This is a note to let you know that I've just added the patch titled
net/ping: handle protocol mismatching scenario
to the 3.17-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-ping-handle-protocol-mismatching-scenario.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 91a0b603469069cdcce4d572b7525ffc9fd352a6 Mon Sep 17 00:00:00 2001
From: Jane Zhou <[email protected]>
Date: Mon, 24 Nov 2014 11:44:08 -0800
Subject: net/ping: handle protocol mismatching scenario
From: Jane Zhou <[email protected]>
commit 91a0b603469069cdcce4d572b7525ffc9fd352a6 upstream.
ping_lookup() may return a wrong sock if sk_buff's and sock's protocols
dont' match. For example, sk_buff's protocol is ETH_P_IPV6, but sock's
sk_family is AF_INET, in that case, if sk->sk_bound_dev_if is zero, a wrong
sock will be returned.
the fix is to "continue" the searching, if no matching, return NULL.
Cc: "David S. Miller" <[email protected]>
Cc: Alexey Kuznetsov <[email protected]>
Cc: James Morris <[email protected]>
Cc: Hideaki YOSHIFUJI <[email protected]>
Cc: Patrick McHardy <[email protected]>
Cc: [email protected]
Signed-off-by: Jane Zhou <[email protected]>
Signed-off-by: Yiwei Zhao <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ipv4/ping.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -217,6 +217,8 @@ static struct sock *ping_lookup(struct n
&ipv6_hdr(skb)->daddr))
continue;
#endif
+ } else {
+ continue;
}
if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)
Patches currently in stable-queue which might be from [email protected] are
queue-3.17/net-ping-handle-protocol-mismatching-scenario.patch
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