Re: [libvirt] [PATCH] nwfilter: Fix possible segfault on sometimes consumed variable

The virNWFilterIPAddrMapAddIPAddr code can consume the @addr parameter on success when the @ifname is found in the ipAddressMap->hashTable hash table in the call to virNWFilterVarValueAddValue; however, if not found in the hash table, then @addr is formatted into a @val which is stored in the table and on return the caller would be expected to free @addr. Thus, the caller has no way to determine on success whether @addr was consumed, so in order to fix this create a @tmp variable which will be stored/consumed when virNWFilterVarValueAddValue succeeds. That way the caller can free @addr whether the function returns success or failure. Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt;