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commitbcf141b2ebupstream. On egress side, xfrm lookup is called from __gre6_xmit() with the fl6_gre_key field not initialized leading to policies selectors check failure. Consequently, gre packets are sent without encryption. On ingress side, INET6_PROTO_NOPOLICY was set, thus packets were not checked against xfrm policies. Like for egress side, fl6_gre_key should be correctly set, this is now done in decode_session6(). Fixes:c12b395a46("gre: Support GRE over IPv6") Cc: stable@vger.kernel.org Signed-off-by: Ghalem Boudour <ghalem.boudour@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.