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    SubjectRe: Local DoS on single_open?
    On Thu, 11 Sep 2003 14:51:09 +1000, 
    Nick Piggin <> 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 has no effect on kmalloc usage.

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