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[ Upstream commit5d187c0454] The SG list may be set up with entry size more than the requested length. Check the usb_request->length and make sure that we don't setup the TRBs to send/receive more than requested. This case may occur when the SG entry is allocated up to a certain minimum size, but the request length is less than that. It can also occur when the request is reused for a different request length. Cc: <stable@vger.kernel.org> # v4.18+ Fixes:a31e63b608("usb: dwc3: gadget: Correct handling of scattergather lists") Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> 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.
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.