diff --git a/src/gpu/ganesh/ops/AtlasTextOp.cpp b/src/gpu/ganesh/ops/AtlasTextOp.cpp
index 27e919e2600..8ba42a0eb5d 100644
--- a/src/gpu/ganesh/ops/AtlasTextOp.cpp
+++ b/src/gpu/ganesh/ops/AtlasTextOp.cpp
@@ -565,11 +565,17 @@ void AtlasTextOp::onPrepareDraws(GrMeshDrawTarget* target) {
 
         auto& glyphData = subRun.glyphVector().accessBackendData<GlyphData>();
 
-        SkDEBUGCODE(int strideCheck = SkToInt(glyphData.vertexStride(subRun.maskFormat(),
-                                                                     geo->fDrawMatrix)));
-        SkASSERTF(strideCheck == vertexStride,
-                   "subRun stride: %d vertex buffer stride: %d\n",
-                   strideCheck, vertexStride);
+        // The CPU vertex-fill struct (GlyphData::fillVertexData) is selected
+        // from positionMatrix.hasPerspective(), but the SDF GeometryProcessor
+        // stride is selected from viewDifference.hasPerspective(). A
+        // serialized SDFTSubRun with a forged perspective creationMatrix can
+        // decouple these and cause fill3D to overrun the vertex allocation.
+        // Drop the op if the strides disagree.
+        const int strideCheck =
+                SkToInt(glyphData.vertexStride(subRun.maskFormat(), geo->fDrawMatrix));
+        if (strideCheck != vertexStride) {
+            return;
+        }
 
         const int subRunEnd = subRun.glyphCount();