=====================================================
BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535
 __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:463
 __sysvec_call_function_single+0x4b/0x3e0 arch/x86/kernel/smp.c:271
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline]
 sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:266
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
 pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:62
 arch_safe_halt arch/x86/kernel/process.c:766 [inline]
 default_idle+0xd/0x20 arch/x86/kernel/process.c:767
 arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:804
 default_idle_call+0x3f/0x70 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:199 [inline]
 do_idle+0x6ad/0xa10 kernel/sched/idle.c:352
 cpu_startup_entry+0x5f/0x80 kernel/sched/idle.c:451
 start_secondary+0xcc/0xd0 arch/x86/kernel/smpboot.c:312
 common_startup_64+0x13e/0x147

Local variable gfn_range.i created at:
 kvm_handle_hva_range virt/kvm/kvm_main.c:568 [inline]
 kvm_mmu_notifier_invalidate_range_start+0x16f/0x17b0 virt/kvm/kvm_main.c:770
 mn_hlist_invalidate_range_start mm/mmu_notifier.c:478 [inline]
 __mmu_notifier_invalidate_range_start+0x5e8/0xec0 mm/mmu_notifier.c:533

CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
=====================================================