tests: Add trigger for overflow in texture data upload

Related #140

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>

tests/test_fuzzer_formats.c

@@ -614,6 +614,46 @@ static void test_heap_overflow_vrend_renderer_transfer_write_iov()
    virgl_renderer_submit_cmd((void *) cmd, ctx_id, 11 + 4 + 1);
 }
 
+static void test_heap_overflow_vrend_renderer_transfer_write_iov_compressed_tex()
+{
+   struct virgl_renderer_resource_create_args args;
+   args.handle = 1;
+   args.target = 5;
+   args.format = 203;
+   args.bind = 1;
+   args.width = 100;
+   args.height = 1;
+   args.depth = 1;
+   args.array_size = 0;
+   args.last_level = 0;
+   args.nr_samples = 0;
+   args.flags = 1;
+
+   virgl_renderer_resource_create(&args, NULL, 0);
+   virgl_renderer_ctx_attach_resource(ctx_id, args.handle);
+
+   char data[16];
+   memset(data, 'A', 16);
+   uint32_t cmd[11 + 4 +1];
+
+   int i = 0;
+   cmd[i++] = (11+4) << 16 | 0 << 8 | VIRGL_CCMD_RESOURCE_INLINE_WRITE;
+   cmd[i++] = 1; // handle
+   cmd[i++] = 0; // level
+   cmd[i++] = 0; // usage
+   cmd[i++] = 135168; // stride
+   cmd[i++] = 655361; // layer_stride
+   cmd[i++] = 1; // x
+   cmd[i++] = 0; // y
+   cmd[i++] = 0; // z
+   cmd[i++] = 5; // w
+   cmd[i++] = 1; // h
+   cmd[i++] = 0; // d
+   memcpy(&cmd[i], data, 16);
+
+   virgl_renderer_submit_cmd((void *) cmd, ctx_id, 11 + 4 + 1);
+}
+
 int main()
 {
    initialize_environment();
@@ -630,6 +670,7 @@ int main()
    test_format_is_has_alpha_nullptr_deref_trigger_legal_resource();
 
    test_heap_overflow_vrend_renderer_transfer_write_iov();
+   test_heap_overflow_vrend_renderer_transfer_write_iov_compressed_tex();
 
    virgl_renderer_context_destroy(ctx_id);
    virgl_renderer_cleanup(&cookie);