netdev - Re: [0/2] Fix problems with with IFLA_VF

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]

Date:	Thu, 24 Apr 2014 13:53:23 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	david@...son.dropbear.id.au
Cc:	netdev@...r.kernel.org, ssujith@...co.com, neepatel@...co.com,
	benve@...co.com, ben@...adent.org.uk, govindarajulu90@...il.com,
	gregory.v.rose@...el.com
Subject: Re: [0/2] Fix problems with with IFLA_VF_PORTS (v2)

From: David Gibson <david@...son.dropbear.id.au>
Date: Thu, 24 Apr 2014 10:22:34 +1000

> I've had a customer encounter a problem with getifaddrs(3) freezing up
> on a system with a Cisco enic device.
> 
> I've discovered that the problem is caused by an enic device with a
> large number of SR-IOV virtual functions overflowing the normal sized
> packet buffer for netlink, leading to interfaces not being reported
> from an RTM_GETLINK request.
> 
> The first patch here just makes the problem easier to locate if it
> occurs again in a different way, by adding a WARN_ON() when we run out
> of room in a netlink packet in this manner.
> 
> The second patch actually fixes the problem, by only reporting
> IFLA_VF_PORTS information when the RTEXT_FILTER_VF flag is specified.
> 
> v2: Corrected some CodingStyle problems

Series applied to 'net' and queued up for -stable.

Thanks!
--
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