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linux/security/integrity
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Roberto Sassu 57a0ef02fe ima: Reset IMA_NONACTION_RULE_FLAGS after post_setattr 
Commit 0d73a55208 ("ima: re-introduce own integrity cache lock")
mistakenly reverted the performance improvement introduced in commit
42a4c60319 ("ima: fix ima_inode_post_setattr"). The unused bit mask was
subsequently removed by commit 11c60f23ed ("integrity: Remove unused
macro IMA_ACTION_RULE_FLAGS").

Restore the performance improvement by introducing the new mask
IMA_NONACTION_RULE_FLAGS, equal to IMA_NONACTION_FLAGS without
IMA_NEW_FILE, which is not a rule-specific flag.

Finally, reset IMA_NONACTION_RULE_FLAGS instead of IMA_NONACTION_FLAGS in
process_measurement(), if the IMA_CHANGE_ATTR atomic flag is set (after
file metadata modification).

With this patch, new files for which metadata were modified while they are
still open, can be reopened before the last file close (when security.ima
is written), since the IMA_NEW_FILE flag is not cleared anymore. Otherwise,
appraisal fails because security.ima is missing (files with IMA_NEW_FILE
set are an exception).

Cc: stable@vger.kernel.org # v4.16.x
Fixes: 0d73a55208 ("ima: re-introduce own integrity cache lock")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2025-02-04 21:36:43 -05:00
..
evm integrity: fix typos and spelling errors 2025-02-04 21:36:43 -05:00
ima ima: Reset IMA_NONACTION_RULE_FLAGS after post_setattr 2025-02-04 21:36:43 -05:00
platform_certs Hi, 2023-08-29 08:05:18 -07:00
digsig.c integrity: eliminate unnecessary "Problem loading X.509 certificate" msg 2024-02-16 08:04:17 -05:00
digsig_asymmetric.c crypto: sm2 - Remove sm2 algorithm 2024-06-07 19:46:39 +08:00
iint.c integrity: Remove LSM 2024-02-15 23:43:48 -05:00
integrity.h integrity: Use static_assert() to check struct sizes 2024-10-09 22:49:40 -04:00
integrity_audit.c integrity: check the return value of audit_log_start() 2022-02-02 11:44:23 -05:00
Kconfig integrity-v6.7 2023-11-02 06:53:22 -10:00
Makefile ima: Move to LSM infrastructure 2024-02-15 23:43:46 -05:00