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qemu: Fix job usage in qemuDomainBlockJobImpl

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CVE-2013-6458

Every API that is going to begin a job should do that before fetching
data from vm->def.

(cherry picked from commit f93d2caa07)
This commit is contained in:
Jiri Denemark 2013-12-20 15:04:09 +01:00 committed by Eric Blake
parent 6eae1538c1
commit 8bdc22d281
1 changed files with 11 additions and 11 deletions
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22
src/qemu/qemu_driver.c
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@ -13341,16 +13341,25 @@ qemuDomainBlockJobImpl(virDomainPtr dom, const char *path, const char *base,
goto cleanup; goto cleanup;
} }
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain is not running"));
goto endjob;
}
device = qemuDiskPathToAlias(vm, path, &idx); device = qemuDiskPathToAlias(vm, path, &idx);
if (!device) if (!device)
goto cleanup; goto endjob;
disk = vm->def->disks[idx]; disk = vm->def->disks[idx];
if (mode == BLOCK_JOB_PULL && disk->mirror) { if (mode == BLOCK_JOB_PULL && disk->mirror) {
virReportError(VIR_ERR_BLOCK_COPY_ACTIVE, virReportError(VIR_ERR_BLOCK_COPY_ACTIVE,
_("disk '%s' already in active block copy job"), _("disk '%s' already in active block copy job"),
disk->dst); disk->dst);
goto cleanup; goto endjob;
} }
if (mode == BLOCK_JOB_ABORT && if (mode == BLOCK_JOB_ABORT &&
(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT) && (flags & VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT) &&
@ -13358,15 +13367,6 @@ qemuDomainBlockJobImpl(virDomainPtr dom, const char *path, const char *base,
virReportError(VIR_ERR_OPERATION_INVALID, virReportError(VIR_ERR_OPERATION_INVALID,
_("pivot of disk '%s' requires an active copy job"), _("pivot of disk '%s' requires an active copy job"),
disk->dst); disk->dst);
goto cleanup;
}
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain is not running"));
goto endjob; goto endjob;
} }