Messages in this thread | | | From | Keith Owens <> | Subject | Re: Local DoS on single_open? | Date | Thu, 11 Sep 2003 17:04:48 +1000 |
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On Thu, 11 Sep 2003 14:51:09 +1000, Nick Piggin <piggin@cyberone.com.au> wrote: >Keith Owens wrote: > >>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? >> >> > >ulimit?
ulimit has no effect on kmalloc usage.
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