=====================================================
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
 crng_make_state+0x16f/0x400 drivers/char/random.c:387
 _get_random_bytes+0x97/0x250 drivers/char/random.c:399
 get_random_bytes+0x26/0x30 drivers/char/random.c:430
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:847 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:876 [inline]
 nsim_dev_trap_report_work+0xa65/0x1430 drivers/net/netdevsim/dev.c:922
 process_one_work kernel/workqueue.c:3276 [inline]
 process_scheduled_works+0xb82/0x1e80 kernel/workqueue.c:3359
 worker_thread+0xee4/0x1590 kernel/workqueue.c:3440
 kthread+0x53f/0x600 kernel/kthread.c:436
 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 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: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: events_unbound nsim_dev_trap_report_work
=====================================================