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There are multiple bugs caused by threads racing in keychord_write. 1) Threads racing through this function can cause the same element to be added to a linked list twice (multiple calls to input_register_handler() for the same input_handler struct). And the races can also cause an element in a linked list that doesn't exist attempted to be removed (multiple calls to input_unregister_handler() with the same input_handler struct). 2) The races can also cause duplicate kfree's of the keychords struct. Bug: 64133562 Bug: 63974334 Change-Id: I6329a4d58c665fab5d3e96ef96391e07b4941e80 Signed-off-by: Mohan Srinivasan <srmohan@google.com>
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.