From aa595c3073231cc0aa33e7d4d9581181129c8bb3 Mon Sep 17 00:00:00 2001
From: Viktor Liu <17948409+lixmal@users.noreply.github.com>
Date: Thu, 28 Aug 2025 13:25:16 +0200
Subject: [PATCH] [client] Fix shared sock buffer allocation (#4409)

---
 sharedsock/sock_linux.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sharedsock/sock_linux.go b/sharedsock/sock_linux.go
index db428515b..d4fedc492 100644
--- a/sharedsock/sock_linux.go
+++ b/sharedsock/sock_linux.go
@@ -230,10 +230,8 @@ func (s *SharedSocket) Close() error {
 
 // read start a read loop for a specific receiver and sends the packet to the packetDemux channel
 func (s *SharedSocket) read(receiver receiver) {
-	// Buffer reuse is safe: packetDemux is unbuffered, so read() blocks until
-	// ReadFrom() synchronously processes the packet before next iteration
-	buf := make([]byte, s.mtu+maxIPUDPOverhead)
 	for {
+		buf := make([]byte, s.mtu+maxIPUDPOverhead)
 		n, addr, err := receiver(s.ctx, buf, 0)
 		select {
 		case <-s.ctx.Done():