INFO: task syz-executor:32528 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller-00223-gc6653f49e4fd #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:27072 pid:32528 tgid:32528 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 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+0x5b8/0x9c0 kernel/locking/mutex.c:752 add_one_compat_dev+0x112/0x720 drivers/infiniband/core/device.c:943 rdma_dev_init_net+0x2b2/0x530 drivers/infiniband/core/device.c:1185 ops_init+0xb9/0x650 net/core/net_namespace.c:139 setup_net+0x435/0xb40 net/core/net_namespace.c:343 copy_net_ns+0x2f0/0x670 net/core/net_namespace.c:508 create_new_namespaces+0x3ea/0xb10 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:228 ksys_unshare+0x419/0x970 kernel/fork.c:3323 __do_sys_unshare kernel/fork.c:3394 [inline] __se_sys_unshare kernel/fork.c:3392 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:3392 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1c12777337 RSP: 002b:00007ffc38baaf68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f1c12903f20 RCX: 00007f1c12777337 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007f1c12904a18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 2 locks held by kworker/1:1/45: 3 locks held by kworker/u8:4/58: #0: ffff88802a28b948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223 #1: ffffc90001447d80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224 #2: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4733 4 locks held by kworker/1:1H/99: 2 locks held by getty/4841: #0: ffff88802b01c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211 2 locks held by kworker/0:5/5132: #0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223 #1: ffffc9000386fd80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224 6 locks held by kworker/u8:11/5599: #0: ffff8880162d3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223 #1: ffffc900033b7d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224 #2: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:594 #3: ffff888075ce80e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff888075ce80e8 (&dev->mutex){....}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline] #3: ffff888075ce80e8 (&dev->mutex){....}-{3:3}, at: devlink_pernet_pre_exit+0x12d/0x2b0 net/devlink/core.c:506 #4: ffff888075ceb250 (&devlink->lock_key#72){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline] #4: ffff888075ceb250 (&devlink->lock_key#72){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline] #4: ffff888075ceb250 (&devlink->lock_key#72){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x137/0x2b0 net/devlink/core.c:506 #5: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x6f/0x6a0 drivers/net/netdevsim/netdev.c:773 4 locks held by kworker/0:3/11941: #0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223 #1: ffffc9000387fd80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224 #2: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276 #3: ffffffff8dbbcdb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323 3 locks held by kworker/u8:16/20912: 3 locks held by kworker/1:7/22957: 5 locks held by kworker/u8:13/28158: #0: ffff8880b923ebd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559 #1: ffff8880b9228a08 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:988 #2: ffff8880b922a858 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5d/0x220 kernel/time/timer.c:1051 #3: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #3: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #3: ffffffff8dbb1620 (rcu_read_lock){....}-{1:2}, at: ieee80211_sta_active_ibss+0xe7/0x420 net/mac80211/ibss.c:642 #4: ffffffff94d52b50 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:978 [inline] #4: ffffffff94d52b50 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0x1d0/0x600 lib/debugobjects.c:1019 3 locks held by kworker/0:4/28769: #0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223 #1: ffffc90004787d80 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224 #2: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 7 locks held by kworker/1:8/29968: 2 locks held by syz-executor/32520: #0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504 #1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x218/0x780 net/ipv4/ip_tunnel.c:1159 2 locks held by syz-executor/32522: #0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504 #1: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x218/0x780 net/ipv4/ip_tunnel.c:1159 5 locks held by syz-executor/32524: #0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504 #1: ffffffff8f3bc410 (devices_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x234/0x530 drivers/infiniband/core/device.c:1179 #2: ffffffff8f3bc190 (rdma_nets_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x2a7/0x530 drivers/infiniband/core/device.c:1184 #3: ffff88807b3d4f30 (&device->compat_devs_mutex){+.+.}-{3:3}, at: add_one_compat_dev+0x112/0x720 drivers/infiniband/core/device.c:943 #4: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ib_get_eth_speed+0x118/0xb50 drivers/infiniband/core/verbs.c:1983 6 locks held by syz-executor/32526: #0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504 #1: ffffffff8f3bc410 (devices_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x234/0x530 drivers/infiniband/core/device.c:1179 #2: ffffffff8f3bc190 (rdma_nets_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x2a7/0x530 drivers/infiniband/core/device.c:1184 #3: ffff888077a98f30 (&device->compat_devs_mutex){+.+.}-{3:3}, at: add_one_compat_dev+0x112/0x720 drivers/infiniband/core/device.c:943 #4: ffff888077a99160 (&rxe->usdev_lock){+.+.}-{3:3}, at: rxe_query_port+0x5d/0x200 drivers/infiniband/sw/rxe/rxe_verbs.c:54 #5: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: ib_get_eth_speed+0x118/0xb50 drivers/infiniband/core/verbs.c:1983 4 locks held by syz-executor/32528: #0: ffffffff8f732e90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2cb/0x670 net/core/net_namespace.c:504 #1: ffffffff8f3bc410 (devices_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x234/0x530 drivers/infiniband/core/device.c:1179 #2: ffffffff8f3bc190 (rdma_nets_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x2a7/0x530 drivers/infiniband/core/device.c:1184 #3: ffff888077a98f30 (&device->compat_devs_mutex){+.+.