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commitc139c72e2bupstream. We were copying the last ciphertext block into the IV field for CBC before removing the DMA mapping of the output buffer with the result of the buffer sometime being out-of-sync cache wise and were getting intermittent cases of bad output IV. Fix it by moving the DMA buffer unmapping before the copy. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Fixes:00904aa0cd("crypto: ccree - fix iv handling") Cc: <stable@vger.kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.