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spapr: fix possible Negative array index read

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fix CID 1351391.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1456998223-12356-6-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Gonglei 2016-03-03 17:43:42 +08:00 • committed by Paolo Bonzini
parent dacca04c8d
commit 1a5512bb7e
1 changed files with 4 additions and 0 deletions
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4
hw/ppc/spapr.c
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@ -2208,6 +2208,10 @@ static void spapr_machine_device_plug(HotplugHandler *hotplug_dev,
if (*errp) { if (*errp) {
return; return;
} }
if (node < 0 || node >= MAX_NODES) {
error_setg(errp, "Invaild node %d", node);
return;
}
/* /*
* Currently PowerPC kernel doesn't allow hot-adding memory to * Currently PowerPC kernel doesn't allow hot-adding memory to