perf: verify message length for msgTypeRegister

Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
2026-02-27 09:53:24 +08:00 · 2021-10-12 06:12:55 +00:00
parent 79f88f5671
commit 0e7632d113
1 changed files with 5 additions and 0 deletions
@@ -227,6 +227,11 @@ func (dev *device) readLoop() {

 		switch typ {
 		case msgTypeRegister:
+			if msgLen < 2 {
+				log.Error().Msg("msgTypeRegister: invalid")
+				return
+			}
+
 			if !parseDeviceInfo(dev, b) {
 				return
 			}