From: Mimi Zohar <zohar@linux.ibm.com>
To: Tushar Sugandhi <tusharsu@linux.microsoft.com>,
joe@perches.com, skhan@linuxfoundation.org,
linux-integrity@vger.kernel.org
Cc: sashal@kernel.org, nramas@linux.microsoft.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/3] IMA: Add log statements for failure conditions.
Date: Wed, 12 Feb 2020 09:47:03 -0500 [thread overview]
Message-ID: <1581518823.8515.49.camel@linux.ibm.com> (raw)
In-Reply-To: <20200211231414.6640-3-tusharsu@linux.microsoft.com>
Hi Tushar,
Please remove the period at the end of the Subject line.
On Tue, 2020-02-11 at 15:14 -0800, Tushar Sugandhi wrote:
> process_buffer_measurement() does not have log messages for failure
> conditions.
>
> This change adds a log statement in the above function.
I agree some form of notification needs to be added. The question is
whether the failure should be audited or a kernel message emitted.
IMA emits audit messages (integrity_audit_msg) for a number of
reasons - on failure to calculate a file hash, invalid policy rules,
failure to communicate with the TPM, signature verification errors,
etc.
>
> Signed-off-by: Tushar Sugandhi <tusharsu@linux.microsoft.com>
> Reviewed-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
> Suggested-by: Joe Perches <joe@perches.com>
> ---
> security/integrity/ima/ima_main.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
> index 9fe949c6a530..6e1576d9eb48 100644
> --- a/security/integrity/ima/ima_main.c
> +++ b/security/integrity/ima/ima_main.c
> @@ -757,6 +757,9 @@ void process_buffer_measurement(const void *buf, int size,
> ima_free_template_entry(entry);
>
> out:
> + if (ret < 0)
> + pr_err("%s: failed, result: %d\n", __func__, ret);
> +
> return;
> }
>
With 3/3 "IMA: Add module name and base name prefix to log", the
resulting message will be "KBUILD_MODNAME: KBUILD_BASENAME: func:".
Isn't that a bit much?
Mimi
next prev parent reply other threads:[~2020-02-12 15:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 23:14 [PATCH v3 0/3] IMA: improve log messages in IMA Tushar Sugandhi
2020-02-11 23:14 ` [PATCH v3 1/3] IMA: Update KBUILD_MODNAME for IMA files to ima Tushar Sugandhi
2020-02-12 14:49 ` Mimi Zohar
2020-02-12 22:25 ` Tushar Sugandhi
2020-02-11 23:14 ` [PATCH v3 2/3] IMA: Add log statements for failure conditions Tushar Sugandhi
2020-02-12 14:47 ` Mimi Zohar [this message]
2020-02-12 22:30 ` Tushar Sugandhi
2020-02-13 0:21 ` Mimi Zohar
2020-02-13 21:01 ` Tushar Sugandhi
2020-02-11 23:14 ` [PATCH v3 3/3] IMA: Add module name and base name prefix to log Tushar Sugandhi
2020-02-12 14:29 ` Mimi Zohar
2020-02-12 15:26 ` James Bottomley
2020-02-12 15:47 ` Joe Perches
2020-02-12 22:52 ` Shuah Khan
2020-02-13 0:38 ` Mimi Zohar
2020-02-13 0:56 ` Tushar Sugandhi
2020-02-12 15:23 ` [PATCH v3 0/3] IMA: improve log messages in IMA Mimi Zohar
2020-02-12 22:22 ` Tushar Sugandhi
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