Bug 5055 - iptables returns "invalid pointer" when using host name in the rule
Summary: iptables returns "invalid pointer" when using host name in the rule
Status: CLOSED FIXED
Alias: None
Product: Sisyphus
Classification: Development
Component: iptables (show other bugs)
Version: unstable
Hardware: all Linux
: P2 normal
Assignee: Alexey Voinov
QA Contact: qa-sisyphus
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2004-08-24 11:37 MSD by dd
Modified: 2005-07-13 15:46 MSD (History)
3 users (show)

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Description dd 2004-08-24 11:37:53 MSD 
iptables works fine but returns "invalid pointer" when the rule contains host
name which resolves to multiple addresses.
Steps to Reproduce:
$ host rbc.ru
rbc.ru has address 194.186.36.175
rbc.ru has address 194.186.36.178
rbc.ru has address 62.118.249.66
rbc.ru has address 62.118.249.80
rbc.ru has address 194.186.36.150
$ sudo iptables -A FORWARD -s 192.168.0.55 -d rbc.ru -j ACCEPT
Actual Results:  
free(): invalid pointer 0x804c0a4!
$ sudo service iptables status | grep 55
ACCEPT     all  --  192.168.0.55         62.118.249.80
ACCEPT     all  --  192.168.0.55         194.186.36.150
ACCEPT     all  --  192.168.0.55         194.186.36.175
ACCEPT     all  --  192.168.0.55         194.186.36.178
ACCEPT     all  --  192.168.0.55         62.118.249.66

Expected Results:  
$ sudo service iptables status | grep 55
ACCEPT     all  --  192.168.0.55         62.118.249.80
ACCEPT     all  --  192.168.0.55         194.186.36.150
ACCEPT     all  --  192.168.0.55         194.186.36.175
ACCEPT     all  --  192.168.0.55         194.186.36.178
ACCEPT     all  --  192.168.0.55         62.118.249.66
Comment 1 Alexey Voinov 2004-09-08 16:18:19 MSD 
fixed in iptables-1.2.11-alt2