diff --git a/local/patches/base/P46b-ac97d-mutable-fix.patch b/local/patches/base/P46b-ac97d-mutable-fix.patch
new file mode 100644
index 0000000000..3c1a9da5b4
--- /dev/null
+++ b/local/patches/base/P46b-ac97d-mutable-fix.patch
@@ -0,0 +1,5 @@
+--- a/drivers/audio/ac97d/src/main.rs
++++ b/drivers/audio/ac97d/src/main.rs
+@@ -20 +20 @@ fn main() {
+-fn daemon(daemon: daemon::Daemon, pcid_handle: PciFunctionHandle) -> ! {
++fn daemon(daemon: daemon::Daemon, mut pcid_handle: PciFunctionHandle) -> ! {
diff --git a/recipes/core/base/P46b-ac97d-mutable-fix.patch b/recipes/core/base/P46b-ac97d-mutable-fix.patch
new file mode 120000
index 0000000000..8e16e55b18
--- /dev/null
+++ b/recipes/core/base/P46b-ac97d-mutable-fix.patch
@@ -0,0 +1 @@
+../../../local/patches/base/P46b-ac97d-mutable-fix.patch
\ No newline at end of file
diff --git a/recipes/core/base/recipe.toml b/recipes/core/base/recipe.toml
index 49293f5d53..39549d21e1 100644
--- a/recipes/core/base/recipe.toml
+++ b/recipes/core/base/recipe.toml
@@ -95,6 +95,8 @@ patches = [
     "P45-net-msix-adoption.patch",
     # P46: Migrate ahcid and ac97d to MSI-X via pci_allocate_interrupt_vector
     "P46-storage-audio-msix.patch",
+    # P46b: Fix ac97d mutable borrow of pcid_handle (required by pci_allocate_interrupt_vector)
+    "P46b-ac97d-mutable-fix.patch",
     # P47: Update thermald to read from P44 thermal zones and coretempd
     "P47-thermald-backend.patch",
     # P48: Add ACPI fan device discovery and status exposure