changelog and comment

CHANGELOG.md

@@ -18,6 +18,7 @@ BUG FIXES:
  * cli: Make scoring column orders consistent `nomad alloc status` [[GH-6609](https://github.com/hashicorp/nomad/issues/6609)]
  * cli: Fixed a bug where a cli user may fail to query FS/Allocation API endpoints if they lack `node:read` capability [[GH-6423](https://github.com/hashicorp/nomad/issues/6423)]
  * client: Fixed a bug where a client may not restart dead internal processes upon client's restart on Windows [[GH-6426](https://github.com/hashicorp/nomad/issues/6426)]
+ * driver/exec: Fixed a bug where exec tasks can spawn processes that live beyond task lifecycle [[GH-6722](https://github.com/hashicorp/nomad/issues/6722)]
  * driver/docker: Added mechanism for detecting running unexpectedly running docker containers [[GH-6325](https://github.com/hashicorp/nomad/issues/6325)]
  * nomad: Multiple connect enabled services in the same taskgroup failed to
    register [[GH-6646](https://github.com/hashicorp/nomad/issues/6646)]

drivers/exec/driver_test.go

@@ -254,6 +254,8 @@ func TestExecDriver_StartWaitRecover(t *testing.T) {
 	require.NoError(harness.DestroyTask(task.ID, true))
 }
 
+// TestExecDriver_DestroyKillsAll asserts that when TaskDestroy is called all
+// task processes are cleaned up.
 func TestExecDriver_DestroyKillsAll(t *testing.T) {
 	t.Parallel()
 	require := require.New(t)

drivers/rawexec/driver_unix_test.go

@@ -200,6 +200,8 @@ func TestRawExecDriver_StartWaitStop(t *testing.T) {
 	require.NoError(harness.DestroyTask(task.ID, true))
 }
 
+// TestRawExecDriver_DestroyKillsAll asserts that when TaskDestroy is called all
+// task processes are cleaned up.
 func TestRawExecDriver_DestroyKillsAll(t *testing.T) {
 	t.Parallel()