netdev - Re: [Intel-wired-lan] Possible read-modify-write bug in ixgbe x550 phy setup

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 for Android: free password hash cracker in your pocket

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

Date:   Fri, 2 Feb 2018 13:21:38 -0800
From:   Shannon Nelson <shannon.nelson@...cle.com>
To:     "Tantilov, Emil S" <emil.s.tantilov@...el.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "Greenwalt, Paul" <paul.greenwalt@...el.com>
Subject: Re: [Intel-wired-lan] Possible read-modify-write bug in ixgbe x550
 phy setup

On 2/2/2018 1:08 PM, Tantilov, Emil S wrote:
> Just FYI - we looked at the reads and confirmed that there is no functional
> bug in the code because as it happens the CX1/SR bits is the only bits that
> are read and set and as such we don't lose any data. This of course means
> that the read is not needed and we'll just remove it.

Great - I'm glad to see it happens to work.  You might think about 
keeping that read for future safety and fixing the '=', but I'm not 
going to worry about it.

sln