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android_kernel_xiaomi_sm8450/net/mac80211
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Dmitry Antipov f232916fab wifi: mac80211: use two-phase skb reclamation in ieee80211_do_stop() 
[ Upstream commit 9d301de12da6e1bb069a9835c38359b8e8135121 ]

Since '__dev_queue_xmit()' should be called with interrupts enabled,
the following backtrace:

ieee80211_do_stop()
 ...
 spin_lock_irqsave(&local->queue_stop_reason_lock, flags)
 ...
 ieee80211_free_txskb()
  ieee80211_report_used_skb()
   ieee80211_report_ack_skb()
    cfg80211_mgmt_tx_status_ext()
     nl80211_frame_tx_status()
      genlmsg_multicast_netns()
       genlmsg_multicast_netns_filtered()
        nlmsg_multicast_filtered()
	 netlink_broadcast_filtered()
	  do_one_broadcast()
	   netlink_broadcast_deliver()
	    __netlink_sendskb()
	     netlink_deliver_tap()
	      __netlink_deliver_tap_skb()
	       dev_queue_xmit()
	        __dev_queue_xmit() ; with IRQS disabled
 ...
 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags)

issues the warning (as reported by syzbot reproducer):

WARNING: CPU: 2 PID: 5128 at kernel/softirq.c:362 __local_bh_enable_ip+0xc3/0x120

Fix this by implementing a two-phase skb reclamation in
'ieee80211_do_stop()', where actual work is performed
outside of a section with interrupts disabled.

