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11f46ea981
We're going to send an RST due to invalid syn packet which is already checked whether 1) it is in sequence, 2) it is a retransmitted skb. As RFC 793 says, if the state of socket is not CLOSED/LISTEN/SYN-SENT, then we should send an RST when receiving bad syn packet: "fourth, check the SYN bit,...If the SYN is in the window it is an error, send a reset" Signed-off-by: Jason Xing <kernelxing@tencent.com> Link: https://lore.kernel.org/r/20240510122502.27850-6-kerneljasonxing@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 reStructuredText 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.