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Laszlo Ersek says: ==================== tun/tap: set sk_uid from current_fsuid() The original patches fixing CVE-2023-1076 are incorrect in my opinion. This small series fixes them up; see the individual commit messages for explanation. I have a very elaborate test procedure demonstrating the problem for both tun and tap; it involves libvirt, qemu, and "crash". I can share that procedure if necessary, but it's indeed quite long (I wrote it originally for our QE team). The patches in this series are supposed to "re-fix" CVE-2023-1076; given that said CVE is classified as Low Impact (CVSSv3=5.5), I'm posting this publicly, and not suggesting any embargo. Red Hat Product Security may assign a new CVE number later. I've tested the patches on top of v6.5-rc4, with "crash" built at commit c74f375e0ef7. Cc: Eric Dumazet <edumazet@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Pietro Borrello <borrello@diag.uniroma1.it> Cc: netdev@vger.kernel.org Cc: stable@vger.kernel.org ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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.