}-{3:3}, at: add_one_compat_dev+0x112/0x720 drivers/infiniband/core/device.c:943 4 locks held by syz-executor/32531: #0: ffff888062b2cd88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510 #1: ffff888062b2c078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063 #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline] #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593 #3: ffffffff8dbbcdb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323 3 locks held by syz-executor/32537: #0: ffff8880545ccd88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510 #1: ffff8880545cc078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063 #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline] #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593 3 locks held by syz-executor/32539: #0: ffff8880241e8d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510 #1: ffff8880241e8078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063 #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline] #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593 3 locks held by syz-executor/32540: #0: ffff8880703ccd88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510 #1: ffff8880703cc078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063 #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline] #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593 3 locks held by syz-executor/32543: #0: ffff8880493fcd88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510 #1: ffff8880493fc078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063 #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline] #2: ffffffff8f9aa228 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593 1 lock held by syz-executor/32553: #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632 1 lock held by syz-executor/32559: #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632 1 lock held by syz-executor/32560: #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632 1 lock held by syz-executor/32561: #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632 1 lock held by syz-executor/32565: #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f748128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6632 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00223-gc6653f49e4fd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 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+0xf86/0x1240 kernel/hung_task.c:379 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 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: NMI backtrace for cpu 1 CPU: 1 PID: 99 Comm: kworker/1:1H Not tainted 6.10.0-rc6-syzkaller-00223-gc6653f49e4fd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: kblockd blk_mq_requeue_work RIP: 0010:write_comp_data+0x7d/0x90 kernel/kcov.c:262 Code: 00 00 4a 8d 34 dd 28 00 00 00 48 39 f2 72 1b 48 83 c7 01 48 89 38 4c 89 44 30 e0 4c 89 4c 30 e8 4c 89 54 30 f0 4a 89 4c d8 20 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 RSP: 0018:ffffc90000a17a78 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffffc90000a17b48 RCX: ffffffff813cd516 RDX: ffff888019fb3c00 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffffc90000a17ec8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000002 R12: ffffc90000a17b50 R13: ffffc90000a17b58 R14: ffffc90000a11000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020137000 CR3: 000000000d97a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_stack arch/x86/include/asm/stacktrace.h:60 [inline] stack_access_ok+0x96/0x270 arch/x86/kernel/unwind_orc.c:393 deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline] unwind_next_frame+0xd9b/0x23a0 arch/x86/kernel/unwind_orc.c:585 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387 kmalloc_noprof include/linux/slab.h:660 [inline] dummy_urb_enqueue+0x8d/0x8a0 drivers/usb/gadget/udc/dummy_hcd.c:1271 usb_hcd_submit_urb+0x2d1/0x2090 drivers/usb/core/hcd.c:1533 usb_submit_urb+0x87c/0x1730 drivers/usb/core/urb.c:581 ath9k_hif_usb_reg_in_cb+0x494/0x690 drivers/net/wireless/ath/ath9k/hif_usb.c:792 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:arch_stack_walk+0xc1/0x170 arch/x86/kernel/stacktrace.c:27 Code: ff e8 93 ba 59 00 48 89 da 4c 89 fe 4c 89 e7 48 8b 8d 68 ff ff ff e8 9e d0 08 00 eb 4c e8 77 ba 59 00 4c 89 e7 e8 0f a6 08 00 <31> ff 48 89 c3 48 89 c6 e8 92 b5 59 00 48 85 db 74 40 e8 58 ba 59 RSP: 0018:ffffc90000a18670 EFLAGS: 00000246 RAX: ffffffff8151fd8b RBX: 0000000000000002 RCX: ffffffff813cd0b7 RDX: ffff888019fb3c00 RSI: ffffffff813cd0e0 RDI: 0000000000000005 RBP: ffffc90000a18708 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffc90000a18678 R13: ffffffff81798340 R14: ffffc90000a18738 R15: ffff888019fb3c00 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4002 [inline] kmem_cache_alloc_node_noprof+0x153/0x310 mm/slub.c:4045 kmalloc_reserve+0x18b/0x2c0 net/core/skbuff.c:575 __alloc_skb+0x164/0x380 net/core/skbuff.c:666 __netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:730 netdev_alloc_skb include/linux/skbuff.h:3319 [inline] dev_alloc_skb include/linux/skbuff.h:3332 [inline] __ieee80211_beacon_get+0xc1f/0x16b0 net/mac80211/tx.c:5471 ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5593 ieee80211_beacon_get include/net/mac80211.h:5562 [inline] mac80211_hwsim_beacon_tx+0x4ea/0xa00 drivers/net/wireless/virtual/mac80211_hwsim.c:2302 __iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:808 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2336 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1770 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202 Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 6a c8 80 f6 48 89 df e8 52 45 81 f6 e8 1d 27 aa f6 fb bf 01 00 00 00 72 87 72 f6 65 8b 05 43 d4 18 75 85 c0 74 06 5b c3 cc cc cc cc RSP: 0018:ffffc90002547cb8 EFLAGS: 00000206 RAX: 000000000006ccc9 RBX: ffff8880b933df20 RCX: 1ffffffff1fc7e91 RDX: 0000000000000000 RSI: ffffffff8b2caf00 RDI: 0000000000000001 RBP: ffff8880209b3b08 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8fe43717 R11: 0000000000000001 R12: ffff888019fb3c00 R13: 0000000000000000 R14: 0000000000000001 R15: ffff888019ebbc00 process_one_work+0x813/0x1b40 kernel/workqueue.c:3217 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x6c8/0xf30 kernel/workqueue.c:3409 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244