[libvirt] [PATCH] nwfilter: fix crash when adding non-existing nwfilter

Pavel Hrdina phrdina at redhat.com
Tue Dec 2 10:12:43 UTC 2014


On 12/01/2014 10:33 PM, Eric Blake wrote:
> On 12/01/2014 09:23 AM, Pavel Hrdina wrote:
>> Adding non-existing nwfilter to a network interface device without any
>> nwfilter specified will crash libvirt daemon with segfault. The reason is
>> that the nwfilter is not found an libvirt will try to restore old
>> nwfilter configuration but there is no nwfilter specified.
>>
>> Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
>> ---
>>   src/conf/nwfilter_conf.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> ACK

Thanks, pushed now.

Pavel

>
>>
>> diff --git a/src/conf/nwfilter_conf.c b/src/conf/nwfilter_conf.c
>> index 074d745..317792e 100644
>> --- a/src/conf/nwfilter_conf.c
>> +++ b/src/conf/nwfilter_conf.c
>> @@ -2778,7 +2778,7 @@ virNWFilterObjFindByName(virNWFilterObjListPtr nwfilters, const char *name)
>>
>>       for (i = 0; i < nwfilters->count; i++) {
>>           virNWFilterObjLock(nwfilters->objs[i]);
>> -        if (STREQ(nwfilters->objs[i]->def->name, name))
>> +        if (STREQ_NULLABLE(nwfilters->objs[i]->def->name, name))
>>               return nwfilters->objs[i];
>>           virNWFilterObjUnlock(nwfilters->objs[i]);
>>       }
>>
>




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