=====================================================
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_irq_enable arch/x86/include/asm/irqflags.h:42 [inline]
 arch_local_irq_enable arch/x86/include/asm/irqflags.h:119 [inline]
 raw_spin_rq_unlock_irq kernel/sched/sched.h:1632 [inline]
 finish_lock_switch kernel/sched/core.c:5035 [inline]
 finish_task_switch+0x11b/0x8b0 kernel/sched/core.c:5153
 context_switch kernel/sched/core.c:5301 [inline]
 __schedule+0x2607/0x8640 kernel/sched/core.c:6911
 __schedule_loop kernel/sched/core.c:6993 [inline]
 schedule+0x17c/0x3c0 kernel/sched/core.c:7008
 do_nanosleep+0x12c/0x7d0 kernel/time/hrtimer.c:2124
 hrtimer_nanosleep+0x22e/0x480 kernel/time/hrtimer.c:2171
 common_nsleep+0x118/0x160 kernel/time/posix-timers.c:1345
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1391 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1368 [inline]
 __x64_sys_clock_nanosleep+0x63d/0x760 kernel/time/posix-timers.c:1368
 x64_sys_call+0x1838/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:231
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable iter created at:
 tdp_mmu_zap_leafs+0x52/0x6e0 arch/x86/kvm/mmu/tdp_mmu.c:983
 kvm_tdp_mmu_unmap_gfn_range+0x910/0xb50 arch/x86/kvm/mmu/tdp_mmu.c:1362

CPU: 1 UID: 0 PID: 7746 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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