From: Phil Sutter <phil@nwl.cc>
To: Patrick McHardy <kaber@trash.net>
Cc: pablo@netfilter.org, netdev@vger.kernel.org
Subject: ip6t_SYNPROXY crashes kernel
Date: Tue, 28 Jul 2015 00:27:16 +0200 [thread overview]
Message-ID: <20150727222716.GG20951@orbit.nwl.cc> (raw)
Hi,
When synproxy_send_server_ack() calls synproxy_send_tcp(), it passes
NULL as third parameter (struct nf_conntrack *nfct). And the first thing
synproxy_send_tcp() does, is dereference it:
| struct net *net = nf_ct_net((struct nf_conn *)nfct);
I could not find a commit leading to this breakage in the commit log,
which makes me doubt ip6t_SYNPROXY has ever worked at all.
If you need one, I have a reproducer at hand. (Though I would want to
strip it down a bit first.) Just let me know.
Cheers, Phil
next reply other threads:[~2015-07-27 22:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-27 22:27 Phil Sutter [this message]
2015-08-01 12:54 ` ip6t_SYNPROXY crashes kernel Patrick McHardy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150727222716.GG20951@orbit.nwl.cc \
--to=phil@nwl.cc \
--cc=kaber@trash.net \
--cc=netdev@vger.kernel.org \
--cc=pablo@netfilter.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).