linux-kernel - Re: [RFC PATCH 4/7] audit: wake up threads if queue switched from limited to unlimited

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <17437322.gt1f2pcy05@sifl>
Date:	Thu, 05 Nov 2015 19:05:05 -0500
From:	Paul Moore <paul@...l-moore.com>
To:	Richard Guy Briggs <rgb@...hat.com>
Cc:	linux-audit@...hat.com, linux-kernel@...r.kernel.org,
	v.rathor@...il.com
Subject: Re: [RFC PATCH 4/7] audit: wake up threads if queue switched from limited to unlimited

On Thursday, October 22, 2015 02:53:17 PM Richard Guy Briggs wrote:
> If the audit_backlog_limit is changed from a limited value to an
> unlimited value (zero) while the queue was overflowed, wake up the
> audit_backlog_wait queue to allow those processes to continue.
> 
> Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
> ---
>  kernel/audit.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)

Looks like the right thing to do, merged to audit#next-queue.

> diff --git a/kernel/audit.c b/kernel/audit.c
> index 384a1a1..02a5ec0 100644
> --- a/kernel/audit.c
> +++ b/kernel/audit.c
> @@ -523,7 +523,8 @@ static int kauditd_thread(void *dummy)
>  		skb = skb_dequeue(&audit_skb_queue);
> 
>  		if (skb) {
> -			if (skb_queue_len(&audit_skb_queue) <= audit_backlog_limit)
> +			if (!audit_backlog_limit ||
> +			    (skb_queue_len(&audit_skb_queue) <= audit_backlog_limit))
>  				wake_up(&audit_backlog_wait);
>  			if (audit_pid)
>  				kauditd_send_skb(skb);

-- 
paul moore
www.paul-moore.com

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/