Re: [PATCH 6/9] user namespaces: convert all capable checks inkernel/sys.c

From: Andrew Morton
Date: Fri Feb 18 2011 - 19:02:19 EST


On Thu, 17 Feb 2011 15:03:42 +0000
"Serge E. Hallyn" <serge@xxxxxxxxxx> wrote:

> @@ -1177,8 +1189,11 @@ SYSCALL_DEFINE2(sethostname, char __user *, name, int, len)
> int errno;
> char tmp[__NEW_UTS_LEN];
>
> - if (!ns_capable(current->nsproxy->uts_ns->user_ns, CAP_SYS_ADMIN))
> + if (!ns_capable(current->nsproxy->uts_ns->user_ns, CAP_SYS_ADMIN)) {
> + printk(KERN_NOTICE "%s: did not have CAP_SYS_ADMIN\n", __func__);
> return -EPERM;
> + }
> + printk(KERN_NOTICE "%s: did have CAP_SYS_ADMIN\n", __func__);
> if (len < 0 || len > __NEW_UTS_LEN)
> return -EINVAL;
> down_write(&uts_sem);

Left over debugging printks?
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