netdev - Re: REGRESSION in nfnetlink on 3.18.x (bisected)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20141222115607.GA4961@salvia>
Date:	Mon, 22 Dec 2014 12:56:07 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Andre Tomt <andre@...t.net>
Cc:	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: REGRESSION in nfnetlink on 3.18.x (bisected)

On Sun, Dec 21, 2014 at 12:33:51AM +0100, Andre Tomt wrote:
> On at least Ubuntu 14.04 LTS and Ubuntu 14.10 "conntrack -E" has
> started failing with Linux 3.18.x. conntrack -L still works.
> 
> 14.04 and 14.10 ships conntrack-utils version 1.4.1, but 1.4.2 does
> not work either.
> 
> It fails with:
> ># conntrack -E
> >conntrack v1.4.2 (conntrack-tools): Can't open handler
> 
> strace shows:
> >bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
> >getsockname(3, {sa_family=AF_NETLINK, pid=14092, groups=00000000}, [12]) = 0
> >bind(3, {sa_family=AF_NETLINK, pid=14092, groups=00000007}, 12) = -1 EINVAL (Invalid argument)
> 
> Reverting 97840cb67ff5ac8add836684f011fd838518d698 - netfilter:
> nfnetlink: fix insufficient validation in nfnetlink_bind

Could you give a test to this patch? Thanks.

View attachment "0001-netlink-fix-wrong-subscription-bitmask-to-group-mapp.patch" of type "text/x-diff" (1828 bytes)