Fixes: 5061b0c2b9 ("mac80211: cooperate more with network namespaces")
Reported-by: syzbot+1a3986bbd3169c307819@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=1a3986bbd3169c307819
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://patch.msgid.link/20240906123151.351647-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-10-17 15:07:40 +02:00
..
aead_api.c mac80211: Check crypto_aead_encrypt for errors 2021-04-10 13:36:08 +02:00
aead_api.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_ccm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_cmac.c mac80211: Update BIP to support Beacon frames 2020-02-24 10:36:03 +01:00
aes_cmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gcm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gmac.c mac80211: Check crypto_aead_encrypt for errors 2021-04-10 13:36:08 +02:00
aes_gmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
agg-rx.c mac80211: fix lookup when adding AddBA extension element 2021-12-22 09:30:54 +01:00
agg-tx.c wifi: mac80211: fix BA session teardown race 2024-09-04 13:17:33 +02:00
airtime.c wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration 2022-12-08 11:23:56 +01:00
cfg.c wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes 2024-04-13 12:59:03 +02:00
chan.c wifi: mac80211: fix use-after-free in chanctx code 2022-06-09 10:21:22 +02:00
debug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs_key.c mac80211: Support BIGTK configuration for Beacon protection 2020-02-24 10:35:57 +01:00
debugfs_key.h mac80211: Support BIGTK configuration for Beacon protection 2020-02-24 10:35:57 +01:00
debugfs_netdev.c cfg80211/mac80211: add connected to auth server to meshconf 2020-07-31 09:24:24 +02:00
debugfs_netdev.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs_sta.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2020-03-29 21:25:29 -07:00
debugfs_sta.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c mac80211: fix incorrect strlen of .write in debugfs 2021-02-07 15:37:15 +01:00
debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
driver-ops.c wifi: mac80211: fix BA session teardown race 2024-09-04 13:17:33 +02:00
driver-ops.h mac80211: mark TX-during-stop for TX in in_reconfig 2021-12-22 09:30:50 +01:00
ethtool.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432 2019-06-05 17:37:16 +02:00
fils_aead.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
fils_aead.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
he.c wifi: mac80211: correctly parse Spatial Reuse Parameter Set element 2024-07-05 09:12:21 +02:00
ht.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
ibss.c wifi: mac80211: Don't finalize CSA in IBSS mode if state is disconnected 2022-09-08 11:11:40 +02:00
ieee80211_i.h wifi: mac80211: fix ieee80211_bss_*_flags kernel-doc 2024-05-17 11:48:02 +02:00
iface.c wifi: mac80211: use two-phase skb reclamation in ieee80211_do_stop() 2024-10-17 15:07:40 +02:00
Kconfig ath9k: fix build error with LEDS_CLASS=m 2021-02-17 11:02:25 +01:00
key.c mac80211: prevent mixed key and fragment cache attacks 2021-06-03 09:00:29 +02:00
key.h mac80211: prevent mixed key and fragment cache attacks 2021-06-03 09:00:29 +02:00
led.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
led.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
main.c wifi: mac80211: fix memory free error when registering wiphy fail 2022-12-02 17:39:57 +01:00
Makefile mac80211: initialize last_rate for S1G STAs 2020-10-08 10:40:57 +02:00
mesh_hwmp.c mac80211: fix potential overflow when multiplying to u32 integers 2021-03-04 11:37:32 +01:00
mesh_pathtbl.c wifi: mac80211: mesh: Fix leak of mesh_preq_queue objects 2024-07-05 09:12:20 +02:00
mesh_plink.c wifi: mac80211: mesh_plink: fix matches_local logic 2024-01-05 15:12:23 +01:00
mesh_ps.c mac80211: mesh: fix potentially unaligned access 2021-10-06 15:55:52 +02:00
mesh_sync.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mesh.c wifi: mac80211: mesh: init nonpeer_pm to active by default in mesh sdata 2024-07-27 10:40:17 +02:00
mesh.h mac80211: mesh: embedd mesh_paths and mpp_paths into ieee80211_if_mesh 2023-02-25 11:55:03 +01:00
michael.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
michael.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mlme.c wifi: mac80211: fix MBSSID parsing use-after-free 2022-10-17 17:26:07 +02:00
ocb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
offchannel.c mac80211: Inform AP when returning operating channel 2020-09-28 13:18:53 +02:00
pm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rate.c mac80211: fix station rate table updates on assoc 2021-02-10 09:29:16 +01:00
rate.h mac80211: populate debugfs only after cfg80211 init 2020-04-24 11:30:13 +02:00
rc80211_minstrel_debugfs.c mac80211: minstrel_ht: rename prob_ewma to prob_avg, use it for the new average 2019-10-11 10:31:45 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel_ht: rename prob_ewma to prob_avg, use it for the new average 2019-10-11 10:31:45 +02:00
rc80211_minstrel_ht.c One batch of changes, containing: 2020-05-26 20:17:35 -07:00
rc80211_minstrel_ht.h mac80211: minstrel_ht: rename prob_ewma to prob_avg, use it for the new average 2019-10-11 10:31:45 +02:00
rc80211_minstrel.c mac80211: minstrel: fix tx status processing corner case 2020-11-12 11:25:09 +01:00
rc80211_minstrel.h mac80211: minstrel: remove deferred sampling code 2020-11-12 11:24:43 +01:00
rx.c kcov: Remove kcov include from sched.h and move it to its users. 2024-05-17 11:48:07 +02:00
s1g.c mac80211: initialize last_rate for S1G STAs 2020-10-08 10:40:57 +02:00
scan.c wifi: mac80211: fix UBSAN noise in ieee80211_prep_hw_scan() 2024-07-27 10:40:17 +02:00
spectmgmt.c mac80211: 160MHz with extended NSS BW in CSA 2021-02-13 13:55:04 +01:00
sta_info.c wifi: mac80211: fix BA session teardown race 2024-09-04 13:17:33 +02:00
sta_info.h mac80211: fix regression in SSN handling of addba tx 2021-12-22 09:30:50 +01:00
status.c mac80211: fix memory leak on filtered powersave frames 2020-11-12 11:23:58 +01:00
tdls.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
tkip.c mac80211: Fix TKIP replay protection immediately after key setup 2020-01-15 09:52:12 +01:00
tkip.h Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
trace_msg.h mac80211: Increase MAX_MSG_LEN 2019-03-29 11:20:36 +01:00
trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.h wifi: mac80211: fix min center freq offset tracing 2023-05-30 12:57:53 +01:00
tx.c wifi: mac80211: fix race condition on enabling fast-xmit 2024-03-01 13:16:43 +01:00
util.c wifi: mac80211: fix MBSSID parsing use-after-free 2022-10-17 17:26:07 +02:00
vht.c mac80211: don't set set TDLS STA bandwidth wider than possible 2020-12-30 11:53:50 +01:00
wep.c mac80211: make ieee80211_wep_init() return void 2020-02-07 12:40:34 +01:00
wep.h mac80211: make ieee80211_wep_init() return void 2020-02-07 12:40:34 +01:00
wme.c wifi: mac80211: fix qos on mesh interfaces 2023-04-05 11:23:41 +02:00
wme.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
wpa.c mac80211: fix use-after-free in CCMP/GCMP RX 2021-10-06 15:55:48 +02:00
wpa.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00