watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [kworker/1:2:627] Modules linked in: irq event stamp: 5002198 hardirqs last enabled at (5002197): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (5002197): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (5002198): [] sysvec_apic_timer_interrupt+0xe/0xb0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (5002136): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (5002136): [] __do_softirq+0x5bf/0x905 kernel/softirq.c:583 softirqs last disabled at (5002117): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (5002117): [] __irq_exit_rcu kernel/softirq.c:633 [inline] softirqs last disabled at (5002117): [] irq_exit_rcu+0xaa/0x110 kernel/softirq.c:645 CPU: 1 PID: 627 Comm: kworker/1:2 Not tainted 6.9.0-rc5-syzkaller-00104-ga160e1202ca3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:220 [inline] RIP: 0010:unwind_next_frame+0x2f6/0x23a0 arch/x86/kernel/unwind_orc.c:494 Code: ad ec 79 5b 8a 4b 8d 14 76 4c 8d ac 12 74 5f eb 89 83 c0 01 49 81 fd ec 79 5b 8a 89 44 24 34 0f 83 08 0a 00 00 e8 4a b7 3d 00 <8b> 54 24 34 48 8d 14 52 48 8d 94 12 74 5f eb 89 48 81 fa ec 79 5b RSP: 0018:ffffc90001b0eae8 EFLAGS: 00000246 RAX: 0000000000040000 RBX: ffffc90001b0eb68 RCX: ffffc9000a539000 RDX: 0000000000040000 RSI: ffffffff81151946 RDI: ffffffff8a6416c8 RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000022736 R10: 000000000005c000 R11: 0000000000000005 R12: ffffffff83273637 R13: ffffffff8a1a001a R14: 000000000007c571 R15: ffffc90001b0eb9d FS: 0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf8c6900d0 CR3: 000000000829e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0x8f/0xa0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:3966 [inline] __kmalloc+0x1f4/0x400 mm/slub.c:3979 kmalloc include/linux/slab.h:632 [inline] usb_alloc_urb+0x69/0xa0 drivers/usb/core/urb.c:75 ath6kl_usb_post_recv_transfers.constprop.0+0x84/0x400 drivers/net/wireless/ath/ath6kl/usb.c:432 ath6kl_usb_start_recv_pipes drivers/net/wireless/ath/ath6kl/usb.c:498 [inline] hif_start drivers/net/wireless/ath/ath6kl/usb.c:703 [inline] ath6kl_usb_power_on+0x8e/0x160 drivers/net/wireless/ath/ath6kl/usb.c:1062 ath6kl_hif_power_on drivers/net/wireless/ath/ath6kl/hif-ops.h:136 [inline] ath6kl_core_init+0x17c/0x11a0 drivers/net/wireless/ath/ath6kl/core.c:97 ath6kl_usb_probe+0xcd2/0x1450 drivers/net/wireless/ath/ath6kl/usb.c:1168 usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:578 [inline] really_probe+0x23e/0xa90 drivers/base/dd.c:656 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:798 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:828 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:956 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1028 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532 device_add+0x1188/0x1ab0 drivers/base/core.c:3720 usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:578 [inline] really_probe+0x23e/0xa90 drivers/base/dd.c:656 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:798 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:828 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:956 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1028 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532 device_add+0x1188/0x1ab0 drivers/base/core.c:3720 usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2652 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2e66/0x4f50 drivers/usb/core/hub.c:5903 process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416 kthread+0x2c1/0x3a0 kernel/kthread.c:388 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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5835 Comm: modprobe Not tainted 6.9.0-rc5-syzkaller-00104-ga160e1202ca3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__unwind_start+0x594/0x880 arch/x86/kernel/unwind_orc.c:758 Code: 72 31 e8 1f 91 3d 00 48 8b 44 24 08 48 c1 e8 03 42 80 3c 20 00 0f 85 9a 01 00 00 4c 8b 7b 38 48 89 ee 4c 89 ff e8 4c 8b 3d 00 <4c> 39 fd 0f 82 91 fd ff ff e8 ee 90 3d 00 48 89 df e8 a6 d6 ff ff RSP: 0018:ffffc9000b82f710 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffffc9000b82f770 RCX: ffffffff81153f94 RDX: ffff888136533a00 RSI: ffffc9000b82f810 RDI: 0000000000000006 RBP: ffffc9000b82f800 R08: 0000000000000006 R09: ffffc9000b82f810 R10: ffffc9000b82f800 R11: 0000000000000001 R12: dffffc0000000000 R13: fffff52001705ef0 R14: fffff52001705eef R15: ffffc9000b82f810 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa121605440 CR3: 0000000135170000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xb2/0x170 arch/x86/kernel/stacktrace.c:24 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 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:240 [inline] __kasan_slab_free+0xfe/0x190 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kmem_cache_free+0x10f/0x360 mm/slub.c:4344 anon_vma_chain_free mm/rmap.c:147 [inline] unlink_anon_vmas+0x458/0x820 mm/rmap.c:448 free_pgtables+0xbc/0x860 mm/memory.c:384 exit_mmap+0x3d2/0xb90 mm/mmap.c:3278 __mmput kernel/fork.c:1346 [inline] mmput+0xdb/0x420 kernel/fork.c:1368 exit_mm kernel/exit.c:569 [inline] do_exit+0x999/0x2b80 kernel/exit.c:865 do_group_exit+0xd3/0x2a0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [inline] __se_sys_exit_group kernel/exit.c:1036 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1036 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa1216c3a90 Code: Unable to access opcode bytes at 0x7fa1216c3a66. RSP: 002b:00007fff84335208 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fa1217b4860 RCX: 00007fa1216c3a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007fa1217b4860 R08: 00007fff84335080 R09: 00007fff84335160 R10: 00007fff843350c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fa1217b8658 R15: 0000000000000001