diff --git a/prebuilts/api/202404/public/domain.te b/prebuilts/api/202404/public/domain.te
index 0a2a5e52f..a99984eac 100644
--- a/prebuilts/api/202404/public/domain.te
+++ b/prebuilts/api/202404/public/domain.te
@@ -509,7 +509,7 @@ neverallow * rootfs:file { create write setattr relabelto append unlink link ren
 
 # Restrict context mounts to specific types marked with
 # the contextmount_type attribute.
-neverallow * {fs_type -contextmount_type}:filesystem relabelto;
+neverallow * {fs_type -contextmount_type -sdcard_posix_contextmount_type}:filesystem relabelto;
 
 # Ensure that context mount types are not writable, to ensure that
 # the write to /system restriction above is not bypassed via context=
diff --git a/prebuilts/api/34.0/public/attributes b/prebuilts/api/34.0/public/attributes
index 16a8e66af..83e04c1d7 100644
--- a/prebuilts/api/34.0/public/attributes
+++ b/prebuilts/api/34.0/public/attributes
@@ -27,6 +27,9 @@ attribute contextmount_type;
 # example.
 attribute fusefs_type;
 
+# All types used for sdcard_posix context= mounts.
+attribute sdcard_posix_contextmount_type;
+
 # All types used for files that can exist on a labeled fs.
 # Do not use for pseudo file types.
 # On change, update CHECK_FC_ASSERT_ATTRS
diff --git a/prebuilts/api/34.0/public/domain.te b/prebuilts/api/34.0/public/domain.te
index d4be2056f..4f8dc7a93 100644
--- a/prebuilts/api/34.0/public/domain.te
+++ b/prebuilts/api/34.0/public/domain.te
@@ -491,7 +491,7 @@ neverallow * rootfs:file { create write setattr relabelto append unlink link ren
 
 # Restrict context mounts to specific types marked with
 # the contextmount_type attribute.
-neverallow * {fs_type -contextmount_type}:filesystem relabelto;
+neverallow * {fs_type -contextmount_type -sdcard_posix_contextmount_type}:filesystem relabelto;
 
 # Ensure that context mount types are not writable, to ensure that
 # the write to /system restriction above is not bypassed via context=
diff --git a/public/attributes b/public/attributes
index 759b773a2..9cd89fa33 100644
--- a/public/attributes
+++ b/public/attributes
@@ -27,6 +27,9 @@ attribute contextmount_type;
 # example.
 attribute fusefs_type;
 
+# All types used for sdcard_posix context= mounts.
+attribute sdcard_posix_contextmount_type;
+
 # All types used for files that can exist on a labeled fs.
 # Do not use for pseudo file types.
 # On change, update CHECK_FC_ASSERT_ATTRS