D36350.diff
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	diff --git a/sys/compat/linuxkpi/common/include/linux/string.h b/sys/compat/linuxkpi/common/include/linux/string.h
	--- a/sys/compat/linuxkpi/common/include/linux/string.h
	+++ b/sys/compat/linuxkpi/common/include/linux/string.h
	@@ -98,6 +98,15 @@
	return (dst);
	}

	+static inline char *
	+strndup_user(const char __user *ustr, long n)
	+{
	+ if (n < 1)
	+ return (ERR_PTR(-EINVAL));
	+
	+ return (memdup_user_nul(ustr, n - 1));
	+}
	+
	static inline char *
	kstrdup(const char *string, gfp_t gfp)
	{