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Diffstat (limited to 'tags/2.6.18-5/30008_ipv6_fl_socklist-no-share.patch')
-rw-r--r--tags/2.6.18-5/30008_ipv6_fl_socklist-no-share.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/tags/2.6.18-5/30008_ipv6_fl_socklist-no-share.patch b/tags/2.6.18-5/30008_ipv6_fl_socklist-no-share.patch
new file mode 100644
index 0000000..8749435
--- /dev/null
+++ b/tags/2.6.18-5/30008_ipv6_fl_socklist-no-share.patch
@@ -0,0 +1,32 @@
+From: Masayuki Nakagawa <nakagawa.msy@ncos.nec.co.jp>
+Date: Fri, 16 Mar 2007 23:14:03 +0000 (-0700)
+Subject: [IPV6]: ipv6_fl_socklist is inadvertently shared.
+X-Git-Tag: v2.6.21-rc5~72^2
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=d35690beda1429544d46c8eb34b2e3a8c37ab299
+
+[IPV6]: ipv6_fl_socklist is inadvertently shared.
+
+The ipv6_fl_socklist from listening socket is inadvertently shared
+with new socket created for connection. This leads to a variety of
+interesting, but fatal, bugs. For example, removing one of the
+sockets may lead to the other socket's encountering a page fault
+when the now freed list is referenced.
+
+The fix is to not share the flow label list with the new socket.
+
+Signed-off-by: Masayuki Nakagawa <nakagawa.msy@ncos.nec.co.jp>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
+index f57a9ba..92f9992 100644
+--- a/net/ipv6/tcp_ipv6.c
++++ b/net/ipv6/tcp_ipv6.c
+@@ -1453,6 +1453,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
+ First: no IPv4 options.
+ */
+ newinet->opt = NULL;
++ newnp->ipv6_fl_list = NULL;
+
+ /* Clone RX bits */
+ newnp->rxopt.all = np->rxopt.all;