|
 |
ae23c9 |
From 699be60852400ad3459992a02c8477c08944ad09 Mon Sep 17 00:00:00 2001
|
|
|
ae23c9 |
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
|
|
|
ae23c9 |
Date: Wed, 1 Aug 2018 13:55:18 +0100
|
|
|
ae23c9 |
Subject: [PATCH] Migration+TLS: Fix crash due to double cleanup
|
|
|
ae23c9 |
MIME-Version: 1.0
|
|
|
ae23c9 |
Content-Type: text/plain; charset=UTF-8
|
|
|
ae23c9 |
Content-Transfer-Encoding: 8bit
|
|
|
ae23c9 |
|
|
|
ae23c9 |
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
|
|
|
ae23c9 |
Message-id: <20180801135522.11658-15-dgilbert@redhat.com>
|
|
|
ae23c9 |
Patchwork-id: 81569
|
|
|
ae23c9 |
O-Subject: [qemu-kvm RHEL8/virt212 PATCH 14/18] Migration+TLS: Fix crash due to double cleanup
|
|
|
ae23c9 |
Bugzilla: 1594384
|
|
|
ae23c9 |
RH-Acked-by: Peter Xu <peterx@redhat.com>
|
|
|
ae23c9 |
RH-Acked-by: John Snow <jsnow@redhat.com>
|
|
|
ae23c9 |
RH-Acked-by: Juan Quintela <quintela@redhat.com>
|
|
|
ae23c9 |
|
|
|
ae23c9 |
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
|
|
|
ae23c9 |
|
|
|
ae23c9 |
During a TLS connect we see:
|
|
|
ae23c9 |
migration_channel_connect calls
|
|
|
ae23c9 |
migration_tls_channel_connect
|
|
|
ae23c9 |
(calls after TLS setup)
|
|
|
ae23c9 |
migration_channel_connect
|
|
|
ae23c9 |
|
|
|
ae23c9 |
My previous error handling fix made migration_channel_connect
|
|
|
ae23c9 |
call migrate_fd_connect in all cases; unfortunately the above
|
|
|
ae23c9 |
means it gets called twice and crashes doing double cleanup.
|
|
|
ae23c9 |
|
|
|
ae23c9 |
Fixes: 688a3dcba98
|
|
|
ae23c9 |
|
|
|
ae23c9 |
Reported-by: Peter Krempa <pkrempa@redhat.com>
|
|
|
ae23c9 |
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
|
|
|
ae23c9 |
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
|
|
|
ae23c9 |
Message-Id: <20180430185943.35714-1-dgilbert@redhat.com>
|
|
|
ae23c9 |
Signed-off-by: Juan Quintela <quintela@redhat.com>
|
|
|
ae23c9 |
(cherry picked from commit 8b7bf2badac25c0a52aff1b181ad75fdb304dd0c)
|
|
|
ae23c9 |
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
|
|
|
ae23c9 |
---
|
|
|
ae23c9 |
migration/channel.c | 9 +++++++++
|
|
|
ae23c9 |
1 file changed, 9 insertions(+)
|
|
|
ae23c9 |
|
|
|
ae23c9 |
diff --git a/migration/channel.c b/migration/channel.c
|
|
|
ae23c9 |
index c5eaf0f..7a32b5a 100644
|
|
|
ae23c9 |
--- a/migration/channel.c
|
|
|
ae23c9 |
+++ b/migration/channel.c
|
|
|
ae23c9 |
@@ -71,6 +71,15 @@ void migration_channel_connect(MigrationState *s,
|
|
|
ae23c9 |
!object_dynamic_cast(OBJECT(ioc),
|
|
|
ae23c9 |
TYPE_QIO_CHANNEL_TLS)) {
|
|
|
ae23c9 |
migration_tls_channel_connect(s, ioc, hostname, &error);
|
|
|
ae23c9 |
+
|
|
|
ae23c9 |
+ if (!error) {
|
|
|
ae23c9 |
+ /* tls_channel_connect will call back to this
|
|
|
ae23c9 |
+ * function after the TLS handshake,
|
|
|
ae23c9 |
+ * so we mustn't call migrate_fd_connect until then
|
|
|
ae23c9 |
+ */
|
|
|
ae23c9 |
+
|
|
|
ae23c9 |
+ return;
|
|
|
ae23c9 |
+ }
|
|
|
ae23c9 |
} else {
|
|
|
ae23c9 |
QEMUFile *f = qemu_fopen_channel_output(ioc);
|
|
|
ae23c9 |
|
|
|
ae23c9 |
--
|
|
|
ae23c9 |
1.8.3.1
|
|
|
ae23c9 |
|