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commit8af1c6fbd9upstream. When the forceadd option is enabled, the hash:* types should find and replace the first entry in the bucket with the new one if there are no reuseable (deleted or timed out) entries. However, the position index was just not set to zero and remained the invalid -1 if there were no reuseable entries. Reported-by: syzbot+6a86565c74ebe30aea18@syzkaller.appspotmail.com Fixes:23c42a403a("netfilter: ipset: Introduction of new commands and protocol version 7") Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org> 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.