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QUIC sniffer: Fix potential slice panic (#4732)

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Fixes https://github.com/XTLS/Xray-core/issues/3914#issuecomment-2853392827
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风扇滑翔翼 2025-05-16 20:08:29 +08:00 • committed by GitHub
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4
common/protocol/quic/sniff.go
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@ -114,6 +114,10 @@ func SniffQUIC(b []byte) (*SniffHeader, error) {
if err != nil {
return nil, errNotQuic
}
// packetLen is impossible to be shorter than this
if packetLen < 4 {
return nil, errNotQuic
}
hdrLen := len(b) - int(buffer.Len())
if len(b) < hdrLen+int(packetLen) {