5593f69b94
BugLink: https://launchpad.net/bugs/1793458 When reading directory contents ensure the mounter has permissions for the operation over the constituent parts (lower and upper). Where we are in a namespace this ensures that the mounter (root in that namespace) has permissions over the files and directories, preventing exposure of protected files and directory contents. CVE-2018-6559 Signed-off-by: Andy Whitcroft <apw@canonical.com> [tyhicks: make use of new upstream check in ovl_permission() for copy-ups] [tyhicks: make use of creator (mounter) creds hanging off the super block] Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Signed-off-by: Seth Forshee <seth.forshee@canonical.com> |
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| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| debian | ||
| debian.master | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| ubuntu | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| dropped.txt | ||
| snapcraft.yaml | ||
| update-version-dkms | ||
README
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.