netdev - Re: [PATCH net V2 1/1] net/smc: take sock lock in smc

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] [day] [month] [year] [list]

Message-Id: <20180716.144549.1700210071419801130.davem@davemloft.net>
Date:   Mon, 16 Jul 2018 14:45:49 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     ubraun@...ux.ibm.com
Cc:     netdev@...r.kernel.org, linux-s390@...r.kernel.org,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        raspl@...ux.ibm.com, linux-kernel@...r.kernel.org,
        eric.dumazet@...il.com, lifeasageek@...il.com, sbrivio@...hat.com
Subject: Re: [PATCH net V2 1/1] net/smc: take sock lock in smc_ioctl()

From: Ursula Braun <ubraun@...ux.ibm.com>
Date: Mon, 16 Jul 2018 13:56:52 +0200

> From: Ursula Braun <ursula.braun@...ux.ibm.com>
> 
> SMC ioctl processing requires the sock lock to work properly in
> all thinkable scenarios.
> Problem has been found with RaceFuzzer and fixes:
>    KASAN: null-ptr-deref Read in smc_ioctl
> 
> Reported-by: Byoungyoung Lee <lifeasageek@...il.com>
> Reported-by: syzbot+35b2c5aa76fd398b9fd4@...kaller.appspotmail.com
> Signed-off-by: Ursula Braun <ubraun@...ux.ibm.com>

Applied and queued up for -stable.