hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Just a single fix, for a WoWLAN-related part of CVE-2017-13080. 

-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEExu3sM/nZ1eRSfR9Ha3t4Rpy0AB0FAlnkt7YACgkQa3t4Rpy0
 AB3UZg/8CsZr3SeDM1CxLTmDxJ734qq2kcoBo8nJgJqSwIWE5goGXCJSIGQw0o9O
 X8IF/xKj+Vgqfmxs73dnZM15klkVc9HBOdMdnjayWZZa5h6wKFFVNdjkMsrFxdV8
 iugcCaUYCg1/Sc/qq4hBWLe5k3mQa5fB1clr7qykYEfIuY2ORpEJ+P2Uqjb5/RKx
 ugLO1qdCVMk7kqB/Fc8XKrPdiCgmfaMdz9lTqm1yXDThQe0rNxmWR339YpleqEiA
 lWIOZ53OlHZ3LTz8YDPcNA7mf5KtK1qQc60kZLygDcy5swvKaSIUaLfYOIjsPLIi
 5tJ4tztEPpi5RTMPHkOLCcdGCT2bQ9InCmgSmEwymMbn36vaLuyH+9pfkqgbunUq
 M1C07VNG9HUi+Qz6mhtbY6ZyG0s1M09rAouCOGo4T9x7YHA73BetvcxYcxhdTm6t
 vOTDd/xiWM1Dsgc2tu41A+jB3cShi5so/OLE1KcLe4r1cso6+FdR+p5VW6XyRV73
 Kbdh39azsdlyK6L+BW6cWCm/DUstourVmOz7mPebE0NW7N8cEhTtvclu0dz1gdKL
 nBMha+lOBmy2+acU5Z58f6/jG8RCMcyiD+0z9yrZmOmO4OgVyxHXP2GrsQ1d/Qr5
 vhBLT1LFxcvJpIlKZy3dqv1lZQ10suwcsFzJG3NsQbczV7Vk9aM=
 =Iwyf
 -----END PGP SIGNATURE-----

Merge tag 'mac80211-for-davem-2017-10-16' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Just a single fix, for a WoWLAN-related part of CVE-2017-13080.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-10-16 21:27:16 +01:00
parent 823038ca03 fdf7cb4185
commit 1b72bf5a07
1 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
net/mac80211/key.c
View File

@ -4,7 +4,7 @@
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net> * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2015 Intel Deutschland GmbH * Copyright 2015-2017 Intel Deutschland GmbH
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as * it under the terms of the GNU General Public License version 2 as
@ -620,9 +620,6 @@ int ieee80211_key_link(struct ieee80211_key *key,
pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE; pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE;
idx = key->conf.keyidx; idx = key->conf.keyidx;
key->local = sdata->local;
key->sdata = sdata;
key->sta = sta;
mutex_lock(&sdata->local->key_mtx); mutex_lock(&sdata->local->key_mtx);
@ -633,6 +630,21 @@ int ieee80211_key_link(struct ieee80211_key *key,
else else
old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]); old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]);
/*
* Silently accept key re-installation without really installing the
* new version of the key to avoid nonce reuse or replay issues.
*/
if (old_key && key->conf.keylen == old_key->conf.keylen &&
!memcmp(key->conf.key, old_key->conf.key, key->conf.keylen)) {
ieee80211_key_free_unused(key);
ret = 0;
goto out;
}
key->local = sdata->local;
key->sdata = sdata;
key->sta = sta;
increment_tailroom_need_count(sdata); increment_tailroom_need_count(sdata);
ieee80211_key_replace(sdata, sta, pairwise, old_key, key); ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
@ -648,6 +660,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
ret = 0; ret = 0;
} }
out:
mutex_unlock(&sdata->local->key_mtx); mutex_unlock(&sdata->local->key_mtx);
return ret; return ret;