diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 1144e741feb6..03d5d1374ca7 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains common generic and tag-based KASAN code.
  *
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index b8de6d33c55c..ccb6207276e3 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains core generic KASAN code.
  *
diff --git a/mm/kasan/generic_report.c b/mm/kasan/generic_report.c
index a4604cceae59..5e12035888f2 100644
--- a/mm/kasan/generic_report.c
+++ b/mm/kasan/generic_report.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains generic KASAN specific error reporting code.
  *
diff --git a/mm/kasan/init.c b/mm/kasan/init.c
index 2b21d3717d62..34afad56497b 100644
--- a/mm/kasan/init.c
+++ b/mm/kasan/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains some kasan initialization code.
  *
diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c
index b209dbaefde8..57334ef2d7ef 100644
--- a/mm/kasan/quarantine.c
+++ b/mm/kasan/quarantine.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * KASAN quarantine.
  *
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 214d85035f99..ca9418fe9232 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains common generic and tag-based KASAN error reporting code.
  *
diff --git a/mm/kasan/tags.c b/mm/kasan/tags.c
index 1d1b79350e28..0777649e07c4 100644
--- a/mm/kasan/tags.c
+++ b/mm/kasan/tags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains core tag-based KASAN code.
  *
diff --git a/mm/kasan/tags_report.c b/mm/kasan/tags_report.c
index 573c51d20d09..8eaf5f722271 100644
--- a/mm/kasan/tags_report.c
+++ b/mm/kasan/tags_report.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains tag-based KASAN specific error reporting code.
  *