This is a note to let you know that I've just added the patch titled
tipc: check nl sock before parsing nested attributes
to the 4.6-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:
tipc-check-nl-sock-before-parsing-nested-attributes.patch
and it can be found in the queue-4.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Jun 17 08:34:39 PDT 2016
From: Richard Alpe <richard.alpe@xxxxxxxxxxxx>
Date: Mon, 16 May 2016 11:14:54 +0200
Subject: tipc: check nl sock before parsing nested attributes
From: Richard Alpe <richard.alpe@xxxxxxxxxxxx>
[ Upstream commit 45e093ae2830cd1264677d47ff9a95a71f5d9f9c ]
Make sure the socket for which the user is listing publication exists
before parsing the socket netlink attributes.
Prior to this patch a call without any socket caused a NULL pointer
dereference in tipc_nl_publ_dump().
Tested-and-reported-by: Baozeng Ding <sploving1@xxxxxxxxx>
Signed-off-by: Richard Alpe <richard.alpe@xxxxxxxxxxxx>
Acked-by: Jon Maloy <jon.maloy@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/tipc/socket.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2807,6 +2807,9 @@ int tipc_nl_publ_dump(struct sk_buff *sk
if (err)
return err;
+ if (!attrs[TIPC_NLA_SOCK])
+ return -EINVAL;
+
err = nla_parse_nested(sock, TIPC_NLA_SOCK_MAX,
attrs[TIPC_NLA_SOCK],
tipc_nl_sock_policy);
Patches currently in stable-queue which might be from richard.alpe@xxxxxxxxxxxx are
queue-4.6/tipc-check-nl-sock-before-parsing-nested-attributes.patch
queue-4.6/tipc-fix-nametable-publication-field-in-nl-compat.patch
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