pkg/sensors: fix memory use of unloaded sensors

Sensors that are disabled are not loaded and should not use memory, thus we clear the LoadedMapsInfo on unloading programs. Signed-off-by: Mahe Tardy <[email protected]>
cilium · Oct 23, 2024 · 8e2c979 · 8e2c979
1 parent dd04c6c
commit 8e2c979
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/pkg/sensors/program/program.go b/pkg/sensors/program/program.go
@@ -206,6 +206,11 @@ func (p *Program) Unload() error {
 	}
 	p.unloader = nil
 	p.unloaderOverride = nil
+	// The above unloader can succeed while not removing a pin to the program
+	// because of option.Config.KeepSensorsOnExit, and thus the maps remain.
+	if !p.Prog.IsPinned() {
+		p.LoadedMapsInfo = nil
+	}
 	return nil
 }