linux-kernel - Simple kernel attack using socketpair. easy, 100% reproductiblle, works under guest. no way to protect :(

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Message-ID: <AANLkTikCeddPFRGojPGuB6oq3xGYgovtm8r4=WhjEDpe@mail.gmail.com>
Date:	Thu, 25 Nov 2010 10:57:58 +0500
From:	Марк Коренберг 
	<socketpair@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Simple kernel attack using socketpair. easy, 100% reproductiblle,
 works under guest. no way to protect :(

Simple kernel attack using socketpair. easy, 100% reproductiblle,
works under guest. no way to protect :(

See source attached.

Process become in state 'Running' but not killalble via kill -KILL.

eat 100% CPU, eat all available internal  file descriptors  in kernel :(

-- 
Segmentation fault

View attachment "sp.c" of type "text/x-csrc" (919 bytes)