diff --git a/src/libANGLE/renderer/metal/TextureMtl.mm b/src/libANGLE/renderer/metal/TextureMtl.mm
--- a/src/libANGLE/renderer/metal/TextureMtl.mm
+++ b/src/libANGLE/renderer/metal/TextureMtl.mm
@@ -1162,15 +1162,24 @@
 angle::Result TextureMtl::createViewFromBaseToMaxLevel()
 {
     ASSERT(mNativeTextureStorage);
+
+    // Clamp the requested base level into the native storage's actual mip
+    // range.  On the pBuffer / IOSurface path the texture is not immutable, so
+    // gl::TextureState::getEffectiveBaseLevel() can return a value beyond the
+    // 1-mip storage; passing that to createMipsView() would hand an
+    // out-of-range NSRange to -[MTLTexture newTextureViewWithPixelFormat:
+    // textureType:levels:slices:], which is undefined behaviour.
+    const uint32_t effectiveBase =
+        std::clamp(mState.getEffectiveBaseLevel(), mNativeTextureStorage->getBaseGLLevel(),
+                   mNativeTextureStorage->getMaxSupportedGLLevel());
+
     uint32_t maxLevel =
         std::min(mNativeTextureStorage->getMaxSupportedGLLevel(), mState.getEffectiveMaxLevel());
-
-    // In edge case where base level > max level, clamp up to base level.
-    maxLevel = std::max(maxLevel, mState.getEffectiveBaseLevel());
+    maxLevel = std::max(maxLevel, effectiveBase);

     mtl::TextureRef nativeViewFromBaseToMaxLevelRef;
     if (maxLevel == mNativeTextureStorage->getMaxSupportedGLLevel() &&
-        mState.getEffectiveBaseLevel() == mNativeTextureStorage->getBaseGLLevel())
+        effectiveBase == mNativeTextureStorage->getBaseGLLevel())
     {
         // If base & max level are the same in mNativeTextureStorage, we don't need
         // a dedicated view. Furthermore, Intel driver has some bugs when sampling a view
@@ -1179,13 +1188,13 @@
     }
     else
     {
-        uint32_t baseToMaxLevels = maxLevel - mState.getEffectiveBaseLevel() + 1;
+        uint32_t baseToMaxLevels = maxLevel - effectiveBase + 1;
         nativeViewFromBaseToMaxLevelRef =
-            mNativeTextureStorage->createMipsView(mState.getEffectiveBaseLevel(), baseToMaxLevels);
+            mNativeTextureStorage->createMipsView(effectiveBase, baseToMaxLevels);
     }

     mViewFromBaseToMaxLevel = std::make_unique<NativeTextureWrapper>(
-        nativeViewFromBaseToMaxLevelRef, mState.getEffectiveBaseLevel(),
+        nativeViewFromBaseToMaxLevelRef, effectiveBase,
         mNativeTextureStorage->getFormat());

     // Recreate in bindToShader()