======================================================
WARNING: possible circular locking dependency detected
4.14.209-syzkaller #0 Not tainted
------------------------------------------------------
kworker/u4:7/6523 is trying to acquire lock:
 (k-sk_lock-AF_INET){+.+.}, at: [<ffffffff862c27eb>] lock_sock include/net/sock.h:1471 [inline]
 (k-sk_lock-AF_INET){+.+.}, at: [<ffffffff862c27eb>] do_tcp_setsockopt.constprop.0+0xfb/0x1c10 net/ipv4/tcp.c:2562

but task is already holding lock:
 ((&(&cp->cp_send_w)->work)){+.+.}, at: [<ffffffff81373646>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 ((&(&cp->cp_send_w)->work)){+.+.}:
       flush_work+0xad/0x770 kernel/workqueue.c:2889
       __cancel_work_timer+0x321/0x460 kernel/workqueue.c:2964
       rds_tcp_reset_callbacks+0x18d/0x450 net/rds/tcp.c:167
       rds_tcp_accept_one+0x61a/0x8b0 net/rds/tcp_listen.c:194
       rds_tcp_accept_worker+0x4d/0x70 net/rds/tcp.c:407
       process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
       worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
       kthread+0x30d/0x420 kernel/kthread.c:232
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404

-> #0 (k-sk_lock-AF_INET){+.+.}:
       lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
       lock_sock_nested+0xb7/0x100 net/core/sock.c:2796
       lock_sock include/net/sock.h:1471 [inline]
       do_tcp_setsockopt.constprop.0+0xfb/0x1c10 net/ipv4/tcp.c:2562
       tcp_setsockopt net/ipv4/tcp.c:2830 [inline]
       tcp_setsockopt+0xa7/0xc0 net/ipv4/tcp.c:2822
       kernel_setsockopt+0xfb/0x1b0 net/socket.c:3396
       rds_tcp_cork net/rds/tcp_send.c:43 [inline]
       rds_tcp_xmit_path_prepare+0xaf/0xe0 net/rds/tcp_send.c:50
       rds_send_xmit+0x1ae/0x1c00 net/rds/send.c:187
       rds_send_worker+0x6d/0x240 net/rds/threads.c:189
       process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
       worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
       kthread+0x30d/0x420 kernel/kthread.c:232
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock((&(&cp->cp_send_w)->work));
                               lock(k-sk_lock-AF_INET);
                               lock((&(&cp->cp_send_w)->work));
  lock(k-sk_lock-AF_INET);

 *** DEADLOCK ***

2 locks held by kworker/u4:7/6523:
 #0:  ("%s""krdsd"){+.+.}, at: [<ffffffff81373610>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087
 #1:  ((&(&cp->cp_send_w)->work)){+.+.}, at: [<ffffffff81373646>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091

stack backtrace:
CPU: 1 PID: 6523 Comm: kworker/u4:7 Not tainted 4.14.209-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: krdsd rds_send_worker
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258
 check_prev_add kernel/locking/lockdep.c:1905 [inline]
 check_prevs_add kernel/locking/lockdep.c:2022 [inline]
 validate_chain kernel/locking/lockdep.c:2464 [inline]
 __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491
 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
 lock_sock_nested+0xb7/0x100 net/core/sock.c:2796
 lock_sock include/net/sock.h:1471 [inline]
 do_tcp_setsockopt.constprop.0+0xfb/0x1c10 net/ipv4/tcp.c:2562
 tcp_setsockopt net/ipv4/tcp.c:2830 [inline]
 tcp_setsockopt+0xa7/0xc0 net/ipv4/tcp.c:2822
 kernel_setsockopt+0xfb/0x1b0 net/socket.c:3396
 rds_tcp_cork net/rds/tcp_send.c:43 [inline]
 rds_tcp_xmit_path_prepare+0xaf/0xe0 net/rds/tcp_send.c:50
 rds_send_xmit+0x1ae/0x1c00 net/rds/send.c:187
 rds_send_worker+0x6d/0x240 net/rds/threads.c:189
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
device lo entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xa00 vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   BCN EN: 0 (BI=100)
ieee80211 phy17:   beaconing vifs remaining: 0
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0xa00 vif->addr=02:00:00:00:15:00)
ieee80211 phy21:   BCN EN: 0 (BI=100)
ieee80211 phy21:   beaconing vifs remaining: 0
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static)
ieee80211 phy21: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy21: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_stop
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_start
ieee80211 phy21: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:15:00)
ieee80211 phy21:   ERP_CTS_PROT: 0
ieee80211 phy21:   ERP_PREAMBLE: 0
ieee80211 phy21:   ERP_SLOT: 0
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy21: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy21: mac80211_hwsim_start
ieee80211 phy21: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:15:00)
ieee80211 phy21:   ERP_CTS_PROT: 0
ieee80211 phy21:   ERP_PREAMBLE: 0
ieee80211 phy21:   ERP_SLOT: 0
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy21: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy21: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy21: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy21: mac80211_hwsim_start
ieee80211 phy21: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:15:00)
ieee80211 phy21:   ERP_CTS_PROT: 0
ieee80211 phy21:   ERP_PREAMBLE: 0
ieee80211 phy21:   ERP_SLOT: 0
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy21: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy21: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy21: mac80211_hwsim_start
ieee80211 phy21: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:15:00)
ieee80211 phy21:   ERP_CTS_PROT: 0
ieee80211 phy21:   ERP_PREAMBLE: 0
ieee80211 phy21:   ERP_SLOT: 0
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy21: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy21: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy21: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy21: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_configure_filter
ieee80211 phy21: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:15:00)
ieee80211 phy21: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
device lo entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
device lo entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
ieee80211 phy17: mac80211_hwsim_configure_filter
device wlan1 entered promiscuous mode
ieee80211 phy17: mac80211_hwsim_configure_filter
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_configure_filter
ieee80211 phy17: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_stop
device wlan1 left promiscuous mode
ieee80211 phy17: mac80211_hwsim_start
ieee80211 phy17: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:11:00)
ieee80211 phy17:   ERP_CTS_PROT: 0
ieee80211 phy17:   ERP_PREAMBLE: 0
ieee80211 phy17:   ERP_SLOT: 0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2)
==================================================================
BUG: KASAN: slab-out-of-bounds in tipc_nametbl_lookup_dst_nodes+0x44c/0x4c0 net/tipc/name_table.c:670
Read of size 4 at addr ffff8880a0010ed0 by task syz-executor.2/7751

