[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 08 Mar 2018 15:36:14 -0500
From: Mimi Zohar <zohar@...ux.vnet.ibm.com>
To: Tycho Andersen <tycho@...ho.ws>,
Dmitry Kasatkin
<dmitry.kasatkin@...il.com>
Cc: linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v2] ima: drop vla in ima_audit_measurement()
On Thu, 2018-03-08 at 13:23 -0700, Tycho Andersen wrote:
> /*
> diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
> index 2cfb0c714967..356faae6f09c 100644
> --- a/security/integrity/ima/ima_main.c
> +++ b/security/integrity/ima/ima_main.c
> @@ -288,8 +288,11 @@ static int process_measurement(struct file *file, char *buf, loff_t size,
> xattr_value, xattr_len, opened);
> inode_unlock(inode);
> }
> - if (action & IMA_AUDIT)
> - ima_audit_measurement(iint, pathname);
> + if (action & IMA_AUDIT) {
> + rc = ima_audit_measurement(iint, pathname);
> + if (rc < 0)
> + goto out_locked;
> + }
>
> if ((file->f_flags & O_DIRECT) && (iint->flags & IMA_PERMIT_DIRECTIO))
> rc = 0;
Only when IMA-appraisal is enforcing file data integrity should
process_measurement() ever fail. Other errors can be logged/audited.
Mimi
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
