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[ Upstream commite9ea0b30ad] The change from kcalloc() to kvmalloc() means that arg->nr_pages might now be large enough that the "args->nr_pages << PAGE_SHIFT" can result in an integer overflow. Fixes:b3f7931f5c("xen/gntdev: switch from kcalloc() to kvcalloc()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/YxDROJqu/RPvR0bi@kili Signed-off-by: Juergen Gross <jgross@suse.com> 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.