A recent change split the insertion loop into two parts. The first part accessed bytes 0, 1, ... (rxlen - 2), and the second part by mistake took offset `rxlen` instead of the correct `rxlen - 1`. So one byte was not stored, and the final access wrote past the end of the rx_buf. Fixes: 9c12d739d69b (tty: max310x: Split uart characters insertion loop) Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Link: https://lore.kernel.org/r/13ea227620aaad8a7231d42ed03a8508297d4eb3.1567027079.git.jan.kundrat@cesnet.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
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