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nl80211_nan_add_func() does not check if the required attribute NL80211_NAN_FUNC_FOLLOW_UP_DEST is present when processing NL80211_CMD_ADD_NAN_FUNCTION request. This request can be issued by users with CAP_NET_ADMIN privilege and may result in NULL dereference and a system crash. Add a check for the required attribute presence. Signed-off-by: Hao Chen <flank3rsky@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.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.