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[ Upstream commitb540de9e3b] Fix refcount leak in `smb2_set_path_attr` when path conversion fails. Function `cifs_get_writable_path` returns `cfile` with its reference counter `cfile->count` increased on success. Function `smb2_compound_op` would decrease the reference counter for `cfile`, as stated in its comment. By calling `smb2_rename_path`, the reference counter of `cfile` would leak if `cifs_convert_path_to_utf16` fails in `smb2_set_path_attr`. Fixes:8de9e86c67("cifs: create a helper to find a writeable handle by path name") Acked-by: Henrique Carvalho <henrique.carvalho@suse.com> Signed-off-by: Shuhao Fu <sfual@cse.ust.hk> Signed-off-by: Steve French <stfrench@microsoft.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 reStructuredText 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.