netdev - Re: [PATCH net-next] 802: fix a possible race condition

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:	Sun, 24 Mar 2013 17:24:03 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	amwang@...hat.com
Cc:	netdev@...r.kernel.org, david.ward@...mit.edu, jorge@...2.net
Subject: Re: [PATCH net-next] 802: fix a possible race condition

From: Cong Wang <amwang@...hat.com>
Date: Sat, 23 Mar 2013 13:14:08 +0800

> From: Cong Wang <amwang@...hat.com>
> 
> garp_pdu_queue() should ways be called with this spin lock.
> garp_uninit_applicant() only holds rtnl lock which is not
> enough here.
> 
> Found by code inspection.
> 
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: David Ward <david.ward@...mit.edu>
> Cc: "Jorge Boncompte [DTI2]" <jorge@...2.net>
> Signed-off-by: Cong Wang <amwang@...hat.com>

Under what conditions can entries be removed or added to
these RB-trees without the RTNL being held?

If such events cannot happen, then no locking is needed.

Even if your change is correct and necessary, the answer to my
needs to be added to your commit message.

Thanks.
--
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