cdc_wdm 3-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 3-1:1.0: nonzero urb status received: -71 cdc_wdm 3-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 3-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at kernel/kcov.c:870 kcov_remote_start+0x274/0x6e0 kernel/kcov.c:870 Modules linked in: CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:kcov_remote_start+0x274/0x6e0 kernel/kcov.c:870 Code: c0 22 49 89 47 08 e9 87 00 00 00 f6 c4 01 0f 85 06 fe ff ff e9 dc fd ff ff 44 8b 95 54 15 00 00 45 85 d2 0f 84 d5 fe ff ff 90 <0f> 0b 90 e9 b9 00 00 00 65 8b 05 55 72 b0 7e 49 c7 c0 2e e4 04 88 RSP: 0018:ffffc90000007b48 EFLAGS: 00010002 RAX: 0000000080010101 RBX: 000000000002d428 RCX: ffffffff813080be RDX: 0000000000000002 RSI: ffffffff86c7d9a0 RDI: ffffffff86e78600 RBP: ffff8881016a3a00 R08: 0000000000000000 R09: fffffbfff19989a6 R10: 0000000000000001 R11: 0000000000000002 R12: ffff8881f642d428 R13: 0000000000000000 R14: 0100000000000001 R15: ffff8881016a3a00 FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31236000 CR3: 0000000112926000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcov_remote_start_usb include/linux/kcov.h:53 [inline] kcov_remote_start_usb_softirq include/linux/kcov.h:66 [inline] __usb_hcd_giveback_urb+0x331/0x5c0 drivers/usb/core/hcd.c:1647 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:1687 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813 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 76 2c 9c fa 48 89 df e8 5e a9 9c fa f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 95 1f 91 fa 65 8b 05 16 8c 6e 79 85 c0 74 16 5b RSP: 0018:ffffc900000ffa28 EFLAGS: 00000246 RAX: 0000000000000006 RBX: ffffc9000c3af860 RCX: 1ffffffff199cd2a RDX: 0000000000000000 RSI: ffffffff86c7d6a0 RDI: ffffffff86e78600 RBP: 0000000000000246 R08: 0000000000000001 R09: fffffbfff19989a6 R10: ffffffff8ccc4d37 R11: 0000000000000004 R12: 0000000000000000 R13: 00000000ffffffff R14: 0100000000000001 R15: 0000000000000000 __usb_hcd_giveback_urb+0x364/0x5c0 drivers/usb/core/hcd.c:1648 usb_giveback_urb_bh+0x28f/0x570 drivers/usb/core/hcd.c:1682 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] bh_worker+0x5a4/0x8a0 kernel/workqueue.c:3572 workqueue_softirq_action+0x12c/0x190 kernel/workqueue.c:3599 tasklet_action+0x14/0x70 kernel/softirq.c:810 handle_softirqs+0x209/0x8e0 kernel/softirq.c:554 run_ksoftirqd kernel/softirq.c:928 [inline] run_ksoftirqd+0x3a/0x60 kernel/softirq.c:920 smpboot_thread_fn+0x661/0xa10 kernel/smpboot.c:164 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 ---------------- Code disassembly (best guess): 0: f5 cmc 1: 53 push %rbx 2: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 7: 48 89 fb mov %rdi,%rbx a: 48 83 c7 18 add $0x18,%rdi e: e8 76 2c 9c fa call 0xfa9c2c89 13: 48 89 df mov %rbx,%rdi 16: e8 5e a9 9c fa call 0xfa9ca979 1b: f7 c5 00 02 00 00 test $0x200,%ebp 21: 75 23 jne 0x46 23: 9c pushf 24: 58 pop %rax 25: f6 c4 02 test $0x2,%ah 28: 75 37 jne 0x61 * 2a: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction 2f: e8 95 1f 91 fa call 0xfa911fc9 34: 65 8b 05 16 8c 6e 79 mov %gs:0x796e8c16(%rip),%eax # 0x796e8c51 3b: 85 c0 test %eax,%eax 3d: 74 16 je 0x55 3f: 5b pop %rbx