[libvirt] [PATCH] qemu: check if block I/O limits fit into long long
We can only pass values up to LLONG_MAX through JSON
and QEMU checks if the int64_t number is not negative
at startup since 1.5.0.
https://bugzilla.redhat.com/show_bug.cgi?id=974010
---
src/qemu/qemu_driver.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 3d9457f..b4b66aa 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -14099,6 +14099,13 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = ¶ms[i];
+ if (param->value.ul > LLONG_MAX) {
+ virReportError(VIR_ERR_OVERFLOW,
+ _("block I/O throttle limit value must"
+ " be less than %llu"), LLONG_MAX);
+ goto endjob;
+ }
+
if (STREQ(param->field, VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC)) {
info.total_bytes_sec = param->value.ul;
set_bytes = true;
--
1.8.1.5