Messages in this thread Patch in this message | | | From | Nicolas Dichtel <> | Subject | [PATCH net] netlink: avoid a double skb free in genlmsg_mcast() | Date | Wed, 14 Mar 2018 21:10:23 +0100 |
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nlmsg_multicast() consumes always the skb, thus the original skb must be freed only when this function is called with a clone.
Fixes: cb9f7a9a5c96 ("netlink: ensure to loop over all netns in genlmsg_multicast_allns()") Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> --- net/netlink/genetlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 6f02499ef007..b9ce82c9440f 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -1106,7 +1106,7 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group, if (!err) delivered = true; else if (err != -ESRCH) - goto error; + return err; return delivered ? 0 : -ESRCH; error: kfree_skb(skb); -- 2.15.1
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