diff -Nru mstflint-4.21.0/debian/changelog mstflint-4.21.0/debian/changelog
--- mstflint-4.21.0/debian/changelog	2022-11-01 21:34:43.000000000 +0000
+++ mstflint-4.21.0/debian/changelog	2023-11-09 13:16:05.000000000 +0000
@@ -1,3 +1,10 @@
+mstflint (4.21.0-7ubuntu1) jammy; urgency=medium
+
+  * Support Linux 6.5 ABI (LP: #2043098):
+    - debian/patches/support-linux-6.5-jammy.patch
+
+ -- Andrea Righi <andrea.righi@canonical.com>  Thu, 09 Nov 2023 13:16:05 +0000
+
 mstflint (4.21.0-7) jammy; urgency=low
 
   * Getting build to work in kernel build space.
diff -Nru mstflint-4.21.0/debian/control mstflint-4.21.0/debian/control
--- mstflint-4.21.0/debian/control	2022-10-02 00:00:00.000000000 +0000
+++ mstflint-4.21.0/debian/control	2023-11-09 13:16:05.000000000 +0000
@@ -1,7 +1,8 @@
 Source: mstflint
 Section: net
 Priority: optional
-Maintainer: NVIDIA MFT Apps team <akiselman-org@nvidia.com>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: NVIDIA MFT Apps team <akiselman-org@nvidia.com>
 Build-Depends: debhelper (>= 9.0), autotools-dev, bzip2, dkms, dpkg-dev, automake, autoconf, make, g++, zlib1g-dev, libibmad-dev, libssl-dev, libjsoncpp-dev, pkg-config, libtool, debhelper, git
 Standards-Version: 4.6.1
 Homepage: https://www.nvidia.com/networking/
diff -Nru mstflint-4.21.0/debian/patches/series mstflint-4.21.0/debian/patches/series
--- mstflint-4.21.0/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ mstflint-4.21.0/debian/patches/series	2023-11-09 13:15:59.000000000 +0000
@@ -0,0 +1 @@
+support-linux-6.5-jammy.patch
diff -Nru mstflint-4.21.0/debian/patches/support-linux-6.5-jammy.patch mstflint-4.21.0/debian/patches/support-linux-6.5-jammy.patch
--- mstflint-4.21.0/debian/patches/support-linux-6.5-jammy.patch	1970-01-01 00:00:00.000000000 +0000
+++ mstflint-4.21.0/debian/patches/support-linux-6.5-jammy.patch	2023-11-09 13:15:59.000000000 +0000
@@ -0,0 +1,28 @@
+From: Andrea Righi <andrea.righi@canonical.com>
+Subject: support linux 6.5 ABI
+
+diff -urpN mstflint-4.21.0.orig/kernel/mst_main.c mstflint-4.21.0/kernel/mst_main.c
+--- mstflint-4.21.0.orig/kernel/mst_main.c	2022-08-19 00:34:40.000000000 +0000
++++ mstflint-4.21.0/kernel/mst_main.c	2023-11-09 13:13:50.219689470 +0000
+@@ -1601,7 +1601,9 @@ static const struct file_operations mst_
+   .unlocked_ioctl = unlocked_ioctl,
+   .open = mst_open,
+   .release = mst_release,
++#if KERNEL_VERSION(6, 5, 0) > LINUX_VERSION_CODE
+   .owner = THIS_MODULE,
++#endif
+ };
+ 
+ static struct mst_dev_data* mst_device_create(enum dev_type type, struct pci_dev* pdev)
+@@ -1651,7 +1653,11 @@ static struct mst_dev_data* mst_device_c
+ 
+     if (alloc_chrdev_region(&dev->my_dev, 0, 1, dev->name))
+         mst_err("failed to allocate chrdev_region\n");
++#if KERNEL_VERSION(6, 5, 0) > LINUX_VERSION_CODE
+     dev->cl = class_create(THIS_MODULE, dev->name);
++#else
++    dev->cl = class_create(dev->name);
++#endif
+     if (dev->cl == NULL)
+     {
+         pr_alert("Class creation failed\n");
diff -Nru mstflint-4.21.0/kernel/mst_main.c mstflint-4.21.0/kernel/mst_main.c
--- mstflint-4.21.0/kernel/mst_main.c	2022-08-19 00:34:40.000000000 +0000
+++ mstflint-4.21.0/kernel/mst_main.c	2023-11-09 13:16:02.000000000 +0000
@@ -1601,7 +1601,9 @@
   .unlocked_ioctl = unlocked_ioctl,
   .open = mst_open,
   .release = mst_release,
+#if KERNEL_VERSION(6, 5, 0) > LINUX_VERSION_CODE
   .owner = THIS_MODULE,
+#endif
 };
 
 static struct mst_dev_data* mst_device_create(enum dev_type type, struct pci_dev* pdev)
@@ -1651,7 +1653,11 @@
 
     if (alloc_chrdev_region(&dev->my_dev, 0, 1, dev->name))
         mst_err("failed to allocate chrdev_region\n");
+#if KERNEL_VERSION(6, 5, 0) > LINUX_VERSION_CODE
     dev->cl = class_create(THIS_MODULE, dev->name);
+#else
+    dev->cl = class_create(dev->name);
+#endif
     if (dev->cl == NULL)
     {
         pr_alert("Class creation failed\n");