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commit2a9de3af21upstream. The vti6_rcv function performs some tests on the retrieved tunnel including checking the IP protocol, the XFRM input policy, the source and destination address. In all but one places the skb is released in the error case. When the input policy check fails the network packet is leaked. Using the same goto-label discard in this case to fix this problem. Fixes:ed1efb2aef("ipv6: Add support for IPsec virtual tunnel interfaces") Signed-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com> Reviewed-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.