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Filename Latest commit message Latest commit date
Roberto Sassu 020aae3ee5 ima: do not update security.ima if appraisal status is not INTEGRITY_PASS 
Commit b65a9cfc2c ("Untangling ima mess, part 2: deal with counters")
moved the call of ima_file_check() from may_open() to do_filp_open() at a
point where the file descriptor is already opened.

This breaks the assumption made by IMA that file descriptors being closed
belong to files whose access was granted by ima_file_check(). The
consequence is that security.ima and security.evm are updated with good
values, regardless of the current appraisal status.

For example, if a file does not have security.ima, IMA will create it after
opening the file for writing, even if access is denied. Access to the file
will be allowed afterwards.

Avoid this issue by checking the appraisal status before updating
security.ima.

Cc: stable@vger.kernel.org
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2017-11-20 08:23:10 +11:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2017-11-17 20:21:44 -08:00
block
certs
crypto
Documentation platform-drivers-x86 for v4.15-1 2017-11-18 10:26:57 -08:00
drivers Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2017-11-19 08:04:41 -10:00
firmware
fs Lots of good bugfixes, including: 2017-11-18 11:22:04 -08:00
include Lots of good bugfixes, including: 2017-11-18 11:22:04 -08:00
init
ipc Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
kernel Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
lib Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
mm
net Lots of good bugfixes, including: 2017-11-18 11:22:04 -08:00
samples
scripts Kbuild misc updates for v4.15 2017-11-17 17:51:33 -08:00
security ima: do not update security.ima if appraisal status is not INTEGRITY_PASS 2017-11-20 08:23:10 +11:00
sound
tools platform-drivers-x86 for v4.15-1 2017-11-18 10:26:57 -08:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Kbuild misc updates for v4.15 2017-11-17 17:51:33 -08:00
.mailmap
COPYING
CREDITS
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig
MAINTAINERS platform-drivers-x86 for v4.15-1 2017-11-18 10:26:57 -08:00
Makefile Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.