From 491f8ab14493babb1c06e240c7a9de64f34827a0 Mon Sep 17 00:00:00 2001
From: Alexander Morozov <lk4d4@docker.com>
Date: Mon, 16 Mar 2015 15:34:43 -0700
Subject: [PATCH] Fix IPv6 autoallocation from mac with --ipv6-cidr
We used slice globalIPv6Network.IP itself, not its copy as expected.
Fixes #10774
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
---
daemon/networkdriver/bridge/driver.go | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/daemon/networkdriver/bridge/driver.go b/daemon/networkdriver/bridge/driver.go
index 329052be41..100ed2d79f 100644
--- a/daemon/networkdriver/bridge/driver.go
+++ b/daemon/networkdriver/bridge/driver.go
@@ -522,7 +522,8 @@ func Allocate(job *engine.Job) engine.Status {
// If globalIPv6Network Size is at least a /80 subnet generate IPv6 address from MAC address
netmask_ones, _ := globalIPv6Network.Mask.Size()
if requestedIPv6 == nil && netmask_ones <= 80 {
- requestedIPv6 = globalIPv6Network.IP
+ requestedIPv6 = make(net.IP, len(globalIPv6Network.IP))
+ copy(requestedIPv6, globalIPv6Network.IP)
for i, h := range mac {
requestedIPv6[i+10] = h
}