netdev - Re: [PATCH][NETNS]: The ip6_fib_timer can work with garbage on net namespace stop.

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: <20080421.142315.226236627.davem@davemloft.net>
Date:	Mon, 21 Apr 2008 14:23:15 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	xemul@...nvz.org
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH][NETNS]: The ip6_fib_timer can work with garbage on net
 namespace stop.

From: Pavel Emelyanov <xemul@...nvz.org>
Date: Mon, 21 Apr 2008 17:05:50 +0400

> The del_timer() function doesn't guarantee, that the timer callback
> is not active by the time it exits.
> 
> Thus, the fib6_net_exit() may kfree() all the data, that is required
> by the fib6_run_gc(). The race window is tiny, but slab poisoning can
> trigger this bug.
> 
> Using del_timer_sync() will cure this.
> 
> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

Applied, thanks Pavel.
--
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