From: Keith Owens <kaos@ocs.com.au>
To: linux-kernel@vger.kernel.org
Subject: Local DoS on single_open?
Date: Thu, 11 Sep 2003 14:42:13 +1000 [thread overview]
Message-ID: <3741.1063255333@kao2.melbourne.sgi.com> (raw)
single_open() requires the kernel to kmalloc a buffer which lives until
the userspace caller closes the file. What prevents a malicious user
opening the same /proc entry multiple times, allocating lots of kmalloc
space and causing a local DoS?
next reply other threads:[~2003-09-11 4:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-11 4:42 Keith Owens [this message]
2003-09-11 4:51 ` Local DoS on single_open? Nick Piggin
2003-09-11 7:04 ` Keith Owens
2003-09-11 7:29 ` viro
2003-09-11 4:55 ` viro
2003-09-11 7:26 ` Keith Owens
2003-09-11 7:32 ` viro
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