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| author | Eric W. Biederman <ebiederm@xmission.com> | 2016-06-27 15:52:48 -0500 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2016-06-30 18:04:36 -0500 |
| commit | 37b11804ed1725dc2ea97be2236150210a69e9d5 (patch) | |
| tree | cc8feef112a36a4b9e10ac60d673000f7de3716a | |
| parent | a475acf01f79e89a1a5845733e10108d80f77188 (diff) | |
| download | linux-37b11804ed1725dc2ea97be2236150210a69e9d5.tar.bz2 | |
userns: Handle -1 in k[ug]id_has_mapping when !CONFIG_USER_NS
Refuse to admit any user namespace has a mapping of the INVALID_UID
and the INVALID_GID when !CONFIG_USER_NS.
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
| -rw-r--r-- | include/linux/uidgid.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h index 03835522dfcb..25e9d9216340 100644 --- a/include/linux/uidgid.h +++ b/include/linux/uidgid.h @@ -177,12 +177,12 @@ static inline gid_t from_kgid_munged(struct user_namespace *to, kgid_t kgid) static inline bool kuid_has_mapping(struct user_namespace *ns, kuid_t uid) { - return true; + return uid_valid(uid); } static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid) { - return true; + return gid_valid(gid); } #endif /* CONFIG_USER_NS */ |