netdev - Re: [PATCH] bnx2: reset_task is crashing the kernel. Fixing it.

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]

Date:	Wed, 16 Dec 2009 09:23:58 -0800
From:	Laurent Chavey <chavey@...gle.com>
To:	leitao@...ux.vnet.ibm.com
Cc:	mchan@...adcom.com, netdev@...r.kernel.org
Subject: Re: [PATCH] bnx2: reset_task is crashing the kernel. Fixing it.

On Wed, Dec 16, 2009 at 4:09 AM,  <leitao@...ux.vnet.ibm.com> wrote:
> Acutally if a BNX2 interface gets time outs, the reset_task is
> called to restart the interface. But, the NIC is turned off with
> some packages to transmitt, and this causes the function

s/packages/packets/
s/transmitt/transmit/

> napi_disable() to loop forever, crashing the kernel.
>
> Signed-off-by: Breno Leitao <leitao@...ux.vnet.ibm.com>
> ---
>  drivers/net/bnx2.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
> index f81f082..40c883b 100644
> --- a/drivers/net/bnx2.c
> +++ b/drivers/net/bnx2.c
> @@ -652,8 +652,6 @@ bnx2_napi_enable(struct bnx2 *bp)
>  static void
>  bnx2_netif_stop(struct bnx2 *bp)
>  {
> -       bnx2_cnic_stop(bp);
> -       bnx2_disable_int_sync(bp);
>        if (netif_running(bp->dev)) {
>                int i;
>
> @@ -667,6 +665,8 @@ bnx2_netif_stop(struct bnx2 *bp)
>                        txq->trans_start = jiffies;
>                }
>        }
> +       bnx2_cnic_stop(bp);
> +       bnx2_disable_int_sync(bp);
>  }
>
>  static void
> --
> 1.6.0.2
>
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html