Update CHANGELOG.md

Signed-off-by: Nikolay <nik@victoriametrics.com>

app/vmselect/netstorage/netstorage.go

@@ -502,7 +502,8 @@ func (pts *packedTimeseries) unpackTo(dst []*sortBlock, tbfs []*tmpBlocksFile, t
 			initUnpackWork(upw, addr)
 			upw.unpack(tmpBlock)
 			if upw.err != nil {
-				return dst, upw.err
+				err = upw.err
+				break
 			}
 			samples += len(upw.sb.Timestamps)
 			if *maxSamplesPerSeries > 0 && samples > *maxSamplesPerSeries {
@@ -518,7 +519,11 @@ func (pts *packedTimeseries) unpackTo(dst []*sortBlock, tbfs []*tmpBlocksFile, t
 		}
 		putTmpStorageBlock(tmpBlock)
 		putUnpackWork(upw)
-
+		if err != nil {
+			for _, sb := range dst {
+				putSortBlock(sb)
+			}
+		}
 		return dst, err
 	}
 
@@ -584,6 +589,11 @@ func (pts *packedTimeseries) unpackTo(dst []*sortBlock, tbfs []*tmpBlocksFile, t
 		}
 		putUnpackWork(upw)
 	}
+	if firstErr != nil {
+		for _, sb := range dst {
+			putSortBlock(sb)
+		}
+	}
 
 	return dst, firstErr
 }

docs/victoriametrics/changelog/CHANGELOG.md

@@ -26,6 +26,8 @@ See also [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-rel
 
 ## tip
 
+* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): consistently re-use memory during storage blocks unpacking on parsing storage block error. See [#11421](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11421).
+
 ## [v1.150.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.150.0)
 
 Released at 2026-08-17