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Mimi Zohar 143f450c6c ima: detect changes to the backing overlay file 
commit b836c4d29f2744200b2af41e14bf50758dddc818 upstream.

Commit 18b44bc5a6 ("ovl: Always reevaluate the file signature for
IMA") forced signature re-evaulation on every file access.

Instead of always re-evaluating the file's integrity, detect a change
to the backing file, by comparing the cached file metadata with the
backing file's metadata.  Verifying just the i_version has not changed
is insufficient.  In addition save and compare the i_ino and s_dev
as well.

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Tested-by: Eric Snowberg <eric.snowberg@oracle.com>
Tested-by: Raul E Rangel <rrangel@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2023-11-28 17:07:12 +00:00
Documentation smp,csd: Throw an error if a CSD lock is stuck for too long 2023-11-28 17:06:55 +00:00
LICENSES
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arch arm64: dts: qcom: ipq6018: Fix tcsr_mutex register size 2023-11-28 17:07:12 +00:00
block blk-core: use pr_warn_ratelimited() in bio_check_ro() 2023-11-20 11:52:17 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: pcrypt - Fix hungtask for PADATA_RESET 2023-11-28 17:06:58 +00:00
drivers mfd: qcom-spmi-pmic: Fix revid implementation 2023-11-28 17:07:12 +00:00
fs ima: detect changes to the backing overlay file 2023-11-28 17:07:12 +00:00
include mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A 2023-11-28 17:07:11 +00:00
init proc: sysctl: prevent aliased sysctls from getting passed to init 2023-11-28 17:07:08 +00:00
io_uring io_uring/net: ensure socket is marked connected on connect retry 2023-11-20 11:52:18 +01:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel rcu: kmemleak: Ignore kmemleak false positives when RCU-freeing objects 2023-11-28 17:07:12 +00:00
lib lib/generic-radix-tree.c: Don't overflow in peek() 2023-11-28 17:06:54 +00:00
mm mm/damon/sysfs: check error from damon_sysfs_update_target() 2023-11-28 17:07:09 +00:00
net svcrdma: Drop connection after an RDMA Read error 2023-11-28 17:07:11 +00:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples fprobe: Pass entry_data to handlers 2023-10-25 12:03:12 +02:00
scripts randstruct: Fix gcc-plugin performance mode to stay in group 2023-11-28 17:07:07 +00:00
security ima: detect changes to the backing overlay file 2023-11-28 17:07:12 +00:00
sound ALSA: hda/realtek: Add quirk for ASUS UX7602ZM 2023-11-28 17:07:03 +00:00
tools perf intel-pt: Fix async branch flags 2023-11-28 17:07:07 +00:00
usr
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virt kvm/vfio: ensure kvg instance stays around in kvm_vfio_group_add() 2023-09-13 09:42:46 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig
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.get_maintainer.ignore
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.gitattributes
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.gitignore
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.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml
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COPYING
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CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild
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Kconfig
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MAINTAINERS devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
Makefile Linux 6.1.63 2023-11-20 11:52:19 +01:00
README
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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.