===================================================== BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x343/0x1710 kernel/smp.c:535 __flush_smp_call_function_queue+0x343/0x1710 kernel/smp.c:535 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:463 __sysvec_call_function_single+0x45/0x310 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 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:95 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline] _raw_spin_unlock_irq+0x25/0x50 kernel/locking/spinlock.c:202 process_one_work kernel/workqueue.c:3244 [inline] process_scheduled_works+0xa89/0x1d60 kernel/workqueue.c:3358 worker_thread+0xede/0x1580 kernel/workqueue.c:3439 kthread+0x53f/0x600 kernel/kthread.c:467 ret_from_fork+0x20f/0x910 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Local variable reuse.i created at: mas_wr_node_store lib/maple_tree.c:3495 [inline] mas_wr_store_entry+0x1191/0x93d0 lib/maple_tree.c:3764 mas_store_prealloc+0x1830/0x1df0 lib/maple_tree.c:5169 CPU: 0 UID: 0 PID: 10300 Comm: kworker/u8:30 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 Workqueue: events_unbound nsim_dev_trap_report_work =====================================================