Messages in this thread Patch in this message |  | | From | Stefan Berger <> | Subject | [PATCH v4 09/16] ima: Only accept AUDIT rules for IMA non-init_ima_ns namespaces for now | Date | Tue, 7 Dec 2021 15:21:20 -0500 |
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Only accept AUDIT rules for non-init_ima_ns namespaces rejecting all rules that require support for measuring, appraisal, and hashing.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> --- security/integrity/ima/ima_policy.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 4d6d3a39f65e..747dca6131d6 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -1787,6 +1787,16 @@ static int ima_parse_rule(struct ima_namespace *ns, result = -EINVAL; break; } + + /* IMA namespace only accepts AUDIT rules */ + if (ns != &init_ima_ns) { + switch (entry->action) { + case MEASURE: + case APPRAISE: + case HASH: + result = -EINVAL; + } + } } if (!result && !ima_validate_rule(entry)) result = -EINVAL; -- 2.31.1
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