Jeff Moyer a538e3ff9d aio: fix spectre gadget in lookup_ioctx
Matthew pointed out that the ioctx_table is susceptible to spectre v1,
because the index can be controlled by an attacker.  The below patch
should mitigate the attack for all of the aio system calls.

Cc: stable@vger.kernel.org
Reported-by: Matthew Wilcox <willy@infradead.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-11 11:45:50 -07:00
2018-11-09 16:31:51 -06:00
2018-12-10 13:37:20 -07:00
2018-11-08 17:49:04 -06:00
2018-10-31 08:54:14 -07:00
2018-10-31 11:01:38 -07:00
2018-11-03 10:47:33 -07:00
2018-11-02 10:04:26 -07:00
2018-04-15 17:21:30 -07:00
2018-10-31 08:54:12 -07:00
2017-11-17 17:45:29 -08:00
2018-11-09 16:31:51 -06:00
2018-11-04 15:37:52 -08:00

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.
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