On 15-12-08 13:01:18, Mimi Zohar wrote:
> While creating a temporary list of new rules, the ima_appraise flag is
> updated, but not reverted on failure to append the new rules to the
> existing policy. This patch defines temp_ima_appraise flag. Only when
> the new rules are appended to the policy is the flag updated.
>
> Signed-off-by: Mimi Zohar <[email protected]>
FWIW - ACK.
cheers,
Petko
> ---
> security/integrity/ima/ima_policy.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/security/integrity/ima/ima_policy.c
> b/security/integrity/ima/ima_policy.c
> index 2f4e0f5..ba5d2fc 100644
> --- a/security/integrity/ima/ima_policy.c
> +++ b/security/integrity/ima/ima_policy.c
> @@ -40,6 +40,7 @@
> #define AUDIT 0x0040
>
> int ima_policy_flag;
> +static int temp_ima_appraise;
>
> #define MAX_LSM_RULES 6
> enum lsm_rule_types { LSM_OBJ_USER, LSM_OBJ_ROLE, LSM_OBJ_TYPE,
> @@ -370,6 +371,7 @@ void ima_update_policy_flag(void)
> ima_policy_flag |= entry->action;
> }
>
> + ima_appraise |= temp_ima_appraise;
> if (!ima_appraise)
> ima_policy_flag &= ~IMA_APPRAISE;
> }
> @@ -757,9 +759,9 @@ static int ima_parse_rule(char *rule, struct
> ima_rule_entry *entry)
> if (!result && (entry->action == UNKNOWN))
> result = -EINVAL;
> else if (entry->func == MODULE_CHECK)
> - ima_appraise |= IMA_APPRAISE_MODULES;
> + temp_ima_appraise |= IMA_APPRAISE_MODULES;
> else if (entry->func == FIRMWARE_CHECK)
> - ima_appraise |= IMA_APPRAISE_FIRMWARE;
> + temp_ima_appraise |= IMA_APPRAISE_FIRMWARE;
> audit_log_format(ab, "res=%d", !result);
> audit_log_end(ab);
> return result;
> @@ -821,6 +823,7 @@ void ima_delete_rules(void)
> struct ima_rule_entry *entry, *tmp;
> int i;
>
> + temp_ima_appraise = 0;
> list_for_each_entry_safe(entry, tmp, &ima_temp_rules, list) {
> for (i = 0; i < MAX_LSM_RULES; i++)
> kfree(entry->lsm[i].args_p);
> --
> 2.1.0
>
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