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qemu
migration-colo-fix-use-after-free-of-loc.patch
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File migration-colo-fix-use-after-free-of-loc.patch of Package qemu
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Date: Tue, 24 Mar 2020 18:36:28 +0300 Subject: migration/colo: fix use after free of local_err Git-commit: 27d07fcfa70c3afa0664288cbce5334ed9595a3a local_err is used again in secondary_vm_do_failover() after replication_stop_all(), so we must zero it. Otherwise try to set non-NULL local_err will crash. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200324153630.11882-5-vsementsov@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Bruce Rogers <brogers@suse.com> --- migration/colo.c | 1 + 1 file changed, 1 insertion(+) diff --git a/migration/colo.c b/migration/colo.c index 2c88aa57a29307963a15fc017b1d..6d46800aa6a2617521a36cc0dc33 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -92,6 +92,7 @@ static void secondary_vm_do_failover(void) replication_stop_all(true, &local_err); if (local_err) { error_report_err(local_err); + local_err = NULL; } /* Notify all filters of all NIC to do checkpoint */
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