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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+0x7c/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 kmsan_get_metadata+0x120/0x160 mm/kmsan/shadow.c:148
 kmsan_get_shadow_origin_ptr+0x4a/0xb0 mm/kmsan/shadow.c:102
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:38 [inline]
 __msan_metadata_ptr_for_load_1+0x24/0x40 mm/kmsan/instrumentation.c:91
 skb_data_unref include/linux/skbuff.h:1303 [inline]
 skb_release_data+0x9e/0x1140 net/core/skbuff.c:1096
 skb_release_all net/core/skbuff.c:1189 [inline]
 __kfree_skb+0x6b/0x260 net/core/skbuff.c:1203
 consume_skb+0x86/0x260 net/core/skbuff.c:1436
 uevent_net_broadcast_untagged lib/kobject_uevent.c:338 [inline]
 kobject_uevent_net_broadcast+0x9fc/0xd80 lib/kobject_uevent.c:410
 kobject_uevent_env+0xd89/0x12a0 lib/kobject_uevent.c:611
 kobject_uevent+0x36/0x50 lib/kobject_uevent.c:659
 driver_register+0x60d/0x6a0 drivers/base/driver.c:257
 usb_gadget_register_driver_owner+0xf9/0x420 drivers/usb/gadget/udc/core.c:1720
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:596 [inline]
 raw_ioctl+0x1581/0x5e20 drivers/usb/gadget/legacy/raw_gadget.c:1307
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0x23c/0x400 fs/ioctl.c:583
 __x64_sys_ioctl+0x97/0xe0 fs/ioctl.c:583
 x64_sys_call+0x1975/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:17
 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: 6140 Comm: syz.4.70 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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