Mimi Zohar a311638793 ima: detect changes to the backing overlay file ... commit b836c4d29f 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
..
ima_api.c	ima: detect changes to the backing overlay file	2023-11-28 17:20:03 +00:00
ima_appraise.c	integrity: Always reference the blacklist keyring with appraisal	2023-08-01 08:17:25 -04:00
ima_asymmetric_keys.c	fs: port xattr to mnt_idmap	2023-01-19 09:24:28 +01:00
ima_crypto.c	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
ima_efi.c	ima: require signed IMA policy when UEFI secure boot is enabled	2023-08-01 08:18:11 -04:00
ima_fs.c	ima: Return error code obtained from securityfs functions	2022-02-15 11:17:01 -05:00
ima_init.c	ima: define ima_max_digest_data struct without a flexible array variable	2022-02-15 11:52:06 -05:00
ima_kexec.c	kexec_lock: Replace kexec_mutex() by kexec_lock() in two comments	2023-08-07 09:55:42 -04:00
ima_main.c	ima: detect changes to the backing overlay file	2023-11-28 17:20:03 +00:00
ima_modsig.c	ima: Fix build warnings	2023-06-06 09:37:23 -04:00
ima_mok.c	IMA: remove -Wmissing-prototypes warning	2021-07-23 08:05:06 -04:00
ima_policy.c	integrity-v6.6	2023-08-30 09:16:56 -07:00
ima_queue_keys.c	fs: port xattr to mnt_idmap	2023-01-19 09:24:28 +01:00
ima_queue.c	IMA: support for duplicate measurement records	2021-06-11 12:54:13 -04:00
ima_template_lib.c	fs: port ->permission() to pass mnt_idmap	2023-01-19 09:24:28 +01:00
ima_template_lib.h	ima: define a new template field named 'd-ngv2' and templates	2022-05-05 11:49:13 -04:00
ima_template.c	ima: Fix misuse of dereference of pointer in template_desc_init_fields()	2022-11-16 11:47:55 -05:00
ima.h	integrity-v6.3	2023-02-22 12:36:25 -08:00
Kconfig	ima: rework CONFIG_IMA dependency block	2023-09-27 11:52:12 -04:00
Makefile	ima: generalize x86/EFI arch glue for other EFI architectures	2020-11-06 07:40:42 +01:00