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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2020-03-24 18:36:29 +0300 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2020-03-25 12:31:38 +0000 |
| commit | b4a1733c5e6827c72b0dcfa295e07ef7b1ebccff (patch) | |
| tree | ecef70efe0d6412fdadd790bdeb404e7b5bef432 /migration/ram.c | |
| parent | 27d07fcfa70c3afa0664288cbce5334ed9595a3a (diff) | |
| download | focaccia-qemu-b4a1733c5e6827c72b0dcfa295e07ef7b1ebccff.tar.gz focaccia-qemu-b4a1733c5e6827c72b0dcfa295e07ef7b1ebccff.zip | |
migration/ram: fix use after free of local_err
local_err is used again in migration_bitmap_sync_precopy() after precopy_notify(), 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: <20200324153630.11882-6-vsementsov@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/ram.c')
| -rw-r--r-- | migration/ram.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/migration/ram.c b/migration/ram.c index c12cfdbe26..04f13feb2e 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -980,6 +980,7 @@ static void migration_bitmap_sync_precopy(RAMState *rs) */ if (precopy_notify(PRECOPY_NOTIFY_BEFORE_BITMAP_SYNC, &local_err)) { error_report_err(local_err); + local_err = NULL; } migration_bitmap_sync(rs); |