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[ Upstream commit1731160ff7] Set to zero the context buffers containing the DH key before they are freed. This is a defense in depth measure that avoids keys to be recovered from memory in case the system is compromised between the free of the buffer and when that area of memory (containing keys) gets overwritten. Cc: stable@vger.kernel.org Fixes:c9839143eb("crypto: qat - Add DH support") Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Adam Guerin <adam.guerin@intel.com> Reviewed-by: Wojciech Ziemba <wojciech.ziemba@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@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 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.