netdev - Re: [PATCH] af_netlink: give correct bounds to dump skb for NLMSG

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]

Date:   Wed, 8 Nov 2017 15:03:07 +0900
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Johannes Berg <johannes@...solutions.net>,
        David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     "Jason A. Donenfeld" <Jason@...c4.com>
Subject: Re: [PATCH] af_netlink: give correct bounds to dump skb for NLMSG_DONE

By the way, in case you're curious, here's the {up,down,cross}stream
WireGuard commit that works around it via its compat layer (a rat's
nest of hideous backports for all the weird kernels people want
WireGuard to run on, which I cannot wait to remove):

https://git.zx2c4.com/WireGuard/commit/?id=f689ea7acc23dc8e0968699d964ee382b04fbbe4

Particularly relavent here is the last chunk of that, which is part of
the automated test suite, which reproduces the issue by finding the
tightest possible packing.