diff --git a/target/linux/generic/hack-5.19/904-debloat_dma_buf.patch b/target/linux/generic/hack-5.19/904-debloat_dma_buf.patch
new file mode 100644
index 000000000..e2803e15a
--- /dev/null
+++ b/target/linux/generic/hack-5.19/904-debloat_dma_buf.patch
@@ -0,0 +1,93 @@
+From e3692cb2fcd5ba1244512a0f43b8118f65f1c375 Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 8 Jul 2017 08:20:43 +0200
+Subject: debloat: dmabuf
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ drivers/base/Kconfig      |  2 +-
+ drivers/dma-buf/Makefile  | 10 +++++++---
+ drivers/dma-buf/dma-buf.c |  4 +++-
+ kernel/sched/core.c       |  1 +
+ 4 files changed, 12 insertions(+), 5 deletions(-)
+
+--- a/drivers/base/Kconfig
++++ b/drivers/base/Kconfig
+@@ -198,7 +198,7 @@ config SOC_BUS
+ source "drivers/base/regmap/Kconfig"
+ 
+ config DMA_SHARED_BUFFER
+-	bool
++	tristate
+ 	default n
+ 	select IRQ_WORK
+ 	help
+--- a/drivers/dma-buf/heaps/Makefile
++++ b/drivers/dma-buf/heaps/Makefile
+@@ -1,3 +1,3 @@
+ # SPDX-License-Identifier: GPL-2.0
+-obj-$(CONFIG_DMABUF_HEAPS_SYSTEM)	+= system_heap.o
+-obj-$(CONFIG_DMABUF_HEAPS_CMA)		+= cma_heap.o
++dma-buf-objs-$(CONFIG_DMABUF_HEAPS_SYSTEM)	+= system_heap.o
++dma-buf-objs-$(CONFIG_DMABUF_HEAPS_CMA)		+= cma_heap.o
+--- a/drivers/dma-buf/Makefile
++++ b/drivers/dma-buf/Makefile
+@@ -1,12 +1,14 @@
+ # SPDX-License-Identifier: GPL-2.0-only
+-obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
++obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
++
++dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
+ 	 dma-resv.o
+-obj-$(CONFIG_DMABUF_HEAPS)	+= dma-heap.o
+-obj-$(CONFIG_DMABUF_HEAPS)	+= heaps/
+-obj-$(CONFIG_SYNC_FILE)		+= sync_file.o
+-obj-$(CONFIG_SW_SYNC)		+= sw_sync.o sync_debug.o
+-obj-$(CONFIG_UDMABUF)		+= udmabuf.o
+-obj-$(CONFIG_DMABUF_SYSFS_STATS) += dma-buf-sysfs-stats.o
++dma-buf-objs-$(CONFIG_DMABUF_HEAPS)	+= dma-heap.o
++obj-$(CONFIG_DMABUF_HEAPS)		+= heaps/
++dma-buf-objs-$(CONFIG_SYNC_FILE)	+= sync_file.o
++dma-buf-objs-$(CONFIG_SW_SYNC)		+= sw_sync.o sync_debug.o
++dma-buf-objs-$(CONFIG_UDMABUF)		+= udmabuf.o
++dma-buf-objs-$(CONFIG_DMABUF_SYSFS_STATS) += udmabuf.o
+ 
+ dmabuf_selftests-y := \
+ 	selftest.o \
+@@ -15,4 +17,6 @@ dmabuf_selftests-y := \
+ 	st-dma-fence-unwrap.o \
+ 	st-dma-resv.o
+ 
+-obj-$(CONFIG_DMABUF_SELFTESTS)	+= dmabuf_selftests.o
++dma-buf-objs-$(CONFIG_DMABUF_SELFTESTS)	+= dmabuf_selftests.o
++
++dma-shared-buffer-objs :=  $(dma-buf-objs-y)
+--- a/drivers/dma-buf/dma-buf.c
++++ b/drivers/dma-buf/dma-buf.c
+@@ -1459,4 +1459,5 @@ static void __exit dma_buf_deinit(void)
+ 	kern_unmount(dma_buf_mnt);
+ 	dma_buf_uninit_sysfs_statistics();
+ }
+-__exitcall(dma_buf_deinit);
++module_exit(dma_buf_deinit);
++MODULE_LICENSE("GPL");
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -4287,6 +4287,7 @@ int wake_up_state(struct task_struct *p,
+ {
+ 	return try_to_wake_up(p, state, 0);
+ }
++EXPORT_SYMBOL_GPL(wake_up_state);
+ 
+ /*
+  * Perform scheduler related setup for a newly forked process p.
+--- a/fs/d_path.c
++++ b/fs/d_path.c
+@@ -314,6 +314,7 @@ char *dynamic_dname(struct dentry *dentr
+ 	buffer += buflen - sz;
+ 	return memcpy(buffer, temp, sz);
+ }
++EXPORT_SYMBOL_GPL(dynamic_dname);
+ 
+ char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
+ {
diff --git a/target/linux/x86/Makefile b/target/linux/x86/Makefile
index 02cc36a87..1ed83ca13 100644
--- a/target/linux/x86/Makefile
+++ b/target/linux/x86/Makefile
@@ -11,7 +11,7 @@ FEATURES:=squashfs vdi vmdk vhdx pcmcia fpu boot-part rootfs-part
 SUBTARGETS:=64 generic legacy geode 
 
 KERNEL_PATCHVER:=5.15
-KERNEL_TESTING_PATCHVER:=5.18
+KERNEL_TESTING_PATCHVER:=5.19
 
 KERNELNAME:=bzImage