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05cd823863
Check the return value of nla_nest_start(). When starting the entry level nested attributes, if the tailroom of socket buffer is insufficient to store the attribute header and payload, the return value will be NULL. There is, however, no real bug here since if the skb is full nla_put_be16() will fail as well and we'll error out. Signed-off-by: Li Zhong <floridsleeves@gmail.com> Link: https://lore.kernel.org/r/20220921181716.1629541-1-floridsleeves@gmail.com Signed-off-by: Jakub Kicinski <kuba@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.