netdev - Re: eth0: hw csum failure

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: <20111205081741.738af1c0@nehalam.linuxnetplumber.net>
Date:	Mon, 5 Dec 2011 08:17:41 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Pavel Mateja <pavel@...safe.cz>
Cc:	netdev@...r.kernel.org
Subject: Re: eth0: hw csum failure


> If i did git bisect right it was caused by commit
> 4b275d7efa1c4412f0d572fcd7f78ed0919370b3
> bridge: Pseudo-header required for the checksum of ICMPv6
> 
> Problem disappears when I turn off HW checksum via ethtool.
> 
> Can anybody help?

Fixed in 3.1 (and queued for 3.0 stable).

commit fa2da8cdae1dd64f78fc915ca1d1a4a93c71e7cb
Author: stephen hemminger <shemminger@...tta.com>
Date:   Tue Nov 15 08:09:14 2011 +0000

    bridge: correct IPv6 checksum after pull
    
    Bridge multicast snooping of ICMPv6 would incorrectly report a checksum prob
    when used with Ethernet devices like sky2 that use CHECKSUM_COMPLETE.
    When bytes are removed from skb, the computed checksum needs to be adjusted.
    
    Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
    Tested-by: Martin Volf <martin.volf.42@...il.com>
    Signed-off-by: David S. Miller <davem@...emloft.net>
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html