Jason Gunthorpe
f85d05c0a5
[ Upstream commitdd37d2f59e] rdma_detroy_id() cannot be called under &lock - we must instead keep the error'd ID around until &lock can be released, then destroy it. This is complicated by the usual way listen IDs are destroyed through cma_process_remove() which can run at any time and will asynchronously destroy the same ID. Remove the ID from visiblity of cma_process_remove() before going down the destroy path outside the locking. Fixes:c80a0c52d8("RDMA/cma: Add missing error handling of listen_id") Link: https://lore.kernel.org/r/20201118133756.GK244516@ziepe.ca Reported-by: syzbot+1bc48bf7f78253f664a9@syzkaller.appspotmail.com Reviewed-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.