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2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf

 kernel/arch/arm64/kvm/psci.c
.. .. @@ -499,6 +499,8 @@
499 499  	u64 val;
500 500  	int wa_level;
501 501  
502 +	if (KVM_REG_SIZE(reg->id) != sizeof(val))
503 +		return -ENOENT;
502 504  	if (copy_from_user(&val, uaddr, KVM_REG_SIZE(reg->id)))
503 505  		return -EFAULT;
504 506

..	..	@@ -499,6 +499,8 @@
499	499	u64 val;
500	500	int wa_level;
501	501
	502	+ if (KVM_REG_SIZE(reg->id) != sizeof(val))
	503	+ return -ENOENT;
502	504	if (copy_from_user(&val, uaddr, KVM_REG_SIZE(reg->id)))
503	505	return -EFAULT;
504	506