Re: Netfilter: kernel panic with REDIRECT target. (2.6.23 and 2.6.23.8)

From: Patrick McHardy <redacted>
Date: Tue, 20 Nov 2007 13:24:17 +0100

I now understand whats happening:

- new connection is allocated without helper
- connection is REDIRECTed to localhost
- nf_nat_setup_info adds NAT extension, but doesn't initialize it yet
- nf_conntrack_alter_reply performs a helper lookup based on the
   new tuple, finds the SIP helper and allocates a helper extension,
   causing reallocation because of too little space
- nf_nat_move_storage is called with the uninitialized nat extension

So your fix is entirely correct, thanks a lot :)

Great, I've applied Evgeniy's patch.