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-next>] [day] [month] [year] [list]
Date:	Mon, 20 Oct 2014 13:49:15 +0200
From:	Florian Westphal <fw@...len.de>
To:	<netdev@...r.kernel.org>
Cc:	edumazet@...gle.com, therbert@...gle.com
Subject: [PATCH v2 0/3] net: minor gso encapsulation fixes

The following series fixes a minor bug in the gso segmentation handlers
when encapsulation offload is used.

Theoretically this could cause kernel panic when the stack tries
to software-segment such a GRE offload packet, but it looks like there
is only one affected call site (tbf scheduler) and it handles NULL
return value.

I've included a followup patch to add IS_ERR_OR_NULL checks where needed.

While looking into this, I also found that size computation of the individual
segments is incorrect if skb->encapsulation is set.

Please see individual patches for delta vs. v1.

 core/skbuff.c                    |   13 ++++++++++---
 ipv4/af_inet.c                   |    2 +-
 ipv4/gre_offload.c               |    2 +-
 ipv4/ip_output.c                 |    2 +-
 ipv4/udp_offload.c               |    2 +-
 ipv6/ip6_offload.c               |    2 +-
 mpls/mpls_gso.c                  |    2 +-
 netfilter/nfnetlink_queue_core.c |    2 +-
 openvswitch/datapath.c           |    2 ++
 xfrm/xfrm_output.c               |    2 ++
 10 files changed, 21 insertions(+), 10 deletions(-)
--
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

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