svn commit: r233296 - head/lib/libc/gen
Sergey Kandaurov
pluknet at freebsd.org
Tue Apr 17 06:59:33 UTC 2012
On 14 April 2012 15:31, Jeremie Le Hen <jeremie at le-hen.org> wrote:
> Hi Sergey,
>
> On Thu, Mar 22, 2012 at 09:42:28AM +0000, Sergey Kandaurov wrote:
>> Author: pluknet
>> Date: Thu Mar 22 09:42:27 2012
>> New Revision: 233296
>> URL: http://svn.freebsd.org/changeset/base/233296
>>
>> Log:
>> Prevent fs_file NULL pointer dereference in fixfsfile() uncovered after r1.5
>> when passing damaged user-supplied fstab file data.
>>
>> MFC after: 1 week
>>
>> Modified:
>> head/lib/libc/gen/fstab.c
>>
>> Modified: head/lib/libc/gen/fstab.c
>> ==============================================================================
>> --- head/lib/libc/gen/fstab.c Thu Mar 22 09:29:07 2012 (r233295)
>> +++ head/lib/libc/gen/fstab.c Thu Mar 22 09:42:27 2012 (r233296)
>> @@ -91,7 +91,7 @@ fixfsfile()
>> struct stat sb;
>> struct statfs sf;
>>
>> - if (strcmp(_fs_fstab.fs_file, "/") != 0)
>> + if (_fs_fstab.fs_file != NULL &&strcmp(_fs_fstab.fs_file, "/") != 0)
>> return;
>> if (statfs("/", &sf) != 0)
>> return;
>
> Would you mind MFC'ing this please? It bit me today :).
>
> Thanks.
Ah, sure. I will today.
[I was AFK for some time, and now I'm here again.]
--
wbr,
pluknet
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