diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/capability.c | 14 | ||||
| -rw-r--r-- | kernel/ptrace.c | 4 | ||||
| -rw-r--r-- | kernel/sched.c | 2 |
3 files changed, 3 insertions, 17 deletions
diff --git a/kernel/capability.c b/kernel/capability.c index 47626446c39a..74fb3b603045 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -409,20 +409,6 @@ bool capable(int cap) EXPORT_SYMBOL(capable); /** - * task_ns_capable - Determine whether current task has a superior - * capability targeted at a specific task's user namespace. - * @t: The task whose user namespace is targeted. - * @cap: The capability in question. - * - * Return true if it does, false otherwise. - */ -bool task_ns_capable(struct task_struct *t, int cap) -{ - return ns_capable(task_cred_xxx(t, user)->user_ns, cap); -} -EXPORT_SYMBOL(task_ns_capable); - -/** * nsown_capable - Check superior capability to one's own user_ns * @cap: The capability in question * diff --git a/kernel/ptrace.c b/kernel/ptrace.c index a70d2a5d8c7b..210bbf045ee9 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -196,7 +196,7 @@ ok: smp_rmb(); if (task->mm) dumpable = get_dumpable(task->mm); - if (!dumpable && !task_ns_capable(task, CAP_SYS_PTRACE)) + if (!dumpable && !ns_capable(task_user_ns(task), CAP_SYS_PTRACE)) return -EPERM; return security_ptrace_access_check(task, mode); @@ -266,7 +266,7 @@ static int ptrace_attach(struct task_struct *task, long request, task->ptrace = PT_PTRACED; if (seize) task->ptrace |= PT_SEIZED; - if (task_ns_capable(task, CAP_SYS_PTRACE)) + if (ns_capable(task_user_ns(task), CAP_SYS_PTRACE)) task->ptrace |= PT_PTRACE_CAP; __ptrace_link(task, current); diff --git a/kernel/sched.c b/kernel/sched.c index b50b0f0c9aa9..5670028a9c16 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5409,7 +5409,7 @@ long sched_setaffinity(pid_t pid, const struct cpumask *in_mask) goto out_free_cpus_allowed; } retval = -EPERM; - if (!check_same_owner(p) && !task_ns_capable(p, CAP_SYS_NICE)) + if (!check_same_owner(p) && !ns_capable(task_user_ns(p), CAP_SYS_NICE)) goto out_unlock; retval = security_task_setscheduler(p); |