------------[ cut here ]------------ WARNING: CPU: 0 PID: 1742 at kernel/kcov.c:684 kcov_remote_start.cold+0xc/0x26 kernel/kcov.c:684 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 1742 Comm: syz-executor.3 Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x2a3/0x6da kernel/panic.c:219 __warn.cold+0x20/0x4a kernel/panic.c:576 report_bug+0x262/0x2a0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:kcov_remote_start.cold+0xc/0x26 kernel/kcov.c:684 Code: b0 f8 ff ff 48 c7 c7 d8 dd a4 86 e8 54 93 ea ff 0f 0b 5b 4c 89 e7 5d 41 5c e9 9d e7 2f 04 48 c7 c7 d8 dd a4 86 e8 3a 93 ea ff <0f> 0b e9 93 fd ff ff 48 c7 c7 d8 dd a4 86 e8 27 93 ea ff 0f 0b e9 RSP: 0018:ffff8881db209ae8 EFLAGS: 00010082 RAX: 0000000000000024 RBX: ffff8881d5674400 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b64134f RBP: ffff8881d5674400 R08: 0000000000000024 R09: ffffed103b645d58 R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffff8881d1e4a848 R13: ffff8881d562a138 R14: dffffc0000000000 R15: ffff8881ca2ae900 dummy_timer+0x125f/0x301a drivers/usb/gadget/udc/dummy_hcd.c:1965 call_timer_fn+0x179/0x650 kernel/time/timer.c:1322 expire_timers kernel/time/timer.c:1366 [inline] __run_timers kernel/time/timer.c:1685 [inline] __run_timers kernel/time/timer.c:1653 [inline] run_timer_softirq+0x5cc/0x14b0 kernel/time/timer.c:1698 __do_softirq+0x221/0x912 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x178/0x1a0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:537 [inline] smp_apic_timer_interrupt+0x12f/0x500 arch/x86/kernel/apic/apic.c:1133 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:_raw_spin_unlock_irq+0x2c/0x30 kernel/locking/spinlock.c:200 Code: 8b 54 24 08 be 01 00 00 00 48 89 fd 48 8d 7f 18 e8 c9 a1 b7 fb 48 89 ef e8 71 82 b8 fb e8 4c 33 d5 fb fb 65 ff 0d bc 1d 94 7a <5d> c3 66 90 55 48 89 fd 48 83 c7 18 53 48 8b 54 24 10 48 89 f3 be RSP: 0018:ffff8881b2a17b48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: ffff8881d42db000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881d42db844 RBP: ffff8881db232dc0 R08: ffff8881d42db000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881db232dc0 R13: ffffffff86c2b200 R14: ffff8881d3f12bc0 R15: 0000000000000000 finish_lock_switch kernel/sched/core.c:3004 [inline] finish_task_switch+0x11d/0x5a0 kernel/sched/core.c:3104 context_switch kernel/sched/core.c:3257 [inline] __schedule+0x70b/0x1440 kernel/sched/core.c:3880 schedule+0xca/0x250 kernel/sched/core.c:3947 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x201/0x6b0 kernel/time/hrtimer.c:1679 hrtimer_nanosleep+0x258/0x510 kernel/time/hrtimer.c:1733 __do_sys_nanosleep kernel/time/hrtimer.c:1767 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1754 [inline] __x64_sys_nanosleep+0x19d/0x220 kernel/time/hrtimer.c:1754 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457d20 Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 31 ea 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 24 d3 fb ff c3 48 83 ec 08 e8 ea 46 00 00 RSP: 002b:00007ffdea2db478 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: ffffffffffffffda RBX: 00000000000074f5 RCX: 0000000000457d20 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffdea2db480 RBP: 0000000000000016 R08: 0000000000000001 R09: 00005555558ab940 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001d R13: 00007ffdea2db4d0 R14: 00000000000074dc R15: 00007ffdea2db4e0 Kernel Offset: disabled Rebooting in 86400 seconds..