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BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:477
 __sysvec_call_function_single+0x48/0x350 arch/x86/kernel/smp.c:272
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:267 [inline]
 sysvec_call_function_single+0x3d/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704

Local variable rf.i created at:
 ttwu_runnable kernel/sched/core.c:3768 [inline]
 try_to_wake_up+0x113/0x20f0 kernel/sched/core.c:4220
 swake_up_locked kernel/sched/swait.c:30 [inline]
 swake_up_one+0xd0/0x420 kernel/sched/swait.c:53

CPU: 0 UID: 0 PID: 8913 Comm: modprobe Tainted: G             L      syzkaller #0 PREEMPT(lazy) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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