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iwlagn_check_ratid_empty takes the tid as a parameter, but it doesn't check that it is not IWL_TID_NON_QOS. Since IWL_TID_NON_QOS = 8 and iwl_priv::tid_data is an array with 8 entries, accessing iwl_priv::tid_data[IWL_TID_NON_QOS] is a bad idea. This happened in iwlagn_rx_reply_tx. Since iwlagn_check_ratid_empty is relevant only to check whether we can open A-MPDU, this flow is irrelevant if tid is IWL_TID_NON_QOS. Call iwlagn_check_ratid_empty only inside the if (tid != IWL_TID_NON_QOS) a few lines earlier in the function. Cc: <stable@vger.kernel.org> Reported-by: Seraphime Kirkovski <kirkseraph@gmail.com> Tested-by: Seraphime Kirkovski <kirkseraph@gmail.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@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.