str, "%d", cred->fsuid);
- sprintf(gid_str, "%d", cred->fsgid);
+ sprintf(uid_str, "%d", from_kuid(&init_user_ns, cred->fsuid));
+ sprintf(gid_str, "%d", from_kgid(&init_user_ns, cred->fsgid));
/* we say which key is under construction */
sprintf(key_str, "%d", key->serial);
@@ -442,7 +442,7 @@
kenter("");
- user = key_user_lookup(current_fsuid(), current_user_ns());
+ user = key_user_lookup(current_fsuid());
if (!user)
return ERR_PTR(-ENOMEM);