Fix abort on empty boolean-mask advanced indexing

CHANGELOG.md

@@ -80,6 +80,7 @@ This release is compatible with NumPy 2.5.
 * Fixed `dpnp.bincount` raising a `ValueError` on an empty input array instead of returning an empty `intp` array [#3018](https://github.com/IntelPython/dpnp/pull/3018)
 * Fixed `dpnp.tensor.top_k` aborting for `k=0` by returning empty result arrays without launching a zero-sized kernel [#3022](https://github.com/IntelPython/dpnp/pull/3022)
 * Fixed comparison functions (`dpnp.equal`, `dpnp.not_equal`, `dpnp.less`, `dpnp.less_equal`, `dpnp.greater`, `dpnp.greater_equal`) and `dpnp.divide` raising `OverflowError` when comparing an integer array against a Python integer scalar outside the array dtype's range [#3017](https://github.com/IntelPython/dpnp/pull/3017)
+* Fixed a crash in boolean-mask advanced indexing (`dpnp.ndarray` get/set item) when the selection is empty (e.g. a scalar `False` index that injects a length-0 axis) [#3019](https://github.com/IntelPython/dpnp/pull/3019)
 
 ### Security
 

dpnp/tensor/libtensor/source/boolean_advanced_indexing.cpp

@@ -217,6 +217,11 @@ std::pair<sycl::event, sycl::event>
         throw py::value_error("Inconsistent array dimensions");
     }
 
+    if (ortho_nelems == 0 || masked_src_nelems == 0) {
+        // nothing to do
+        return std::make_pair(sycl::event(), sycl::event());
+    }
+
     dpnp::tensor::validation::AmpleMemory::throw_if_not_ample(
         dst, ortho_nelems * masked_dst_nelems);
 
@@ -542,6 +547,11 @@ std::pair<sycl::event, sycl::event>
         throw py::value_error("Inconsistent array dimensions");
     }
 
+    if (ortho_nelems == 0 || masked_dst_nelems == 0) {
+        // nothing to do
+        return std::make_pair(sycl::event(), sycl::event());
+    }
+
     dpnp::tensor::validation::AmpleMemory::throw_if_not_ample(
         dst, ortho_nelems * masked_dst_nelems);