[lkml]   [2011]   [Jul]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] nconfig: prevent segfault on empty menu

    On Sat, Jul 9, 2011 at 10:04 PM, Andrej Gelenberg
    <> wrote:
    > Hello,
    > i found and fixed an NULL-dereference bug in nconf tool.
    > How to reproduce:
    > 1. $ make nconfig
    > 2. disable "Kernel hacking -> Debug Filesystem"
    > 3. go to "General setup -> GCOV-based kernel profiling" and hit F2
    > it should segfault
    > Fix: i have added some checks for "struct menu*" to be NULL before it
    > get dereferenced
    I am not a huge fan of this. The frontend should be careful not to try
    to request the visibility or the prompt of an invalid menu. Following
    this point of view, I would rather see assertion added than a test for
    NULL, and fix the frontend appropriately to catch those case. Said
    otherwise, there is no reason to apply a fix on the backend for an
    nconfig-only issue.

    - Arnaud

    > Regards,
    > Andrej Gelenberg

     \ /
      Last update: 2011-07-10 08:05    [W:0.019 / U:131.568 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site