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commit9046625511upstream. When mounting eCryptfs, a null "dev_name" argument to ecryptfs_mount() causes a kernel panic if the parsed options are valid. The easiest way to reproduce this is to call mount() from userspace with an existing eCryptfs mount's options and a "source" argument of 0. Error out if "dev_name" is null in ecryptfs_mount() Fixes:237fead619("[PATCH] ecryptfs: fs/Makefile and fs/Kconfig") Cc: stable@vger.kernel.org Signed-off-by: Jeffrey Mitchell <jeffrey.mitchell@starlab.io> Signed-off-by: Tyler Hicks <code@tyhicks.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.