Messages in this thread | | | Date | Mon, 30 Aug 2010 11:03:03 -0700 | From | Kees Cook <> | Subject | Re: [PATCH] wireless extensions: fix kernel heap content leak |
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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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