Mimi Zohar a311638793 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 17:20:03 +00:00
..
evm	lsm/stable-6.6 PR 20230829	2023-08-30 09:07:09 -07:00
ima	ima: detect changes to the backing overlay file	2023-11-28 17:20:03 +00:00
platform_certs	Hi,	2023-08-29 08:05:18 -07:00
Kconfig	integrity: powerpc: Do not select CA_MACHINE_KEYRING	2023-11-28 17:20:01 +00:00
Makefile	integrity: Introduce a Linux keyring called machine	2022-03-08 13:55:52 +02:00
digsig.c	integrity: check whether imputed trust is enabled	2023-08-17 20:12:35 +00:00
digsig_asymmetric.c	ima: fix reference leak in asymmetric_verify()	2022-01-24 18:37:36 -05:00
iint.c	ima: annotate iint mutex to avoid lockdep false positive warnings	2023-11-28 17:20:03 +00:00
integrity.h	ima: detect changes to the backing overlay file	2023-11-28 17:20:03 +00:00
integrity_audit.c	integrity: check the return value of audit_log_start()	2022-02-02 11:44:23 -05:00