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commit 1fe4a44b7fa3955bcb7b4067c07b778fe90d8ee7 upstream. The response buffer for the CREATE request handled by smb311_posix_mkdir() is leaked on the error path (goto err_free_rsp_buf) because the structure pointer *rsp passed to free_rsp_buf() is not assigned until *after* the error condition is checked. As *rsp is initialised to NULL, free_rsp_buf() becomes a no-op and the leak is instead reported by __kmem_cache_shutdown() upon subsequent rmmod of cifs.ko if (and only if) the error path has been hit. Pass rsp_iov.iov_base to free_rsp_buf() instead, similar to the code in other functions in smb2pdu.c for which *rsp is assigned late. Cc: stable@vger.kernel.org Signed-off-by: Jethro Donaldson <devel@jro.nz> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.