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The scatterlist is reused by both sendmsg and sendfile. If a sendmsg of smaller number of pages is followed by a sendfile of larger number of pages, the scatterlist may be too short, resulting in a crash in gcm_encrypt. Add sg_unmark_end to make the list the correct length. tls_sw_sendmsg already calls sg_unmark_end correctly when it allocates memory in alloc_sg, or in zerocopy_from_iter. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.