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SubjectRe: Local DoS on single_open?
Date
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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