diff --git a/pkg/meta/redis.go b/pkg/meta/redis.go
index 3c09d2c442dc..c57ce268d7c6 100644
--- a/pkg/meta/redis.go
+++ b/pkg/meta/redis.go
@@ -949,6 +949,7 @@ func (m *redisMeta) Fallocate(ctx Context, inode Ino, mode uint8, off uint64, si
 		_, err = tx.TxPipelined(ctx, func(pipe redis.Pipeliner) error {
 			pipe.Set(ctx, m.inodeKey(inode), m.marshal(&t), 0)
 			if mode&(fallocZeroRange|fallocPunchHole) != 0 && off < old {
+				off, size := off, size
 				if off+size > old {
 					size = old - off
 				}
@@ -2041,6 +2042,7 @@ func (m *redisMeta) CopyFileRange(ctx Context, fin Ino, offIn uint64, fout Ino,
 			*copied = 0
 			return nil
 		}
+		size := size
 		if offIn+size > sattr.Length {
 			size = sattr.Length - offIn
 		}
diff --git a/pkg/meta/sql.go b/pkg/meta/sql.go
index 672e262781ad..7f9418a25580 100644
--- a/pkg/meta/sql.go
+++ b/pkg/meta/sql.go
@@ -1031,6 +1031,7 @@ func (m *dbMeta) Fallocate(ctx Context, inode Ino, mode uint8, off uint64, size
 			return err
 		}
 		if mode&(fallocZeroRange|fallocPunchHole) != 0 && off < old {
+			off, size := off, size
 			if off+size > old {
 				size = old - off
 			}
@@ -2043,6 +2044,7 @@ func (m *dbMeta) CopyFileRange(ctx Context, fin Ino, offIn uint64, fout Ino, off
 			*copied = 0
 			return nil
 		}
+		size := size
 		if offIn+size > nin.Length {
 			size = nin.Length - offIn
 		}
diff --git a/pkg/meta/tkv.go b/pkg/meta/tkv.go
index ca7bd01f5236..727cf1311f53 100644
--- a/pkg/meta/tkv.go
+++ b/pkg/meta/tkv.go
@@ -929,6 +929,7 @@ func (m *kvMeta) Fallocate(ctx Context, inode Ino, mode uint8, off uint64, size
 		t.Ctimensec = uint32(now.Nanosecond())
 		tx.set(m.inodeKey(inode), m.marshal(&t))
 		if mode&(fallocZeroRange|fallocPunchHole) != 0 && off < old {
+			off, size := off, size
 			if off+size > old {
 				size = old - off
 			}
@@ -1727,6 +1728,7 @@ func (m *kvMeta) CopyFileRange(ctx Context, fin Ino, offIn uint64, fout Ino, off
 			*copied = 0
 			return nil
 		}
+		size := size
 		if offIn+size > sattr.Length {
 			size = sattr.Length - offIn
 		}