netdev - Re: [PATCH] ipv4: ipv6: initialize treq->txhash in cookie_v[46]

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: <1500313379.5566.21.camel@edumazet-glaptop3.roam.corp.google.com>
Date:   Mon, 17 Jul 2017 10:42:59 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Alexander Potapenko <glider@...gle.com>
Cc:     dvyukov@...gle.com, kcc@...gle.com, edumazet@...gle.com,
        davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv4: ipv6: initialize treq->txhash in
 cookie_v[46]_check()

On Mon, 2017-07-17 at 12:35 +0200, Alexander Potapenko wrote:
> KMSAN reported use of uninitialized memory in skb_set_hash_from_sk(),
> which originated from the TCP request socket created in
> cookie_v6_check():

> Similar error is reported for cookie_v4_check().
> 
> Signed-off-by: Alexander Potapenko <glider@...gle.com>
> Fixes: 58d607d3e52f ("tcp: provide skb->hash to synack packets")

Acked-by: Eric Dumazet <edumazet@...gle.com>

Thanks !