diff options
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 9eb7fcab8df..ba0ae8eea6f 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -444,6 +444,15 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd, magic2 != LINUX_REBOOT_MAGIC2C)) return -EINVAL; + /* + * If pid namespaces are enabled and the current task is in a child + * pid_namespace, the command is handled by reboot_pid_ns() which will + * call do_exit(). + */ + ret = reboot_pid_ns(task_active_pid_ns(current), cmd); + if (ret) + return ret; + /* Instead of trying to make the power_off code look like * halt when pm_power_off is not set do it the easy way. */ @@ -1899,7 +1908,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, error = prctl_get_seccomp(); break; case PR_SET_SECCOMP: - error = prctl_set_seccomp(arg2); + error = prctl_set_seccomp(arg2, (char __user *)arg3); break; case PR_GET_TSC: error = GET_TSC_CTL(arg2); @@ -1970,6 +1979,16 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, error = put_user(me->signal->is_child_subreaper, (int __user *) arg2); break; + case PR_SET_NO_NEW_PRIVS: + if (arg2 != 1 || arg3 || arg4 || arg5) + return -EINVAL; + + current->no_new_privs = 1; + break; + case PR_GET_NO_NEW_PRIVS: + if (arg2 || arg3 || arg4 || arg5) + return -EINVAL; + return current->no_new_privs ? 1 : 0; default: error = -EINVAL; break; |