===================================================== 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:1629 [inline] sched_core_balance+0x87/0x2010 kernel/sched/core.c:6325 do_balance_callbacks kernel/sched/core.c:4926 [inline] __balance_callbacks kernel/sched/core.c:4982 [inline] finish_lock_switch kernel/sched/core.c:5031 [inline] finish_task_switch+0x3e4/0x8b0 kernel/sched/core.c:5150 context_switch kernel/sched/core.c:5298 [inline] __schedule+0x273e/0x8650 kernel/sched/core.c:6907 schedule_idle+0x5a/0x90 kernel/sched/core.c:7030 do_idle+0x748/0x760 kernel/sched/idle.c:360 cpu_startup_entry+0x5f/0x80 kernel/sched/idle.c:430 start_secondary+0xcc/0xd0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x147 Local variable counter created at: try_charge_memcg+0x4b/0x1c20 mm/memcontrol.c:2361 try_charge mm/memcontrol.c:2556 [inline] charge_memcg mm/memcontrol.c:4745 [inline] __mem_cgroup_charge+0x114/0x5c0 mm/memcontrol.c:4762 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 =====================================================