INFO: task syz-executor.4:7065 blocked for more than 143 seconds. Not tainted 6.9.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:13656 pid:7065 tgid:7063 ppid:6209 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x70a/0x1520 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xac/0x140 kernel/sched/core.c:6838 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6895 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0x51f/0x5c0 net/netlink/genetlink.c:1208 netlink_rcv_skb+0xe8/0x1c0 net/netlink/af_netlink.c:2559 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x479/0x540 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x4e5/0x5c0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xca/0xf0 net/socket.c:745 ____sys_sendmsg+0x26e/0x360 net/socket.c:2584 ___sys_sendmsg+0x2f0/0x330 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg+0x145/0x1c0 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8f/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f827767cf69 RSP: 002b:00007f82784620c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f82777b3f80 RCX: 00007f827767cf69 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007f82776da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f82777b3f80 R15: 00007ffc47fe7fc8 INFO: task syz-executor:7067 blocked for more than 143 seconds. Not tainted 6.9.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:13656 pid:7067 tgid:7064 ppid:6205 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x70a/0x1520 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xac/0x140 kernel/sched/core.c:6838 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6895 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0x51f/0x5c0 net/netlink/genetlink.c:1208 netlink_rcv_skb+0xe8/0x1c0 net/netlink/af_netlink.c:2559 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x479/0x540 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x4e5/0x5c0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xca/0xf0 net/socket.c:745 ____sys_sendmsg+0x26e/0x360 net/socket.c:2584 ___sys_sendmsg+0x2f0/0x330 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg+0x145/0x1c0 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8f/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f400b87cf69 RSP: 002b:00007f400b3ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f400b9b3f80 RCX: 00007f400b87cf69 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007f400b8da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f400b9b3f80 R15: 00007ffc9924b998 INFO: task syz-executor.1:7068 blocked for more than 143 seconds. Not tainted 6.9.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:13656 pid:7068 tgid:7066 ppid:6204 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x70a/0x1520 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xac/0x140 kernel/sched/core.c:6838 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6895 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0x51f/0x5c0 net/netlink/genetlink.c:1208 netlink_rcv_skb+0xe8/0x1c0 net/netlink/af_netlink.c:2559 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x479/0x540 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x4e5/0x5c0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xca/0xf0 net/socket.c:745 ____sys_sendmsg+0x26e/0x360 net/socket.c:2584 ___sys_sendmsg+0x2f0/0x330 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg+0x145/0x1c0 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8f/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f826b27cf69 RSP: 002b:00007f826bf8d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f826b3b3f80 RCX: 00007f826b27cf69 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007f826b2da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f826b3b3f80 R15: 00007ffce077ed68 INFO: task syz-executor.3:7075 blocked for more than 144 seconds. Not tainted 6.9.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:13656 pid:7075 tgid:7074 ppid:6214 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x70a/0x1520 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xac/0x140 kernel/sched/core.c:6838 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6895 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0x51f/0x5c0 net/netlink/genetlink.c:1208 netlink_rcv_skb+0xe8/0x1c0 net/netlink/af_netlink.c:2559 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x479/0x540 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x4e5/0x5c0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xca/0xf0 net/socket.c:745 ____sys_sendmsg+0x26e/0x360 net/socket.c:2584 ___sys_sendmsg+0x2f0/0x330 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg+0x145/0x1c0 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8f/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7518e7cf69 RSP: 002b:00007f7519b580c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7518fb3f80 RCX: 00007f7518e7cf69 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007f7518eda6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f7518fb3f80 R15: 00007fffee162278 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8740c2b0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8740c2b0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8740c2b0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x30/0x100 kernel/locking/lockdep.c:6614 7 locks held by kworker/u8:3/43: 2 locks held by kworker/u8:9/3003: 2 locks held by getty/5028: #0: ffff88810dd1c8a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x50 drivers/tty/tty_ldisc.c:243 #1: ffffc9000bfcb2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x34e/0xf50 drivers/tty/n_tty.c:2201 2 locks held by syz-executor.2/7062: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.4/7065: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor/7067: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.1/7068: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.3/7075: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor/7133: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.2/7147: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.4/7164: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.1/7171: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.3/7179: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor/7204: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.2/7250: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.4/7257: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.1/7260: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.3/7267: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor/7284: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.2/7302: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.4/7346: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.1/7349: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.3/7356: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor/7377: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.2/7393: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.4/7425: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.1/7442: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 2 locks held by syz-executor.3/7450: #0: ffffffff878ad468 (cb_lock){....}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216 #1: ffffffff874f2cb8 (nfsd_mutex){....}-{3:3}, at: nfsd_nl_listener_set_doit+0x60/0xaf0 fs/nfsd/nfsctl.c:1966 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x10e/0x1b0 lib/dump_stack.c:114 nmi_cpu_backtrace+0x234/0x250 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x102/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0x8ba/0x8f0 kernel/hung_task.c:380 kthread+0x114/0x140 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3003 Comm: kworker/u8:9 Not tainted 6.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] RIP: 0010:rcu_is_watching+0x12/0x40 kernel/rcu/tree.c:700 Code: 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 ff 05 ad 5f c3 7e e8 30 d0 59 04 89 c0 <48> 8b 04 c5 e0 29 f6 86 8b 80 88 ba 02 00 65 ff 0d 91 5f c3 7e 74 RSP: 0018:ffffc9000911bb88 EFLAGS: 00000286 RAX: 0000000000000001 RBX: ffff888129190150 RCX: ffffffff8551fe42 RDX: 0000000000000000 RSI: ffffffff86e715a6 RDI: ffffffff86b8e8b8 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc9000911ba58 R11: ffff88810ed79c80 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888129190168 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d1034bc030 CR3: 00000000072ca000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x51/0x1f0 kernel/locking/lockdep.c:5725 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] cfg80211_put_bss+0x32/0x140 net/wireless/scan.c:3184 ieee80211_rx_bss_info net/mac80211/ibss.c:1171 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline] ieee80211_ibss_rx_queued_mgmt+0x987/0x1200 net/mac80211/ibss.c:1605 ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline] ieee80211_iface_work+0x561/0x800 net/mac80211/iface.c:1659 cfg80211_wiphy_work+0xe0/0x100 net/wireless/core.c:437 process_one_work kernel/workqueue.c:3267 [inline] process_scheduled_works+0x39f/0x920 kernel/workqueue.c:3348 worker_thread+0x35a/0x4d0 kernel/workqueue.c:3429 kthread+0x114/0x140 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244