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[ Upstream commit3d82875442] Change location of rdma_restrack_del() to fix the bug where task_struct was acquired but not released, causing to resource leak. ucma_create_id() { ucma_alloc_ctx(); rdma_create_user_id() { rdma_restrack_new(); rdma_restrack_set_name() { rdma_restrack_attach_task.part.0(); <--- task_struct was gotten } } ucma_destroy_private_ctx() { ucma_put_ctx(); rdma_destroy_id() { _destroy_id() <--- id_priv was freed } } } Fixes:889d916b6f("RDMA/core: Don't access cm_id after its destruction") Link: https://lore.kernel.org/r/073ec27acb943ca8b6961663c47c5abe78a5c8cc.1624948948.git.leonro@nvidia.com Reported-by: Pavel Skripkin <paskripkin@gmail.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.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.