Re: [PATCH] wireless extensions: fix kernel heap content leak
From: Kees Cook <hidden>
Date: 2010-08-30 18:04:14
Also in:
lkml, netdev
Hi Johannes, On Mon, Aug 30, 2010 at 12:24:54PM +0200, Johannes Berg wrote:
quoted hunk ↗ jump to hunk
--- 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