Re: unhelpful and somewhat scary r8169 boot message in 18.104.22.168regarding a security fix
From: David Miller
Date: Fri Apr 02 2010 - 17:36:34 EST
From: Nix <nix@xxxxxxxxxxxxx>
Date: Fri, 02 Apr 2010 16:19:13 +0100
> So I was doing a test-boot of 22.214.171.124 to see if my hang-on-suspend
> Radeon DRM regression (fdo bug 26872) was cured (it wasn't), when a
> new message appeared at bootup, the second of those below:
> [ 8.766768] r8169: fastnet: link up
> [ 8.791231] WARNING! Changing of MTU on this NICMay lead to frame reception errors!
> (which appeared when I set the MTU on my r8169 to 7200.)
> Not only is this message plainly misformatted :)
Formating has been fixed in the net-2.6 tree yesterday.
> but it does not explain *why* changing the MTU is suddenly so bad,
> when it's worked forever before now without flaw, with no sign of
> any sort of corruption. Why should we be confined to non-jumbo
> frames? What are the effects if we do change MTU?
Have a look at CVE-2009-4537
It's a remotely exploitable memory corruptor and potential
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/