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[ Upstream commite1f1bd9bfb] Fix race condition between ena_update_on_link_change() and ena_restore_device(). This race can occur if link notification arrives while the driver is performing a reset sequence. In this case link can be set up, enabling the device, before it is fully restored. If packets are sent at this time, the driver might access uninitialized data structures, causing kernel crash. Move the clearing of ENA_FLAG_ONGOING_RESET and netif_carrier_on() after ena_up() to ensure the device is ready when link is set up. Fixes:d18e4f6834("net: ena: fix race condition between device reset and link up setup") Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net> 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.
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.