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commit04aa64375fupstream. In case of Gen12 video and compute engines, TLB_INV registers are masked - to modify one bit, corresponding bit in upper half of the register must be enabled, otherwise nothing happens. CVE: CVE-2022-4139 Suggested-by: Chris Wilson <chris.p.wilson@intel.com> Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Fixes:7938d61591("drm/i915: Flush TLBs before releasing backing store") Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.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.