INFO: task udevd:5257 blocked for more than 143 seconds. Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:24472 pid:5257 tgid:5257 ppid:4550 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 btrfs_control_ioctl+0x150/0x3e0 fs/btrfs/super.c:2225 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb254b1ad49 RSP: 002b:00007ffdca87c1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb254b1ad49 RDX: 00007ffdca87c1b8 RSI: 0000000090009427 RDI: 0000000000000009 RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdca87d1f8 R14: 000055fe40a01d00 R15: 00007ffdca87df18 INFO: task syz-executor.0:5290 blocked for more than 143 seconds. Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:25048 pid:5290 tgid:5289 ppid:5110 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 btrfs_get_tree_super fs/btrfs/super.c:1802 [inline] btrfs_get_tree+0x2dc/0x1920 fs/btrfs/super.c:2081 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 fc_mount+0x1b/0xb0 fs/namespace.c:1125 btrfs_get_tree_subvol fs/btrfs/super.c:2044 [inline] btrfs_get_tree+0x652/0x1920 fs/btrfs/super.c:2082 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb433c7f46a RSP: 002b:00007fb434a95ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fb434a95f80 RCX: 00007fb433c7f46a RDX: 0000000020000080 RSI: 0000000020000000 RDI: 00007fb434a95f40 RBP: 0000000020000080 R08: 00007fb434a95f80 R09: 0000000000000016 R10: 0000000000000016 R11: 0000000000000202 R12: 0000000020000000 R13: 00007fb434a95f40 R14: 0000000000005104 R15: 0000000020000180 INFO: task syz-executor.3:5296 blocked for more than 144 seconds. Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25360 pid:5296 tgid:5295 ppid:5118 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x355/0x620 kernel/sched/completion.c:148 __flush_work+0xaa9/0xd00 kernel/workqueue.c:4211 __lru_add_drain_all+0x504/0x570 mm/swap.c:902 invalidate_bdev+0x76/0xa0 block/bdev.c:100 btrfs_get_bdev_and_sb+0x11a/0x1c0 fs/btrfs/volumes.c:492 btrfs_open_one_device fs/btrfs/volumes.c:657 [inline] open_fs_devices+0x2b4/0x1290 fs/btrfs/volumes.c:1196 btrfs_get_tree_super fs/btrfs/super.c:1818 [inline] btrfs_get_tree+0x504/0x1920 fs/btrfs/super.c:2081 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 fc_mount+0x1b/0xb0 fs/namespace.c:1125 btrfs_get_tree_subvol fs/btrfs/super.c:2044 [inline] btrfs_get_tree+0x652/0x1920 fs/btrfs/super.c:2082 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f52d447f46a RSP: 002b:00007f52d52abef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f52d52abf80 RCX: 00007f52d447f46a RDX: 0000000020000000 RSI: 0000000020000140 RDI: 00007f52d52abf40 RBP: 0000000020000000 R08: 00007f52d52abf80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000140 R13: 00007f52d52abf40 R14: 000000000000559e R15: 0000000020000280 INFO: task udevd:5297 blocked for more than 146 seconds. Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:25584 pid:5297 tgid:5297 ppid:4550 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 btrfs_control_ioctl+0x150/0x3e0 fs/btrfs/super.c:2225 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb254b1ad49 RSP: 002b:00007ffdca87c1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb254b1ad49 RDX: 00007ffdca87c1b8 RSI: 0000000090009427 RDI: 0000000000000009 RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdca87d1f8 R14: 000055fe40a01d00 R15: 00007ffdca87df18 Showing all locks held in the system: 3 locks held by kworker/0:0/8: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900000d7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900000d7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5e6b08 ( rtnl_mutex ){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 12 locks held by kworker/1:0/25: 1 lock held by khungtaskd/30: #0: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 5 locks held by kworker/u8:3/51: 3 locks held by kworker/u9:0/53: #0: ffff88807b01c948 ( (wq_completion)hci5){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] (wq_completion)hci5){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90000bd7d00 ( (work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88802246cd88 ( &hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:309 3 locks held by kworker/u8:12/2836: #0: ffff88802a05e948 ((wq_completion)ipv6_addrconf ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000a03fd00 ( (work_completion)(&(&net->ipv6.addr_chk_work)->work) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733 2 locks held by getty/4851: #0: ffff88802acbe0a0 (&tty->ldisc_sem){++++}-{0:0} , at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f162f0 ( &ldata->atomic_read_lock ){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.2/5112: #0: ffffffff8f5e6b08 ( rtnl_mutex ){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3500 2 locks held by syz-executor.4/5117: #0: ffff88807cd000e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] ffff88807cd000e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] ffff88807cd000e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8e3ec228 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x570 mm/swap.c:857 3 locks held by kworker/1:4/5123: #0: ffff888015081948 ( (wq_completion)events_power_efficient ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000393fd00 ( (crda_timeout).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] (crda_timeout).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: crda_timeout_work+0x15/0x50 net/wireless/reg.c:540 4 locks held by udevd/5163: #0: ffff88807c9c6b08 ( &p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182 #1: ffff88805d189888 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff88802377a2d8 (kn->active#25){.+.+}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff8880298af190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:1014 [inline] #3: ffff8880298af190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142 1 lock held by udevd/5257: #0: ffffffff8e8a4a68 ( uuid_mutex){+.+.}-{3:3}, at: btrfs_control_ioctl+0x150/0x3e0 fs/btrfs/super.c:2225 1 lock held by syz-executor.0/5290: #0: ffffffff8e8a4a68 ( uuid_mutex ){+.+.}-{3:3}, at: btrfs_get_tree_super fs/btrfs/super.c:1802 [inline] ){+.+.}-{3:3}, at: btrfs_get_tree+0x2dc/0x1920 fs/btrfs/super.c:2081 2 locks held by syz-executor.3/5296: #0: ffffffff8e8a4a68 ( uuid_mutex){+.+.}-{3:3}, at: btrfs_get_tree_super fs/btrfs/super.c:1802 [inline] uuid_mutex){+.+.}-{3:3}, at: btrfs_get_tree+0x2dc/0x1920 fs/btrfs/super.c:2081 #1: ffffffff8e3ec228 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x570 mm/swap.c:857 1 lock held by udevd/5297: #0: ffffffff8e8a4a68 (uuid_mutex){+.+.}-{3:3}, at: btrfs_control_ioctl+0x150/0x3e0 fs/btrfs/super.c:2225 2 locks held by syz-executor.1/5308: #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3500 #1: ffffffff8e1ce470 (cpu_hotplug_lock){++++}-{0:0} , at: flush_all_backlogs net/core/dev.c:5984 [inline] , at: unregister_netdevice_many_notify+0x607/0x16e0 net/core/dev.c:11209 1 lock held by syz-executor.3/5336: #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592 2 locks held by syz-executor.0/5343: #0: ffffffff8f5da2d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3} , at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 2 locks held by syz-executor.1/5345: #0: ffffffff8f5da2d0 ( pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 1 lock held by syz-executor.2/5351: #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592 1 lock held by syz-executor.3/5354: #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592 1 lock held by syz-executor.0/5357: #0: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592 1 lock held by syz-executor.1/5360: #0: ffffffff8f5e6b08 ( rtnl_mutex){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592 1 lock held by syz-executor.2/5363: #0: ffffffff8f5e6b08 ( rtnl_mutex ){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592 2 locks held by dhcpcd/5370: #0: ffff888051896258 ( sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1595 [inline] sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3202 #1: ffffffff8e339238 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #1: ffffffff8e339238 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 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: yealink 2-1:36.0: unexpected response 0 yealink 2-1:36.0: urb_ctl_callback - urb status -71 yealink 2-1:36.0: urb_irq_callback - urb status -71 yealink 2-1:36.0: unexpected response 0 yealink 2-1:36.0: urb_ctl_callback - urb status -71 NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: migration/1 Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Stopper: 0x0 <- 0x0 RIP: 0010:io_serial_out+0x7e/0xc0 drivers/tty/serial/8250/8250_port.c:413 Code: fc 89 e9 41 d3 e7 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 bc 16 bd fc 44 03 3b 44 89 f0 44 89 fa ee <5b> 41 5c 41 5e 41 5f 5d c3 cc cc cc cc 89 e9 80 e1 07 38 c1 7c a7 RSP: 0018:ffffc90000a17a70 EFLAGS: 00000002 RAX: 0000000000000030 RBX: ffffffff94ad81a0 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: 000000000001114d RDI: 000000000001114e RBP: 0000000000000000 R08: ffffffff853ebe3b R09: 1ffff11003f25046 R10: dffffc0000000000 R11: ffffffff853ebdf0 R12: dffffc0000000000 R13: 0000000000000030 R14: 0000000000000030 R15: 00000000000003f8 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fe40a04690 CR3: 000000000e132000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial8250_console_write+0x1212/0x1770 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:2928 [inline] console_flush_all+0x865/0xfd0 kernel/printk/printk.c:2994 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3063 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2345 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4951 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4962 _dev_err+0x122/0x170 drivers/base/core.c:5017 urb_ctl_callback+0x1d3/0x290 drivers/input/misc/yealink.c:454 __usb_hcd_giveback_urb+0x373/0x530 drivers/usb/core/hcd.c:1648 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:memset_orig+0x82/0xb0 arch/x86/lib/memset_64.S:99 Code: 0f 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 48 89 07 48 8d 7f 08 75 f5 83 e2 07 74 0a ff ca <88> 07 48 8d 7f 01 75 f6 4c 89 d0 c3 cc cc cc cc 48 83 fa 07 76 e3 RSP: 0018:ffffc90000a18ab8 EFLAGS: 00000202 RAX: fbfbfbfbfbfbfbfb RBX: ffff88807e323140 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 00000000000000fb RDI: ffffed100fc64644 RBP: ffffffff86f0ab8f R08: dffffc0000000000 R09: 0000000000000000 R10: ffffed100fc64628 R11: fffffbfff1f5a67e R12: ffffea0001f8c8c0 R13: 0000000000000000 R14: ffff888018ea1780 R15: 0000000000000000 poison_slab_object+0xd5/0x150 mm/kasan/common.c:236 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2195 [inline] slab_free mm/slub.c:4436 [inline] kmem_cache_free+0x145/0x350 mm/slub.c:4511 mac80211_hwsim_beacon_tx+0x3bf/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2306 __iterate_interfaces+0x223/0x4c0 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:808 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2336 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1751 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1768 handle_softirqs+0x2d6/0x990 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5282 Code: c9 50 e8 c9 d4 0b 00 48 83 c4 08 4c 89 f7 e8 ed 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 d0 c3 2e 0a e8 9b cb 36 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0018:ffffc900001d7b88 EFLAGS: 00000282 RAX: 7e2bbb49bebe6800 RBX: ffff888017aeda00 RCX: ffffffff947aa603 RDX: dffffc0000000000 RSI: ffffffff8bcab500 RDI: ffffffff8c1fdcc0 RBP: ffffc900001d7bd0 R08: ffffffff8fad33ef R09: 1ffffffff1f5a67d R10: dffffc0000000000 R11: fffffbfff1f5a67e R12: 1ffff110172a7ea7 R13: dffffc0000000000 R14: ffff8880b953e7c0 R15: ffff8880b953f538 context_switch kernel/sched/core.c:5411 [inline] __schedule+0x17f0/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 smpboot_thread_fn+0x61e/0xa30 kernel/smpboot.c:160 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244