This is a note to let you know that I've just added the patch titled
sctp: Initialize daddr on peeled off socket
to the 5.17-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:
sctp-initialize-daddr-on-peeled-off-socket.patch
and it can be found in the queue-5.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ac5bc88498f59ff84fc39d99e4ff86d4e258d5e2
Author: Petr Malat <oss@xxxxxxxxx>
Date: Sat Apr 9 08:36:11 2022 +0200
sctp: Initialize daddr on peeled off socket
[ Upstream commit 8467dda0c26583547731e7f3ea73fc3856bae3bf ]
Function sctp_do_peeloff() wrongly initializes daddr of the original
socket instead of the peeled off socket, which makes getpeername()
return zeroes instead of the primary address. Initialize the new socket
instead.
Fixes: d570ee490fb1 ("[SCTP]: Correctly set daddr for IPv6 sockets during peeloff")
Signed-off-by: Petr Malat <oss@xxxxxxxxx>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220409063611.673193-1-oss@xxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 3e1a9600be5e..7b0427658056 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5636,7 +5636,7 @@ int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp)
* Set the daddr and initialize id to something more random and also
* copy over any ip options.
*/
- sp->pf->to_sk_daddr(&asoc->peer.primary_addr, sk);
+ sp->pf->to_sk_daddr(&asoc->peer.primary_addr, sock->sk);
sp->pf->copy_ip_options(sk, sock->sk);
/* Populate the fields of the newsk from the oldsk and migrate the
