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[ Upstream commitaf84f9e447] nft can perform merging of adjacent payload requests. This means that: ether saddr 00:11 ... ether type 8021ad ... is a single payload expression, for 8 bytes, starting at the ethernet source offset. Check that offset+length is fully within the source/destination mac addersses. This bug prevents 'ether type' from matching the correct h_proto in case vlan tag got stripped. Fixes:de6843be30("netfilter: nft_payload: rebuild vlan header when needed") Reported-by: David Ward <david.ward@ll.mit.edu> Signed-off-by: Florian Westphal <fw@strlen.de> Stable-dep-of: 33c563ebf8d3 ("netfilter: nft_payload: skbuff vlan metadata mangle support") 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.