lkml.org 
[lkml]   [2003]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    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.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:48    [W:0.022 / U:0.348 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site