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linux-next/net/mac80211
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Johannes Berg bde59c475e mac80211: fix deadlock in driver-managed RX BA session start 
When an RX BA session is started by the driver, and it has to tell
mac80211 about it, the corresponding bit in tid_rx_manage_offl gets
set and the BA session work is scheduled. Upon testing this bit, it
will call __ieee80211_start_rx_ba_session(), thus deadlocking as it
already holds the ampdu_mlme.mtx, which that acquires again.

Fix this by adding ___ieee80211_start_rx_ba_session(), a version of
the function that requires the mutex already held.

Cc: stable@vger.kernel.org
Fixes: 699cb58c8a ("mac80211: manage RX BA session offload without SKB queue")
Reported-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-09-06 15:22:02 +02:00
..
aes_ccm.c mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_ccm.h mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_cmac.c mac80211: aes-cmac: switch to shash CMAC driver 2017-02-08 09:19:33 +01:00
aes_cmac.h mac80211: aes-cmac: switch to shash CMAC driver 2017-02-08 09:19:33 +01:00
aes_gcm.c mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_gcm.h mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_gmac.c mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_gmac.h mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
agg-rx.c mac80211: fix deadlock in driver-managed RX BA session start 2017-09-06 15:22:02 +02:00
agg-tx.c mac80211: agg-tx: call drv_wake_tx_queue in proper context 2017-09-05 16:25:07 +02:00
cfg.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
chan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-17 15:19:37 -05:00
debug.h mac80211: 802.11p OCB mode support 2014-11-04 13:18:21 +01:00
debugfs_key.c mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
debugfs_key.h
debugfs_netdev.c networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
debugfs_netdev.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
debugfs_sta.c mac80211: Dynamically set CoDel parameters per station 2017-05-17 16:03:40 +02:00
debugfs_sta.h
debugfs.c mac80211: check for allocation failure in debugfs code 2017-02-08 10:05:07 +01:00
debugfs.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
driver-ops.c mac80211: add offset_tsf driver op and use it for mesh 2016-09-30 13:45:44 +02:00
driver-ops.h mac80211: add offset_tsf driver op and use it for mesh 2016-09-30 13:45:44 +02:00
ethtool.c mac80211: move station statistics into sub-structs 2015-10-21 10:08:22 +02:00
fils_aead.c Some more updates: 2017-02-10 14:31:51 -05:00
fils_aead.h mac80211: FILS AEAD protection for station mode association frames 2016-10-27 16:03:25 +02:00
ht.c mac80211: fix deadlock in driver-managed RX BA session start 2017-09-06 15:22:02 +02:00
ibss.c networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
ieee80211_i.h mac80211: fix deadlock in driver-managed RX BA session start 2017-09-06 15:22:02 +02:00
iface.c mac80211: Fix null pointer dereference with iTXQ support 2017-09-05 11:28:51 +02:00
Kconfig mac80211: fils_aead: Use crypto api CMAC shash rather than bare cipher 2017-02-08 09:19:17 +01:00
key.c mac80211: don't call drv_set_default_unicast_key() for VLANs 2016-12-13 15:57:59 +01:00
key.h mac80211: aes-cmac: switch to shash CMAC driver 2017-02-08 09:19:33 +01:00
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: disentangle iflist_mtx and chanctx_mtx 2017-04-26 23:17:44 +02:00
Makefile Makefile: drop -D__CHECK_ENDIAN__ from cflags 2016-12-16 00:13:43 +02:00
mesh_hwmp.c networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
mesh_pathtbl.c mac80211: Use setup_timer instead of init_timer for mesh path 2017-03-16 10:54:04 +01:00
mesh_plink.c networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
mesh_ps.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
mesh_sync.c mac80211: Use appropriate name for functions and messages 2016-12-13 16:22:27 +01:00
mesh.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
mesh.h mac80211: Use appropriate name for functions and messages 2016-12-13 16:22:27 +01:00
michael.c
michael.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
mlme.c mac80211: fix incorrect assignment of reassoc value 2017-09-05 09:04:20 +02:00
ocb.c mac80211: remove rx_stats.last_rx update after sta alloc 2016-04-06 13:18:15 +02:00
offchannel.c mac80211: flush hw_roc_start work before cancelling the ROC 2017-09-05 16:25:07 +02:00
pm.c cfg80211: add request id to cfg80211_sched_scan_*() api 2017-04-28 14:51:43 +02:00
rate.c mac80211: Dynamically set CoDel parameters per station 2017-05-17 16:03:40 +02:00
rate.h mac80211: make rate control tx status API more extensible 2017-04-28 10:57:33 +02:00
rc80211_minstrel_debugfs.c mac80211: minstrel: store probability variance instead of standard deviation 2016-12-15 11:07:52 +01:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel: store probability variance instead of standard deviation 2016-12-15 11:07:52 +01:00
rc80211_minstrel_ht.c mac80211: make rate control tx status API more extensible 2017-04-28 10:57:33 +02:00
rc80211_minstrel_ht.h mac80211: minstrel_ht: move supported bitrate mask out of group data 2016-12-15 11:07:52 +01:00
rc80211_minstrel.c mac80211: make rate control tx status API more extensible 2017-04-28 10:57:33 +02:00
rc80211_minstrel.h mac80211: minstrel: make prob_ewma u16 instead of u32 2016-12-15 11:07:53 +01:00
rx.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
scan.c cfg80211: add request id to cfg80211_sched_scan_*() api 2017-04-28 14:51:43 +02:00
spectmgmt.c networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
sta_info.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
sta_info.h mac80211: manage RX BA session offload without SKB queue 2017-06-08 14:16:29 +02:00
status.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
tdls.c net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
tkip.c mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
tkip.h mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
trace_msg.h mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
trace.c mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
trace.h mac80211: add the action to the drv_ampdu_action tracepoint 2017-06-13 11:06:39 +02:00
tx.c mac80211: fix VLAN handling with TXQs 2017-09-05 11:28:43 +02:00
util.c mac80211: add MESH IE in the correct order 2017-09-05 11:28:51 +02:00
vht.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-17 15:19:37 -05:00
wep.c mac80211: Add RX flag to indicate ICV stripped 2017-01-12 10:15:18 +01:00
wep.h
wme.c mac80211: preserve more bits when building QoS header 2016-10-12 14:17:13 +02:00
wme.h mac80211: add WMM admission control support 2014-10-22 10:42:09 +02:00
wpa.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
wpa.h mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00