Omit sandbox from chown test.

This test fails because it must include additional UIDs. Omit
the bazel sandbox to ensure that it can function correctly.

PiperOrigin-RevId: 343927190

test/syscalls/linux/BUILD

@@ -432,6 +432,9 @@ cc_binary(
     testonly = 1,
     srcs = ["chown.cc"],
     linkstatic = 1,
+    # We require additional UIDs for this test, so don't include the bazel
+    # sandbox as standard.
+    tags = ["no-sandbox"],
     deps = [
         "//test/util:capability_util",
         "//test/util:file_descriptor",

test/syscalls/linux/chown.cc

@@ -90,6 +90,7 @@ TEST_P(ChownParamTest, ChownFilePermissionDenied) {
   SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SETUID)));
 
   const auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileMode(0777));
+  EXPECT_THAT(chmod(GetAbsoluteTestTmpdir().c_str(), 0777), SyscallSucceeds());
 
   // Drop privileges and change IDs only in child thread, or else this parent
   // thread won't be able to open some log files after the test ends.
@@ -119,6 +120,7 @@ TEST_P(ChownParamTest, ChownFileSucceedsAsRoot) {
   SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability((CAP_SETUID))));
 
   const std::string filename = NewTempAbsPath();
+  EXPECT_THAT(chmod(GetAbsoluteTestTmpdir().c_str(), 0777), SyscallSucceeds());
 
   absl::Notification fileCreated, fileChowned;
   // Change UID only in child thread, or else this parent thread won't be able