p.PubrelProperties.Unpack(b) EOF

zhangkang0911 · web-flow · commit 3036d789f5b1 · 2025-11-25T17:39:51.000+08:00
When `RemainingLength=3`, calling `p.PubrelProperties.Unpack(b)` results in an EOF error.
diff --git a/pkg/mqtt/codec/v5/pubrel.go b/pkg/mqtt/codec/v5/pubrel.go
@@ -66,6 +66,8 @@ func (p *PubrelPacket) Unpack(b io.Reader) (err error) {
 		if err != nil {
 			return err
 		}
+	}
+	if p.RemainingLength > 3 {
 		err = p.PubrelProperties.Unpack(b)
 		if err != nil {
 			return err

Original file line number	Diff line number	Diff line change
`@@ -66,6 +66,8 @@ func (p *PubrelPacket) Unpack(b io.Reader) (err error) {`
`66`	`66`	`if err != nil {`
`67`	`67`	`return err`
`68`	`68`	`}`
	`69`	`+ }`
	`70`	`+ if p.RemainingLength > 3 {`
`69`	`71`	`err = p.PubrelProperties.Unpack(b)`
`70`	`72`	`if err != nil {`
`71`	`73`	`return err`