watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [kworker/0:2:743] Modules linked in: irq event stamp: 3460008 hardirqs last enabled at (3460007): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (3460007): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (3460008): [] sysvec_apic_timer_interrupt+0xe/0xb0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (3459650): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (3459650): [] __do_softirq+0x5bf/0x905 kernel/softirq.c:583 softirqs last disabled at (3459645): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (3459645): [] __irq_exit_rcu kernel/softirq.c:633 [inline] softirqs last disabled at (3459645): [] irq_exit_rcu+0xaa/0x110 kernel/softirq.c:645 CPU: 0 PID: 743 Comm: kworker/0:2 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:preempt_count arch/x86/include/asm/preempt.h:26 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:207 Code: c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 24 f5 b0 7e <65> 8b 05 25 f5 b0 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 RSP: 0018:ffffc90001abead0 EFLAGS: 00000246 RAX: 0000000000040000 RBX: ffffc90001abf3c0 RCX: ffffc9000addb000 RDX: ffff88810afa8000 RSI: ffffffff81153202 RDI: ffffc90001abf3c0 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000005 R12: ffffc90001abf3c0 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30827000 CR3: 000000000829e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __read_once_word_nocheck+0x9/0x20 include/asm-generic/rwonce.h:67 deref_stack_reg arch/x86/kernel/unwind_orc.c:406 [inline] unwind_next_frame+0x1bba/0x23a0 arch/x86/kernel/unwind_orc.c:648 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 0 to CPUs 1: cdc_wdm 1-1:1.0: Stall on int endpoint NMI backtrace for cpu 1 CPU: 1 PID: 2400 Comm: udevd 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:format_decode+0x2/0xba0 lib/vsprintf.c:2532 Code: 15 fc c6 05 7f 67 15 03 01 31 c0 c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 <41> 56 41 55 41 54 49 89 f4 55 48 bd 00 00 00 00 00 fc ff df 53 48 RSP: 0018:ffffc900001a81d0 EFLAGS: 00000046 RAX: 0000000000010002 RBX: ffffffff86c8a4a5 RCX: ffffffff86871f93 RDX: ffff888116a09d00 RSI: ffffc900001a8230 RDI: ffffffff86c8a4a5 RBP: ffffc900001a8496 R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000002e R11: 00000000000bbfc0 R12: ffffffff86c8a4a5 R13: 000000000000002e R14: ffffc900001a82c8 R15: 0000000000000009 FS: 00007f441cc88c80(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb83dd6023c CR3: 0000000116ae0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x13d/0x1880 lib/vsprintf.c:2776 sprintf+0xcd/0x110 lib/vsprintf.c:3028 print_time kernel/printk/printk.c:1330 [inline] info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1356 record_print_text+0x141/0x400 kernel/printk/printk.c:1405 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2840 console_emit_next_record kernel/printk/printk.c:2880 [inline] console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:2979 console_unlock+0xae/0x290 kernel/printk/printk.c:3048 vprintk_emit kernel/printk/printk.c:2348 [inline] vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303 dev_vprintk_emit drivers/base/core.c:4950 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4961 __dev_printk+0xf5/0x270 drivers/base/core.c:4973 _dev_err+0xe5/0x120 drivers/base/core.c:5016 wdm_int_callback+0x3eb/0xaa0 drivers/usb/class/cdc-wdm.c:266 __usb_hcd_giveback_urb+0x364/0x5c0 drivers/usb/core/hcd.c:1648 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1732 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1756 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818 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+0x8b/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_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 26 3c a1 fa 48 89 df e8 7e b8 a1 fa f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 55 2b 96 fa 65 8b 05 86 db 73 79 85 c0 74 16 5b RSP: 0018:ffffc900015ef628 EFLAGS: 00000246 RAX: 0000000000000006 RBX: ffffffff8d3e0e78 RCX: 1ffffffff19515fe RDX: 0000000000000000 RSI: ffffffff86c7cf20 RDI: ffffffff86e75520 RBP: 0000000000000282 R08: 0000000000000001 R09: fffffbfff194f3a9 R10: ffffffff8ca79d4f R11: 0000000000000002 R12: ffffffff8d3e0e70 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88811aaa0000 __debug_check_no_obj_freed lib/debugobjects.c:998 [inline] debug_check_no_obj_freed+0x328/0x600 lib/debugobjects.c:1019 free_pages_prepare mm/page_alloc.c:1147 [inline] free_unref_page_prepare+0x212/0xae0 mm/page_alloc.c:2347 free_unref_page+0x33/0x2d0 mm/page_alloc.c:2487 __put_partials+0x14c/0x170 mm/slub.c:2906 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x4e/0x70 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3798 [inline] slab_alloc_node mm/slub.c:3845 [inline] __do_kmalloc_node mm/slub.c:3965 [inline] __kmalloc+0x1b8/0x400 mm/slub.c:3979 kmalloc include/linux/slab.h:632 [inline] kzalloc include/linux/slab.h:749 [inline] tomoyo_encode2+0x100/0x3e0 security/tomoyo/realpath.c:45 tomoyo_encode+0x29/0x50 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x19d/0x720 security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x273/0x450 security/tomoyo/file.c:822 security_inode_getattr+0xf4/0x160 security/security.c:2269 vfs_getattr+0x36/0xb0 fs/stat.c:173 vfs_statx+0x171/0x550 fs/stat.c:248 vfs_fstatat+0xb3/0x150 fs/stat.c:304 __do_sys_newfstatat+0x98/0x120 fs/stat.c:468 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: 0033:0x7f441cdb35f4 Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8 RSP: 002b:00007fff5791c008 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 000055656d59dee0 RCX: 00007f441cdb35f4 RDX: 00007fff5791c018 RSI: 000055656903c302 RDI: 00000000ffffff9c RBP: 000055656d586910 R08: 00000000ffffffff R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00005565690505e8 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000