diff options
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 8d1142a..f89cca5 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1807,6 +1807,9 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, error = PR_MCE_KILL_DEFAULT; break; case PR_SET_TIMERSLACK_PID: + if (current->pid != (pid_t)arg3 && + !capable(CAP_SYS_NICE)) + return -EPERM; rcu_read_lock(); tsk = find_task_by_pid_ns((pid_t)arg3, &init_pid_ns); if (tsk == NULL) { |