Re: [PATCH -v3.1 2/2] printk: Add kernel parameter to control writes to /dev/kmsg

[Borislav Petkov]

On Wed, Jul 06, 2016 at 01:52:11PM -0400, Steven Rostedt wrote:
> Hmm, this does nothing to stop user space from doing the following:
> 
> while :; do echo '5,0,0,-;hello' > /dev/kmsg; done

I wouldn't worry too much if /dev/kmsg has root:root perms elsewhere
too, like it is the case in my guest here:

crw-r--r-- 1 root root 1, 11 Jul  6 22:28 /dev/kmsg

root can shoot herself in the foot in countless ways anyway.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.