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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-02-02 18:54:02 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-05-03 03:28:39 -0700 |
| commit | 9c806aa06f8e121c6058db8e8073798aa5c4355b (patch) | |
| tree | d55fb9702aa80c4fb38f0da504b18a720e91f9bb /kernel/sched | |
| parent | 76b6db010297d4928ab7b7e7c78dd982f413f0a4 (diff) | |
| download | linux-9c806aa06f8e121c6058db8e8073798aa5c4355b.tar.gz linux-9c806aa06f8e121c6058db8e8073798aa5c4355b.tar.bz2 linux-9c806aa06f8e121c6058db8e8073798aa5c4355b.zip | |
userns: Convert sched_set_affinity and sched_set_scheduler's permission checks
- Compare kuids with uid_eq
- kuid are uniuqe across all user namespaces so there is no longer the
need for a user_namespace comparison.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 96bff855b866..b189fecaef90 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4042,11 +4042,8 @@ static bool check_same_owner(struct task_struct *p) rcu_read_lock(); pcred = __task_cred(p); - if (cred->user_ns == pcred->user_ns) - match = (cred->euid == pcred->euid || - cred->euid == pcred->uid); - else - match = false; + match = (uid_eq(cred->euid, pcred->euid) || + uid_eq(cred->euid, pcred->uid)); rcu_read_unlock(); return match; } |