[libvirt] [PATCH] nwfilter: Fix random index in virNWFilterRuleDefDetailsFormat

Matthias Bolte matthias.bolte at googlemail.com
Sun Apr 4 14:14:58 UTC 2010


2010/4/4 Stefan Berger <stefanb at us.ibm.com>:
>
> libvir-list-bounces at redhat.com wrote on 04/03/2010 06:55:56 PM:
>
>> [image removed]
>> >
>> An uninitialized int value was used to index an array. This can
>> result in a segfault in nwfilterxml2xmltest.
>> ---
>>  src/conf/nwfilter_conf.c |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/src/conf/nwfilter_conf.c b/src/conf/nwfilter_conf.c
>> index 08934fb..7c71ece 100644
>> --- a/src/conf/nwfilter_conf.c
>> +++ b/src/conf/nwfilter_conf.c
>> @@ -2375,7 +2375,7 @@ virNWFilterRuleDefDetailsFormat(virConnectPtr conn,
>>                                  const virXMLAttr2Struct *att,
>>                                  virNWFilterRuleDefPtr def)
>>  {
>> -    int i, j;
>> +    int i = 0, j;
>>      bool typeShown = 0;
>>      bool neverShown = 1;
>>      enum match {
>
> ACK. Please push.
>
> Is it my version of gcc or libvirt compiler flags that fail to tell me about
> a 'possibly uninitialized variable'?
>
> Regards,
>    Stefan
>

I didn't get a compiler warning about this either. I found it because
of the segfault in the test case.

Thanks. pushed.

Matthias




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