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| author | Florian Westphal <fw@strlen.de> | 2007-06-23 22:59:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-06-23 22:59:40 -0700 |
| commit | 64beb8f3eb3c724add64ca3272915528e10213c1 (patch) | |
| tree | d1eb9ca05352243e44340f9af403c9532690b252 | |
| parent | dbbeb2f9917792b989b6269ebfe24257f9aa1618 (diff) | |
| download | linux-stable-64beb8f3eb3c724add64ca3272915528e10213c1.tar.gz linux-stable-64beb8f3eb3c724add64ca3272915528e10213c1.tar.bz2 linux-stable-64beb8f3eb3c724add64ca3272915528e10213c1.zip | |
[TIPC]: Fix infinite loop in netlink handler
The tipc netlink config handler uses the nlmsg_pid from the
request header as destination for its reply. If the application
initialized nlmsg_pid to 0, the reply is looped back to the kernel,
causing hangup. Fix: use nlmsg_pid of the skb that triggered the
request.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/tipc/netlink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c index 4cdafa2d1d4d..6a7f7b4c2595 100644 --- a/net/tipc/netlink.c +++ b/net/tipc/netlink.c @@ -60,7 +60,7 @@ static int handle_cmd(struct sk_buff *skb, struct genl_info *info) rep_nlh = nlmsg_hdr(rep_buf); memcpy(rep_nlh, req_nlh, hdr_space); rep_nlh->nlmsg_len = rep_buf->len; - genlmsg_unicast(rep_buf, req_nlh->nlmsg_pid); + genlmsg_unicast(rep_buf, NETLINK_CB(skb).pid); } return 0; |