bpf: OpenMap do not leak fd

Close fds in case of returning with an error. Signed-off-by: Kornilios Kourtis <[email protected]>
cilium · Jun 19, 2023 · 590a524 · 590a524
1 parent e60ba99
commit 590a524
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/pkg/bpf/map_linux.go b/pkg/bpf/map_linux.go
@@ -158,14 +158,17 @@ func OpenMap(name string) (*Map, error) {
 
 	info, err := GetMapInfo(os.Getpid(), fd)
 	if err != nil {
+		unix.Close(fd)
 		return nil, err
 	}
 
 	if info.MapType == 0 {
+		unix.Close(fd)
 		return nil, fmt.Errorf("Unable to determine map type")
 	}
 
 	if info.KeySize == 0 {
+		unix.Close(fd)
 		return nil, fmt.Errorf("Unable to determine map key size")
 	}