Haishuang Yan 01f5bffad5 ip6_tunnel: fix possible use-after-free on xmit
ip4ip6/ip6ip6 tunnels run iptunnel_handle_offloads on xmit which
can cause a possible use-after-free accessing iph/ipv6h pointer
since the packet will be 'uncloned' running pskb_expand_head if
it is a cloned gso skb.

Fixes: 0e9a709560db ("ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-26 14:17:44 -07:00
2019-07-16 12:21:41 -07:00
2019-07-11 15:40:06 -07:00
2019-07-22 09:08:38 -07:00
2019-07-20 09:34:55 -07:00
2019-07-18 09:36:51 -07:00
2019-07-20 09:34:55 -07:00
2019-06-18 14:37:27 +01:00
2019-07-19 12:22:04 -07:00
2019-03-10 17:48:21 -07:00
2019-07-21 14:05:38 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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