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The __is_valid_access() test for cb[] from62c7989b24("bpf: allow b/h/w/dw access for bpf's cb in ctx") was done unnecessarily complex, we can just simplify it the same way as recent fix from2d071c643f("bpf, trace: make ctx access checks more robust") did. Overflow can never happen as size is 1/2/4/8 depending on access. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> 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.