diff --git a/board/xilinx/linux_6.18.40/patches/linux-headers/linux-headers.hash b/board/xilinx/linux_6.18.40/patches/linux-headers/linux-headers.hash
new file mode 120000
index 0000000000..5808d92afe
--- /dev/null
+++ b/board/xilinx/linux_6.18.40/patches/linux-headers/linux-headers.hash
@@ -0,0 +1 @@
+../linux/linux.hash
\ No newline at end of file
diff --git a/board/xilinx/linux_6.18.40/patches/linux/linux.hash b/board/xilinx/linux_6.18.40/patches/linux/linux.hash
new file mode 100644
index 0000000000..f0b8984573
--- /dev/null
+++ b/board/xilinx/linux_6.18.40/patches/linux/linux.hash
@@ -0,0 +1,7 @@
+# Locally calculated
+sha256  bdb5c40d7b43f8a1ea6ee34e2392a389935120b11cf54c36ad3ccff937b1a179  xlnx_rebase_v6.18_LTS_2026.1_update_merge_v6.18.40.tar.gz
+
+# Locally calculated
+sha256  fb5a425bd3b3cd6071a3a9aff9909a859e7c1158d54d32e07658398cd67eb6a0  COPYING
+sha256  8780e78a1a737e127f25a65f6d95269bffd36158dc261114de7859b490bfc5aa  LICENSES/preferred/GPL-2.0
+sha256  8e378ab93586eb55135d3bc119cce787f7324f48394777d00c34fa3d0be3303f  LICENSES/exceptions/Linux-syscall-note