Patch "mptcp: add validity check for sending RM_ADDR" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    mptcp: add validity check for sending RM_ADDR

to the 6.6-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:
     mptcp-add-validity-check-for-sending-rm_addr.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 8df220b29282e8b450ea57be62e1eccd4996837c Mon Sep 17 00:00:00 2001
From: Geliang Tang <geliang.tang@xxxxxxxx>
Date: Tue, 14 Nov 2023 00:16:15 +0100
Subject: mptcp: add validity check for sending RM_ADDR

From: Geliang Tang <geliang.tang@xxxxxxxx>

commit 8df220b29282e8b450ea57be62e1eccd4996837c upstream.

This patch adds the validity check for sending RM_ADDRs for userspace PM
in mptcp_pm_remove_addrs(), only send a RM_ADDR when the address is in the
anno_list or conn_list.

Fixes: 8b1c94da1e48 ("mptcp: only send RM_ADDR in nl_cmd_remove")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Geliang Tang <geliang.tang@xxxxxxxx>
Reviewed-by: Mat Martineau <martineau@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts <matttbe@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231114-upstream-net-20231113-mptcp-misc-fixes-6-7-rc2-v1-3-7b9cd6a7b7f4@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/mptcp/pm_netlink.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1538,8 +1538,9 @@ void mptcp_pm_remove_addrs(struct mptcp_
 	struct mptcp_pm_addr_entry *entry;
 
 	list_for_each_entry(entry, rm_list, list) {
-		remove_anno_list_by_saddr(msk, &entry->addr);
-		if (alist.nr < MPTCP_RM_IDS_MAX)
+		if ((remove_anno_list_by_saddr(msk, &entry->addr) ||
+		     lookup_subflow_by_saddr(&msk->conn_list, &entry->addr)) &&
+		    alist.nr < MPTCP_RM_IDS_MAX)
 			alist.ids[alist.nr++] = entry->addr.id;
 	}
 


Patches currently in stable-queue which might be from geliang.tang@xxxxxxxx are

queue-6.6/mptcp-add-validity-check-for-sending-rm_addr.patch



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