Re: [PATCH] ima: Add a space after printing a LSM rule for readability

From: Mimi Zohar
Date: Fri Jan 03 2020 - 12:11:39 EST


On Fri, 2020-01-03 at 15:51 +0800, clayc@xxxxxxx wrote:
> From: Clay Chang <clayc@xxxxxxx>

Normally this "From" line is only seen when the sender isn't the patch
author. ÂAny ideas what happened?Â

>
> When reading ima_policy from securityfs, there is a missing
> space between output string of LSM rules.
>
> Signed-off-by: Clay Chang <clayc@xxxxxxx>

Good catch! ÂIMA policy rules based on LSM labels are used to
constrain which files are in policy. ÂNormally a single LSM label is
enough (e.g. dont_measure obj_type=auditd_log_t). ÂCould you include
in this patch description a use case where multiple LSM labels are
needed?

thanks,

Mimi

> ---
> security/integrity/ima/ima_policy.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
> index ef8dfd47c7e3..1a266e4f99bc 100644
> --- a/security/integrity/ima/ima_policy.c
> +++ b/security/integrity/ima/ima_policy.c
> @@ -1496,6 +1496,7 @@ int ima_policy_show(struct seq_file *m, void *v)
> (char *)entry->lsm[i].args_p);
> break;
> }
> + seq_puts(m, " ");
> }
> }
> if (entry->template)