On Sun, Sep 09, 2012 at 04:16:58PM +0200, Sasha Levin wrote: > device_write only checks whether the request size is big enough, but it > doesn't > check if the size is too big. > > At that point, it also tries to allocate as much memory as the user has > requested > even if it's too much. This can lead to OOM killer kicking in, or memory > corruption > if (count + 1) overflows.
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