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android_kernel_motorola_sm6375/net/mac80211
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Filename Latest commit message Latest commit date
Michal Kazior ab499db80f mac80211: prevent possible crypto tx tailroom corruption 
There was a possible race between
ieee80211_reconfig() and
ieee80211_delayed_tailroom_dec(). This could
result in inability to transmit data if driver
crashed during roaming or rekeying and subsequent
skbs with insufficient tailroom appeared.

This race was probably never seen in the wild
because a device driver would have to crash AND
recover within 0.5s which is very unlikely.

I was able to prove this race exists after
changing the delay to 10s locally and crashing
ath10k via debugfs immediately after GTK
rekeying. In case of ath10k the counter went below
0. This was harmless but other drivers which
actually require tailroom (e.g. for WEP ICV or
MMIC) could end up with the counter at 0 instead
of >0 and introduce insufficient skb tailroom
failures because mac80211 would not resize skbs
appropriately anymore.

Fixes: 8d1f7ecd2a ("mac80211: defer tailroom counter manipulation when roaming")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-05-29 13:04:46 +02:00
..
aes_ccm.c mac80111: aes_ccm: cleanup ieee80211_aes_key_setup_encrypt() 2015-03-30 10:40:03 +02:00
aes_ccm.h mac80111: Add CCMP-256 cipher 2015-01-27 11:07:35 +01:00
aes_cmac.c mac80111: Add BIP-CMAC-256 cipher 2015-01-27 11:09:13 +01:00
aes_cmac.h mac80111: Add BIP-CMAC-256 cipher 2015-01-27 11:09:13 +01:00
aes_gcm.c mac80111: aes_gcm: clean up ieee80211_aes_gcm_key_setup_encrypt() 2015-03-30 10:42:02 +02:00
aes_gcm.h mac80111: Add GCMP and GCMP-256 ciphers 2015-01-27 11:06:09 +01:00
aes_gmac.c mac80211: Fix misplaced return in AES-GMAC key setup 2015-03-30 10:38:07 +02:00
aes_gmac.h mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00
agg-rx.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-04-02 16:16:53 -04:00
agg-tx.c mac80211: add an intermediate software queue implementation 2015-04-01 20:44:34 +02:00
cfg.c mac80211: check fast-xmit on station change 2015-05-20 15:08:36 +02:00
cfg.h
chan.c mac80211: adjust reserved chan_ctx when assigned to vif 2015-05-07 14:24:52 +02:00
debug.h mac80211: 802.11p OCB mode support 2014-11-04 13:18:21 +01:00
debugfs.c mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS 2015-05-05 14:21:54 +02:00
debugfs.h
debugfs_key.c mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00
debugfs_key.h
debugfs_netdev.c mac80211: remove drop_unencrypted code 2015-03-20 11:37:36 +01:00
debugfs_netdev.h
debugfs_sta.c mac80211: clean up station debugfs 2015-05-05 14:21:55 +02:00
debugfs_sta.h
driver-ops.h mac80211: extend get_tkip_seq to all keys 2015-05-06 13:29:59 +02:00
ethtool.c mac80211: remove sta->tx_fragments counter 2015-05-05 14:21:55 +02:00
event.c
ht.c mac80211: add VHT support for IBSS 2015-03-30 10:48:26 +02:00
ibss.c mac80211: check fast-xmit if IBSS STA QoS changed 2015-05-11 14:01:36 +02:00
ieee80211_i.h mac80211: fix throughput LED trigger 2015-05-11 19:16:04 +02:00
iface.c mac80211: use per-CPU TX/RX statistics 2015-04-24 11:16:11 +02:00
Kconfig mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS 2015-05-05 14:21:54 +02:00
key.c mac80211: validate cipher scheme PN length better 2015-05-06 13:30:00 +02:00
key.h mac80211: extend get_key() to return PN for all ciphers 2015-05-06 13:30:00 +02:00
