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[ Upstream commitc276a706ea] xfrm state selectors are matched against the inner-most flow which can be of any address family. Therefore middle states in nested configurations need to carry a wildcard selector in order to work at all. However, this is currently forbidden for transport-mode states. Fix this by removing the unnecessary check. Fixes:13996378e6("[IPSEC]: Rename mode to outer_mode and add inner_mode") Reported-by: David George <David.George@sophos.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Sasha Levin <sashal@kernel.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.