linux/net/wireless
Johannes Berg 7400f42e9d cfg80211: fix NULL ptr deref
commit 211a4d12abf86fe0df4cd68fc6327cbb58f56f81
  Author: Johannes Berg <johannes@sipsolutions.net>
  Date:   Tue Oct 20 15:08:53 2009 +0900

      cfg80211: sme: deauthenticate on assoc failure

introduced a potential NULL pointer dereference that
some people have been hitting for some reason -- the
params.bssid pointer is not guaranteed to be non-NULL
for what seems to be a race between various ways of
reaching the same thing.

While I'm trying to analyse the problem more let's
first fix the crash. I think the real fix may be to
avoid doing _anything_ if it ended up being NULL, but
right now I'm not sure yet.

I think
http://bugzilla.kernel.org/show_bug.cgi?id=14342
might also be this issue.

Reported-by: Parag Warudkar <parag.lkml@gmail.com>
Tested-by: Parag Warudkar <parag.lkml@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-02 15:14:07 -05:00
..
Kconfig wireless: update cfg80211 kconfig entry 2009-09-08 16:31:06 -04:00
Makefile cfg80211: validate channel settings across interfaces 2009-08-14 09:13:42 -04:00
chan.c cfg80211: fix locking for SIWFREQ 2009-08-14 09:13:51 -04:00
core.c cfg80211: clean up properly on interface type change 2009-08-28 14:40:31 -04:00
core.h cfg80211: sme: deauthenticate on assoc failure 2009-10-27 16:29:47 -04:00
debugfs.c cfg80211: clean up naming once and for all 2009-07-10 15:02:33 -04:00
debugfs.h cfg80211: clean up naming once and for all 2009-07-10 15:02:33 -04:00
ibss.c cfg80211: make spurious warnings less likely, configurable 2009-08-28 14:40:30 -04:00
lib80211.c
lib80211_crypt_ccmp.c
lib80211_crypt_tkip.c
lib80211_crypt_wep.c
mlme.c cfg80211: sme: deauthenticate on assoc failure 2009-10-27 16:29:47 -04:00
nl80211.c cfg80211: fix netns error unwinding bug 2009-10-08 16:27:00 -04:00
nl80211.h cfg80211: fix locking 2009-07-10 15:02:32 -04:00
radiotap.c
reg.c trivial: remove duplicate "different" from comment 2009-08-14 09:14:02 -04:00
reg.h Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-08-12 17:44:53 -07:00
scan.c cfg80211: minimal error handling for wext-compat freq scanning 2009-09-23 11:35:39 -04:00
sme.c cfg80211: fix NULL ptr deref 2009-11-02 15:14:07 -05:00
sysfs.c
sysfs.h
util.c cfg80211: clean up properly on interface type change 2009-08-28 14:40:31 -04:00
wext-compat.c trivial: remove unnecessary semicolons 2009-09-21 15:14:58 +02:00
wext-compat.h cfg80211: validate channel settings across interfaces 2009-08-14 09:13:42 -04:00
wext-sme.c cfg80211: don't set privacy w/o key 2009-09-28 16:55:04 -04:00
wext.c wext: add back wireless/ dir in sysfs for cfg80211 interfaces 2009-09-28 16:55:07 -04:00