diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0011-Platform-corstone1000-Increase-buffers-for-EFI-vars.patch b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0011-Platform-corstone1000-Increase-buffers-for-EFI-vars.patch
new file mode 100644
index 00000000..abf70389
--- /dev/null
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0011-Platform-corstone1000-Increase-buffers-for-EFI-vars.patch
@@ -0,0 +1,45 @@
+From d7725e629c9ba93523589cc9d8af3186db19d4e8 Mon Sep 17 00:00:00 2001
+From: Bence Balogh <bence.balogh@arm.com>
+Date: Wed, 15 May 2024 22:37:51 +0200
+Subject: [PATCH] Platform: corstone1000: Increase buffers for EFI vars
+
+The UEFI variables are stored in the Protected Storage. The size of
+the variables metadata have been increased so the related buffer sizes
+have to be increased.
+
+Signed-off-by: Bence Balogh <bence.balogh@arm.com>
+Upstream-Status: Pending
+---
+ .../ext/target/arm/corstone1000/config_tfm_target.h | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/platform/ext/target/arm/corstone1000/config_tfm_target.h b/platform/ext/target/arm/corstone1000/config_tfm_target.h
+index 2eb0924770..6ee823a7dc 100644
+--- a/platform/ext/target/arm/corstone1000/config_tfm_target.h
++++ b/platform/ext/target/arm/corstone1000/config_tfm_target.h
+@@ -1,5 +1,5 @@
+ /*
+- * Copyright (c) 2022, Arm Limited. All rights reserved.
++ * Copyright (c) 2022-2024, Arm Limited. All rights reserved.
+  *
+  * SPDX-License-Identifier: BSD-3-Clause
+  *
+@@ -24,4 +24,15 @@
+ #undef ITS_MAX_ASSET_SIZE
+ #define ITS_MAX_ASSET_SIZE   2048
+ 
++/* The maximum asset size to be stored in the Protected Storage */
++#undef PS_MAX_ASSET_SIZE
++#define PS_MAX_ASSET_SIZE   2592
++
++/* This is needed to be able to process the EFI variables during PS writes. */
++#undef CRYPTO_ENGINE_BUF_SIZE
++#define CRYPTO_ENGINE_BUF_SIZE 0x5000
++
++/* This is also has to be increased to fit the EFI variables into the iovecs. */
++#undef CRYPTO_IOVEC_BUFFER_SIZE
++#define CRYPTO_IOVEC_BUFFER_SIZE    6000
+ #endif /* __CONFIG_TFM_TARGET_H__ */
+-- 
+2.25.1
+
diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc
index 1e835b6f..55cfee5c 100644
--- a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-corstone1000.inc
@@ -27,6 +27,7 @@ SRC_URI:append:corstone1000 = " \
     file://0008-Platform-CS1000-Replace-OpenAMP-with-RSE_COMMS.patch \
     file://0009-platform-CS1000-Increase-RSE_COMMS-buffer-size.patch \
     file://0010-CC312-alignment-of-cc312-differences-between-fvp-and.patch \
+    file://0011-Platform-corstone1000-Increase-buffers-for-EFI-vars.patch \
     "
 
 # TF-M ships patches for external dependencies that needs to be applied