led.c mac80211: fix throughput LED trigger 2015-05-11 19:16:04 +02:00
led.h mac80211: make LED triggering depend on activation 2015-05-05 14:21:56 +02:00
main.c mac80211: prevent possible crypto tx tailroom corruption 2015-05-29 13:04:46 +02:00
Makefile mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00
mesh.c Lots of updates for net-next; along with the usual flurry 2015-03-31 16:39:04 -04:00
mesh.h mac80211: implement cfg80211_ops to query mesh proxy path table 2014-10-09 11:19:07 +02:00
mesh_hwmp.c mac80211: remove unnecessary break after return 2014-07-15 16:27:00 -07:00
mesh_pathtbl.c mac80211: implement cfg80211_ops to query mesh proxy path table 2014-10-09 11:19:07 +02:00
mesh_plink.c mac80211: introduce plink lock for plink fields 2015-04-20 13:05:29 +02:00
mesh_ps.c
mesh_sync.c mac80211: remove BUG_ON usage 2014-04-29 17:59:27 +02:00
michael.c
michael.h
mlme.c mac80211: disconnect TDLS stations on STA CSA 2015-05-20 15:14:54 +02:00
ocb.c mac80211: 802.11p OCB mode support 2014-11-04 13:18:21 +01:00
offchannel.c mac80211: let flush() drop packets when possible 2015-01-14 09:31:18 +01:00
pm.c mac80211: start queues if driver rejected wowlan 2015-03-04 10:34:09 +01:00
rate.c mac80211: lock rate control 2015-04-20 13:05:29 +02:00
rate.h mac80211: lock rate control 2015-04-20 13:05:29 +02:00
rc80211_minstrel.c mac80211: add standard deviation to Minstrel stats 2015-04-01 20:44:33 +02:00
rc80211_minstrel.h mac80211: add standard deviation to Minstrel stats 2015-04-01 20:44:33 +02:00
rc80211_minstrel_debugfs.c mac80211: add standard deviation to Minstrel stats 2015-04-01 20:44:33 +02:00
rc80211_minstrel_ht.c mac80211: add max lossless throughput per rate 2015-04-01 20:44:32 +02:00
rc80211_minstrel_ht.h mac80211: add max lossless throughput per rate 2015-04-01 20:44:32 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: add standard deviation to Minstrel stats 2015-04-01 20:44:33 +02:00
rx.c mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS 2015-05-05 14:21:54 +02:00
scan.c mac80211: IBSS fix scan request 2015-03-30 10:47:56 +02:00
spectmgmt.c mac80211: remove unused variable in ieee80211_parse_ch_switch_ie() 2014-12-17 15:45:17 +01:00
sta_info.c mac80211: make station hash table max_size configurable 2015-04-23 17:26:06 +02:00
sta_info.h mac80211: add missing documentation for rate_ctrl_lock 2015-05-06 16:00:32 +02:00
status.c mac80211: move dot11 counters under MAC80211_DEBUG_COUNTERS 2015-05-05 14:21:54 +02:00
tdls.c mac80211: disconnect TDLS stations on STA CSA 2015-05-20 15:14:54 +02:00
tkip.c
tkip.h
trace.c mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
trace.h mac80211: extend get_tkip_seq to all keys 2015-05-06 13:29:59 +02:00
trace_msg.h mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
tx.c mac80211: remove useless skb->encapsulation check 2015-05-05 15:25:33 +02:00
util.c cfg80211: move IE split utilities here from mac80211 2015-04-07 13:56:41 +02:00
vht.c mac80211: TDLS: support VHT between peers 2015-03-03 15:56:07 +01:00
wep.c mac80211: fix network header breakage during encryption 2014-10-23 20:40:01 +02:00
wep.h
wme.c mac80211: synchronously reserve TID per station 2014-11-19 18:45:36 +01:00
wme.h mac80211: add WMM admission control support 2014-10-22 10:42:09 +02:00
wpa.c mac80211: Get IV len from key conf and not cipher scheme 2015-03-17 12:34:26 +01:00
wpa.h mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00