CPU: 0 PID: 7751 Comm: syz-executor.2 Not tainted 4.14.209-syzkaller #0
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x194 mm/kasan/report.c:351
 kasan_report mm/kasan/report.c:409 [inline]
 __asan_report_load4_noabort+0x68/0x70 mm/kasan/report.c:429
 tipc_nametbl_lookup_dst_nodes+0x44c/0x4c0 net/tipc/name_table.c:670
 tipc_sendmcast+0x51a/0xac0 net/tipc/socket.c:767
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7)
 __tipc_sendmsg+0xbab/0xf90 net/tipc/socket.c:971
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:919
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
device wlan1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
 __sys_sendmsg+0xa3/0x120 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
ieee80211 phy17: mac80211_hwsim_configure_filter
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45deb9
RSP: 002b:00007f8e3bb7bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002e7c0 RCX: 000000000045deb9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffcd00d97df R14: 00007f8e3bb7c9c0 R15: 000000000118bf2c

Allocated by task 8007:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
 __do_kmalloc mm/slab.c:3720 [inline]
 __kmalloc+0x15a/0x400 mm/slab.c:3729
 tipc_nameseq_create+0x53/0x290 net/tipc/name_table.c:152
 tipc_nametbl_insert_publ+0xb37/0x14e0 net/tipc/name_table.c:476
 tipc_nametbl_publish+0x211/0x3f0 net/tipc/name_table.c:701
 tipc_sk_publish net/tipc/socket.c:2203 [inline]
 tipc_bind+0x2c4/0x600 net/tipc/socket.c:629
 tipc_create_listen_sock net/tipc/server.c:338 [inline]
 tipc_open_listening_sock net/tipc/server.c:396 [inline]
 tipc_server_start+0x31f/0x880 net/tipc/server.c:611
 tipc_topsrv_start net/tipc/subscr.c:382 [inline]
 tipc_topsrv_init_net+0x53b/0x730 net/tipc/subscr.c:397
 ops_init+0xaa/0x3e0 net/core/net_namespace.c:118
 setup_net+0x22f/0x530 net/core/net_namespace.c:295
 copy_net_ns+0x19b/0x440 net/core/net_namespace.c:419
 create_new_namespaces+0x375/0x720 kernel/nsproxy.c:107
 unshare_nsproxy_namespaces+0xa1/0x1d0 kernel/nsproxy.c:206
 SYSC_unshare kernel/fork.c:2412 [inline]
 SyS_unshare+0x308/0x7f0 kernel/fork.c:2362
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

Freed by task 4613:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xc9/0x250 mm/slab.c:3815
 aa_free_task_context+0xda/0x130 security/apparmor/context.c:54
 apparmor_cred_free+0x34/0x70 security/apparmor/lsm.c:58
 security_cred_free+0x71/0xb0 security/security.c:1003
 put_cred_rcu+0xe3/0x300 kernel/cred.c:117
 __put_cred+0x1a1/0x210 kernel/cred.c:151
 put_cred include/linux/cred.h:271 [inline]
 SYSC_faccessat fs/open.c:444 [inline]
 SyS_faccessat+0x52a/0x680 fs/open.c:353
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

The buggy address belongs to the object at ffff8880a0010ec0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 16 bytes inside of
 32-byte region [ffff8880a0010ec0, ffff8880a0010ee0)
The buggy address belongs to the page:
page:ffffea0002800400 count:1 mapcount:0 mapping:ffff8880a0010000 index:0xffff8880a0010fc1
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffff8880a0010000 ffff8880a0010fc1 000000010000003a
raw: ffffea00028cdf20 ffffea000292efa0 ffff88813fe801c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a0010d80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8880a0010e00: fb fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
>ffff8880a0010e80: fb fb fb fb fc fc fc fc 00 00 fc fc fc fc fc fc
                                                 ^
 ffff8880a0010f00: 00 00 fc fc fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8880a0010f80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================