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Roberto Sassu d8d4da8a96 ima: Fix return value of ima_write_policy()

[ Upstream commit 2e3a34e9f4 ]

This patch fixes the return value of ima_write_policy() when a new policy
is directly passed to IMA and the current policy requires appraisal of the
file containing the policy. Currently, if appraisal is not in ENFORCE mode,
ima_write_policy() returns 0 and leads user space applications to an
endless loop. Fix this issue by denying the operation regardless of the
appraisal mode.

Cc: stable@vger.kernel.org # 4.10.x
Fixes: 19f8a84713 ("ima: measure and appraise the IMA policy itself")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Krzysztof Struczynski <krzysztof.struczynski@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-05-27 16:41:40 +02:00

apparmor

apparmor: enforce nullbyte at end of tag string

2019-07-10 09:55:29 +02:00

integrity

ima: Fix return value of ima_write_policy()

2020-05-27 16:41:40 +02:00

keys

KEYS: reaching the keys quotas correctly

2020-04-24 07:58:53 +02:00

loadpin

LSM: LoadPin: provide enablement CONFIG