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[ Upstream commitd4d8257754] iso_buffer should be set to NULL after use and free in the while loop. In the case of isochronous URB in the while loop, iso_buffer is allocated and after sending it to server, buffer is deallocated. And then, if the next URB in the while loop is not a isochronous pipe, iso_buffer still holds the previously deallocated buffer address and kfree tries to free wrong buffer address. Fixes:ea44d19076("usbip: Implement SG support to vhci-hcd and stub driver") Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Suwan Kim <suwan.kim027@gmail.com> Reviewed-by: Julia Lawall <julia.lawall@lip6.fr> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20191022093017.8027-1-suwan.kim027@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.