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qemu: fix memory leak in qemuDomainSaveInternal()

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Use g_autoptr to free the temporary virDomainDef object created by
qemuDomainSaveInternal() when xmlin is non-NULL. Leak was added in
commit 0ea479f8f6, first appearing in libvirt 0.9.4 in August 2011.

Signed-off-by: Zheng Chuan <zhengchuan@huawei.com>
Reviewed-by: Laine Stump <laine@redhat.com>
This commit is contained in:
Zheng Chuan 2020-07-29 11:42:49 +08:00 committed by Laine Stump
parent 8a4f807536
commit ffa7fab440
1 changed files with 2 additions and 4 deletions
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6
src/qemu/qemu_driver.c
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@ -3356,7 +3356,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
* is NULL or whether it was the live xml of the domain moments
* before. */
if (xmlin) {
virDomainDefPtr def = NULL;
g_autoptr(virDomainDef) def = NULL;
if (!(def = virDomainDefParseString(xmlin, driver->xmlopt,
priv->qemuCaps,
@ -3364,10 +3364,8 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE))) {
goto endjob;
}
if (!qemuDomainCheckABIStability(driver, vm, def)) {
virDomainDefFree(def);
if (!qemuDomainCheckABIStability(driver, vm, def))
goto endjob;
}
xml = qemuDomainDefFormatLive(driver, priv->qemuCaps, def, NULL, true, true);
} else {
xml = qemuDomainDefFormatLive(driver, priv->qemuCaps, vm->def,