From: Kees Cook <kees.cook-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
To: Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
Cc: "John W. Linville"
<linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
Eric Dumazet
<eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jean Tourrilhes <jt-sDzT885Ts8HQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH] wireless extensions: fix kernel heap content leak
Date: Mon, 30 Aug 2010 11:03:03 -0700 [thread overview]
Message-ID: <20100830180302.GM4703@outflux.net> (raw)
In-Reply-To: <1283163894.3691.48.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
Hi Johannes,
On Mon, Aug 30, 2010 at 12:24:54PM +0200, Johannes Berg wrote:
> --- wireless-testing.orig/net/wireless/wext-compat.c 2010-08-30 12:04:57.000000000 +0200
> +++ wireless-testing/net/wireless/wext-compat.c 2010-08-30 12:11:32.000000000 +0200
> @@ -1420,6 +1420,9 @@ int cfg80211_wext_giwessid(struct net_de
> {
> struct wireless_dev *wdev = dev->ieee80211_ptr;
>
> + data->flags = 0;
> + data->length = 0;
> +
> switch (wdev->iftype) {
> case NL80211_IFTYPE_ADHOC:
> return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
Thanks for all your work on this! Were you able to trigger the leak
through cfg80211? If so, then this will need a CVE assigned and sent to
stable too, I think.
-Kees
--
Kees Cook
Ubuntu Security Team
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next prev parent reply other threads:[~2010-08-30 18:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-27 21:02 [PATCH] wireless: fix 64K kernel heap content leak via ioctl Kees Cook
2010-08-27 21:22 ` Jean Tourrilhes
2010-08-27 21:43 ` Kees Cook
[not found] ` <20100827214357.GE4703-oSa+0FWJbaXR7s880joybQ@public.gmane.org>
2010-08-27 21:53 ` Jean Tourrilhes
2010-08-27 22:35 ` Luis R. Rodriguez
[not found] ` <AANLkTimeEa_=dqX5yFnYzaSaL90TfOg3=MsydG81naAC-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-08-27 22:39 ` Jean Tourrilhes
2010-08-27 22:51 ` Luis R. Rodriguez
2010-08-30 8:47 ` Johannes Berg
2010-08-30 8:58 ` Johannes Berg
2010-08-30 9:59 ` Johannes Berg
2010-08-30 10:24 ` [PATCH] wireless extensions: fix kernel heap content leak Johannes Berg
[not found] ` <1283163894.3691.48.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2010-08-30 18:03 ` Kees Cook [this message]
2010-08-30 18:06 ` Johannes Berg
2010-08-30 17:40 ` [PATCH] wireless: fix 64K kernel heap content leak via ioctl Jean Tourrilhes
[not found] ` <20100830174018.GA3639-yAE0UhLNZJawPNPzzlOzwdBPR1lH4CV8@public.gmane.org>
2010-08-30 17:50 ` Johannes Berg
2010-09-15 22:48 ` [vendor-sec] " Greg KH
[not found] ` <20100915224836.GF19835-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2010-09-15 23:11 ` Johannes Berg
2010-09-15 23:28 ` Greg KH
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