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SubjectRe: 2.6.19 panic on boot -- i386
From
From: Pete Clements <clem@clem.clem-digital.net>
Date: Wed, 29 Nov 2006 22:13:09 -0500 (EST)

> 2.6.19 panics at boot. Good up through rc6-git11.
> Hand copied screen below.

Here is the fix, which was posted in response to a seperate
report of this problem here:

commit c28728decc37fe52c8cdf48b3e0c0cf9b0c2fefb
Author: David S. Miller <davem@sunset.davemloft.net>
Date: Wed Nov 29 18:14:47 2006 -0800

[IPV6] NDISC: Calculate packet length correctly for allocation.

MAX_HEADER does not include the ipv6 header length in it,
so we need to add it in explicitly.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 73eb8c3..c42d4c2 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -441,7 +441,8 @@ static void ndisc_send_na(struct net_dev
struct sk_buff *skb;
int err;

- len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
+ len = sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr) +
+ sizeof(struct in6_addr);

/* for anycast or proxy, solicited_addr != src_addr */
ifp = ipv6_get_ifaddr(solicited_addr, dev, 1);
@@ -556,7 +557,8 @@ void ndisc_send_ns(struct net_device *de
if (err < 0)
return;

- len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
+ len = sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr) +
+ sizeof(struct in6_addr);
send_llinfo = dev->addr_len && !ipv6_addr_any(saddr);
if (send_llinfo)
len += ndisc_opt_addr_space(dev);
@@ -632,7 +634,7 @@ void ndisc_send_rs(struct net_device *de
if (err < 0)
return;

- len = sizeof(struct icmp6hdr);
+ len = sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr);
if (dev->addr_len)
len += ndisc_opt_addr_space(dev);

@@ -1381,7 +1383,8 @@ void ndisc_send_redirect(struct sk_buff
struct in6_addr *target)
{
struct sock *sk = ndisc_socket->sk;
- int len = sizeof(struct icmp6hdr) + 2 * sizeof(struct in6_addr);
+ int len = sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr) +
+ 2 * sizeof(struct in6_addr);
struct sk_buff *buff;
struct icmp6hdr *icmph;
struct in6_addr saddr_buf;
-
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