On Fri, Nov 18, 2016 at 09:22:42PM -0500, Valdis.Kletnieks@xxxxxx wrote:
> On Fri, 18 Nov 2016 12:24:37 +0100, Dmitry Vyukov said:
> > WARNINGs mean kernel bugs.
> > The one in ucma_write() points to user programming error
> > or a malicious attempt. This is not a kernel bug, remove it.
>
> > - if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
> > + if (!ib_safe_file_access(filp))
> > return -EACCES;
>
> In that case, wouldn't this be better?
>
> if (!ib_safe_file_access(filp)) {
> printk_once("Process %d (%s) tried to do something hinky", pid, comm);
> return _EACCESS;
> }
>
> so the sysadmin becomes aware of the malicious attempt?
Yes please
Jason
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