diff --git a/pkg/vfs/vfs.go b/pkg/vfs/vfs.go
index 2337cdd68eb7..6e7a69ed3467 100644
--- a/pkg/vfs/vfs.go
+++ b/pkg/vfs/vfs.go
@@ -633,7 +633,7 @@ func (v *VFS) Release(ctx Context, ino Ino, fh uint64) {
 				v.invalidateAttr(ino)
 			}
 			if locks&1 != 0 {
-				_ = v.Meta.Flock(ctx, ino, fowner, F_UNLCK, false)
+				_ = v.Meta.Flock(ctx, ino, fowner^fh, F_UNLCK, false)
 			}
 			if locks&2 != 0 && powner != 0 {
 				_ = v.Meta.Setlk(ctx, ino, powner, false, F_UNLCK, 0, 0x7FFFFFFFFFFFFFFF, 0)
diff --git a/pkg/vfs/vfs_unix.go b/pkg/vfs/vfs_unix.go
index d7fcea8eaee7..dfe0e9eb8619 100644
--- a/pkg/vfs/vfs_unix.go
+++ b/pkg/vfs/vfs_unix.go
@@ -295,7 +295,7 @@ func (v *VFS) Flock(ctx Context, ino Ino, fh uint64, owner uint64, typ uint32, b
 	}
 	h.addOp(ctx)
 	defer h.removeOp(ctx)
-	err = v.Meta.Flock(ctx, ino, owner, typ, block)
+	err = v.Meta.Flock(ctx, ino, owner^fh, typ, block)
 	if err == 0 {
 		h.Lock()
 		if typ == syscall.F_UNLCK {