Mimi Zohar 30511f37c9 ima: detect changes to the backing overlay file ... [ Upstream commit b836c4d29f ] 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: Sasha Levin <sashal@kernel.org>		2023-12-08 08:44:27 +01:00
..
evm	evm: Complete description of evm_inode_setattr()	2023-07-27 08:37:06 +02:00
ima	ima: detect changes to the backing overlay file	2023-12-08 08:44:27 +01:00
platform_certs	efi: Add iMac Pro 2017 to uefi skip cert quirk	2023-01-18 11:41:49 +01:00
Kconfig	…
Makefile	x86/efi: move common keyring handler functions to new file	2021-06-30 08:47:55 -04:00
digsig.c	integrity: Fix memory leakage in keyring allocation error path	2023-01-18 11:41:03 +01:00
digsig_asymmetric.c	…
iint.c	ima: annotate iint mutex to avoid lockdep false positive warnings	2023-12-08 08:44:27 +01:00
integrity.h	ima: detect changes to the backing overlay file	2023-12-08 08:44:27 +01:00
integrity_audit.c	integrity: check the return value of audit_log_start()	2022-02-16 12:52:47 +01:00