qemu/hmp-vnc-Fix-info-vnc-list-leak.patch

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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 23 Mar 2020 12:08:22 +0000
Subject: hmp/vnc: Fix info vnc list leak
Git-commit: d4ff109373ce871928c7e9ef648973eba642b484
We're iterating the list, and then freeing the iteration pointer rather
than the list head.
Fixes: 0a9667ecdb6d ("hmp: Update info vnc")
Reported-by: Coverity (CID 1421932)
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200323120822.51266-1-dgilbert@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
monitor/hmp-cmds.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index b2551c16d129291068ce64b5f1fd..2fdc84ec995449b5139a89575e18 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -729,10 +729,11 @@ static void hmp_info_vnc_servers(Monitor *mon, VncServerInfo2List *server)
void hmp_info_vnc(Monitor *mon, const QDict *qdict)
{
- VncInfo2List *info2l;
+ VncInfo2List *info2l, *info2l_head;
Error *err = NULL;
info2l = qmp_query_vnc_servers(&err);
+ info2l_head = info2l;
if (err) {
hmp_handle_error(mon, &err);
return;
@@ -761,7 +762,7 @@ void hmp_info_vnc(Monitor *mon, const QDict *qdict)
info2l = info2l->next;
}
- qapi_free_VncInfo2List(info2l);
+ qapi_free_VncInfo2List(info2l_head);
}
#endif