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Date:      Mon, 3 May 2021 00:53:01 GMT
From:      Michael Tuexen <tuexen@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: 8b3d0f6439fa - main - sctp: improve address list scanning
Message-ID:  <202105030053.1430r1gn091723@gitrepo.freebsd.org>

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The branch main has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=8b3d0f6439fa27f0d37a9a7b9d27bbfdfdf487c4

commit 8b3d0f6439fa27f0d37a9a7b9d27bbfdfdf487c4
Author:     Michael Tuexen <tuexen@FreeBSD.org>
AuthorDate: 2021-05-03 00:50:05 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2021-05-03 00:50:05 +0000

    sctp: improve address list scanning
    
    If the alternate address has to be removed, force the stack to
    find a new one, if it is still needed.
    
    MFC after:      3 days
---
 sys/netinet/sctp_pcb.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/netinet/sctp_pcb.c b/sys/netinet/sctp_pcb.c
index f4264ab387f1..08acccbf9185 100644
--- a/sys/netinet/sctp_pcb.c
+++ b/sys/netinet/sctp_pcb.c
@@ -6562,11 +6562,15 @@ next_param:
 			/* remove and free it */
 			stcb->asoc.numnets--;
 			TAILQ_REMOVE(&stcb->asoc.nets, net, sctp_next);
-			sctp_free_remote_addr(net);
+			if (net == stcb->asoc.alternate) {
+				sctp_free_remote_addr(stcb->asoc.alternate);
+				stcb->asoc.alternate = NULL;
+			}
 			if (net == stcb->asoc.primary_destination) {
 				stcb->asoc.primary_destination = NULL;
 				sctp_select_primary_destination(stcb);
 			}
+			sctp_free_remote_addr(net);
 		}
 	}
 	if ((stcb->asoc.ecn_supported == 1) &&



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