diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 1556f6e854613..7f75cfc5b54f3 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -21124,6 +21124,8 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
               ExprTy = ATy->getElementType();
             else
               ExprTy = BaseType->getPointeeType();
+            if (BaseType.isNull() || ExprTy.isNull())
+              return nullptr;
             ExprTy = ExprTy.getNonReferenceType();
             const Expr *Length = OASE->getLength();
             Expr::EvalResult Result;
diff --git a/clang/test/OpenMP/bug69085.c b/clang/test/OpenMP/bug69085.c
new file mode 100644
index 0000000000000..1017ea53b41e3
--- /dev/null
+++ b/clang/test/OpenMP/bug69085.c
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -verify -O0 -fopenmp-simd %s
+
+int k[-1]; // expected-error {{'k' declared as an array with a negative size}}
+
+void foo() {
+    #pragma omp task depend(inout: k [:])
+    {
+        k[0] = 1;
+    }
+}