diff --git a/fixes_for_kernel_6.4.patch b/fixes_for_kernel_6.4.patch
new file mode 100644
index 0000000..507fdf5
--- /dev/null
+++ b/fixes_for_kernel_6.4.patch
@@ -0,0 +1,47 @@
+Index: VirtualBox-7.0.8/src/VBox/Additions/linux/sharedfolders/regops.c
+===================================================================
+--- VirtualBox-7.0.8.orig/src/VBox/Additions/linux/sharedfolders/regops.c
++++ VirtualBox-7.0.8/src/VBox/Additions/linux/sharedfolders/regops.c
+@@ -179,7 +179,11 @@ static size_t vbsf_iov_iter_count(struct
+ {
+     size_t              cbRet = 0;
+     size_t              cLeft = iter->nr_segs;
++#if RTLNX_VER_MIN(6, 4, 0)
++    struct iovec const *iov   = iter_iov(iter);
++#else
+     struct iovec const *iov   = iter->iov;
++#endif
+     while (cLeft-- > 0) {
+         cbRet += iov->iov_len;
+         iov++;
+@@ -295,8 +299,12 @@ void vbsf_iov_iter_revert(struct vbsf_io
+     }
+ 
+     while (cbRewind > 0) {
+-        struct iovec const *pIov  = --iter->iov;
+-        size_t const        cbSeg = pIov->iov_len;
++#if RTLNX_VER_MIN(6, 4, 0)
++    	struct iovec const *pIov  = --iter_iov(iter);
++#else
++    	struct iovec const *pIov  = --iter->iov;
++#endif
++   	size_t const        cbSeg = pIov->iov_len;
+         iter->nr_segs++;
+ 
+         Assert((uintptr_t)pIov >= (uintptr_t)iter->iov_org);
+@@ -2399,9 +2407,13 @@ static size_t vbsf_iter_max_span_of_page
+ # if RTLNX_VER_MIN(3,16,0)
+     if (iter_is_iovec(iter) || (VBSF_GET_ITER_TYPE(iter) & ITER_KVEC)) {
+ # endif
++#if RTLNX_VER_MIN(6, 4, 0)
++        const struct iovec *pCurIov    = iter_iov(iter);
++#else
+         const struct iovec *pCurIov    = iter->iov;
+-        size_t              cLeft      = iter->nr_segs;
+-        size_t              cPagesSpan = 0;
++#endif
++	size_t              cLeft      = iter->nr_segs;
++	size_t              cPagesSpan = 0;
+ 
+         /* iovect and kvec are identical, except for the __user tagging of iov_base. */
+         AssertCompileMembersSameSizeAndOffset(struct iovec, iov_base, struct kvec, iov_base);
diff --git a/virtualbox.changes b/virtualbox.changes
index 8f10e8f..fb36dd0 100644
--- a/virtualbox.changes
+++ b/virtualbox.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jun 27 19:08:03 UTC 2023 - Larry Finger <Larry.Finger@gmail.com>
+
+- Fix builds on kernel 6.4 (boo#1212761)
+  File "fixes_for_kernel_6.4.patch" added. 
+
 -------------------------------------------------------------------
 Wed Jun 14 02:18:18 UTC 2023 - Larry Finger <Larry.Finger@gmail.com>
 
diff --git a/virtualbox.spec b/virtualbox.spec
index 7933e23..3b3adb1 100644
--- a/virtualbox.spec
+++ b/virtualbox.spec
@@ -165,6 +165,8 @@ Patch37:        fix_7.0.6_locking_problems.patch
 # Support python 3.11
 Patch38:        python311.patch
 Patch39:        fix_sdl_build.patch
+# Fix build on kernel 6.4
+Patch40:        fixes_for_kernel_6.4.patch
 #
 # Common BuildRequires for both virtualbox and virtualbox-kmp
 BuildRequires:  %{kernel_module_package_buildreqs}
@@ -486,6 +488,7 @@ This package contains the kernel-modules that VirtualBox uses to create or run v
 %patch37 -p1
 %patch38 -p1
 %patch39 -p1
+%patch40 -p1
 
 ### Documents for virtualbox main package ###
 %if %{main_package}