netdev - Re: [PATCH net] bnx2x: Prevent restarting Tx during bnx2x_nic

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] [day] [month] [year] [list]

Date:	Tue, 02 Aug 2011 01:35:52 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	vladz@...adcom.com
Cc:	netdev@...r.kernel.org, eilong@...adcom.com
Subject: Re: [PATCH net] bnx2x: Prevent restarting Tx during
 bnx2x_nic_unload

From: "Vlad Zolotarov" <vladz@...adcom.com>
Date: Tue, 2 Aug 2011 10:52:37 +0300

> Tx queues were stopped before  bp->state was changed to a value different 
> from BNX2X_STATE_OPEN, which allowed the bnx2x_tx_int() called from the 
> NAPI context to re-enable it. This then allowed the netdev->ndo_start_xmit() 
> to be called in the middle of the function reset and rings freeing. 
> 
> This patch changes bp->state to a value different 
> from BNX2X_STATE_OPEN BEFORE disabling the Tx queues in order to restore the
> broken protection against the above race in the bnx2x_tx_int().
> 
> Signed-off-by: Vladislav Zolotarov <vladz@...adcom.com>
> Signed-off-by: Eilon Greenstein <eilong@...adcom.com>

Applied, thansk Vlad.
--
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