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21b4fa3bff
[ Upstream commit 5124bc96162667766f6120b19f57a640c2eccb2a ]
Because hardware will read in multiples of 4 SG entries, ensure
the allocated length is always padded. This was already done
by some callers of ahash_edesc_alloc, but ahash_digest was conspicuously
missing.
In any case, doing it in the allocation function ensures that the
memory is always there.
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Fixes: a5e5c13398 ("crypto: caam - fix S/G table passing page boundary")
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.