Mimi Zohar 5ff849948c 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 16:56:29 +00:00
..
evm	evm: Fix build warnings	2023-07-23 13:46:48 +02:00
ima	ima: detect changes to the backing overlay file	2023-11-28 16:56:29 +00:00
platform_certs	efi: Add iMac Pro 2017 to uefi skip cert quirk	2023-01-12 11:58:56 +01:00
Kconfig	powerpc: Load firmware trusted keys/hashes into kernel keyring	2019-11-13 00:33:23 +11:00
Makefile	powerpc: Load firmware trusted keys/hashes into kernel keyring	2019-11-13 00:33:23 +11:00
digsig.c	integrity: Fix memory leakage in keyring allocation error path	2022-12-31 13:14:10 +01:00
digsig_asymmetric.c	ima: fix reference leak in asymmetric_verify()	2022-02-16 12:56:03 +01:00
iint.c	ima: annotate iint mutex to avoid lockdep false positive warnings	2023-11-28 16:56:29 +00:00
integrity.h	ima: detect changes to the backing overlay file	2023-11-28 16:56:29 +00:00
integrity_audit.c	integrity: check the return value of audit_log_start()	2022-02-16 12:56:03 +01:00