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When modify QP is called on a shared QP update the security context for the real QP. When security is subsequently enforced the shared QP handles will be checked as well. Without this change shared QP handles get added to the port/pkey lists, which is a bug, because not all shared QP handles will be checked for access. Also the shared QP security context wouldn't get removed from the port/pkey lists causing access to free memory and list corruption when they are destroyed. Cc: stable@vger.kernel.org Fixes: d291f1a65232 ("IB/core: Enforce PKey security on QPs") Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.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.