netdev - Re: [PATCH net] mpls: fix possible use after free of device

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 for Android: free password hash cracker in your pocket

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

Date:	Sun, 07 Jun 2015 19:37:43 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rshearma@...cade.com
Cc:	netdev@...r.kernel.org, ebiederm@...ssion.com,
	roopa@...ulusnetworks.com
Subject: Re: [PATCH net] mpls: fix possible use after free of device

From: Robert Shearman <rshearma@...cade.com>
Date: Fri, 5 Jun 2015 18:54:45 +0100

> The mpls device is used in an RCU read context without a lock being
> held. As the memory is freed without waiting for the RCU grace period
> to elapse, the freed memory could still be in use.
> 
> Address this by using kfree_rcu to free the memory for the mpls device
> after the RCU grace period has elapsed.
> 
> Fixes: 03c57747a702 ("mpls: Per-device MPLS state")
> Signed-off-by: Robert Shearman <rshearma@...cade.com>

Applied, 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