diff --git a/modules/calib3d/src/usac/fundamental_solver.cpp b/modules/calib3d/src/usac/fundamental_solver.cpp
index d2fb6d3d10..b3ef5b0fc0 100644
--- a/modules/calib3d/src/usac/fundamental_solver.cpp
+++ b/modules/calib3d/src/usac/fundamental_solver.cpp
@@ -385,7 +385,7 @@ public:
             Matx<double, 9, 9> AtA_(AtA), U, Vt;
             Vec<double, 9> W;
             SVD::compute(AtA_, W, U, Vt, SVD::FULL_UV + SVD::MODIFY_A);
-            models = std::vector<Mat> { Mat_<double>(3, 3, Vt.val + 72 /*=8*9*/) };
+            models = std::vector<Mat> { Mat_<double>(3, 3, Vt.val + 72 /*=8*9*/).clone() };
 #endif
         }
 
@@ -503,7 +503,7 @@ public:
        Matx<double, 9, 9> AtA_(covariance), U, Vt;
        Vec<double, 9> W;
        SVD::compute(AtA_, W, U, Vt, SVD::FULL_UV + SVD::MODIFY_A);
-       models = std::vector<Mat> { Mat_<double>(3, 3, Vt.val + 72 /*=8*9*/) };
+       models = std::vector<Mat> { Mat_<double>(3, 3, Vt.val + 72 /*=8*9*/).clone() };
 #endif
         if (enforce_rank)
             FundamentalDegeneracy::recoverRank(models[0], is_fundamental);
diff --git a/modules/calib3d/src/usac/homography_solver.cpp b/modules/calib3d/src/usac/homography_solver.cpp
index 3be5f2dc20..fe528f59a6 100644
--- a/modules/calib3d/src/usac/homography_solver.cpp
+++ b/modules/calib3d/src/usac/homography_solver.cpp
@@ -253,7 +253,7 @@ public:
             Matx<double, 9, 9> Vt;
             Vec<double, 9> D;
             if (! eigen(Matx<double, 9, 9>(AtA), D, Vt)) return 0;
-            H = Mat_<double>(3, 3, Vt.val + 72/*=8*9*/);
+            H = Mat_<double>(3, 3, Vt.val + 72/*=8*9*/).clone();
 #endif
         }
         const auto * const h = (double *) H.data;