netdev - Re: 3.7.3+: Bad paging request in ip_rcv_finish while running NFS traffic.

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:	Tue, 22 Jan 2013 22:11:33 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ben Greear <greearb@...delatech.com>
Cc:	netdev <netdev@...r.kernel.org>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>
Subject: Re: 3.7.3+:  Bad paging request in ip_rcv_finish while running NFS
 traffic.

On Tue, 2013-01-22 at 18:32 -0800, Ben Greear wrote:

> diff --git a/net/core/dst.c b/net/core/dst.c
> index ee6153e..234b168 100644
> --- a/net/core/dst.c
> +++ b/net/core/dst.c
> @@ -245,6 +245,7 @@ again:
>                  dst->ops->destroy(dst);
>          if (dst->dev)
>                  dev_put(dst->dev);
> +       dst->input = dst->output = 0xdeadbeef;
>          kmem_cache_free(dst->ops->kmem_cachep, dst);

Great !

You could comment the kmem_cache_free() as well to get better chances to
hit the bug, and maybe start a bisection to find the faulty commit ?



--
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