7:59 a.m.
Ján Tomko (3):
qemu: chardev: avoid impossible overflow
util: json: check return value of virJSONValueFromJsonC
ch: check return value of virJSONValueArrayAppend
src/ch/ch_monitor.c | 3 ++-
src/qemu/qemu_chardev.c | 2 +-
src/util/virjson.c | 5 +++++
3 files changed, 8 insertions(+), 2 deletions(-)
--
2.47.0
7:59 a.m.
New subject: [libvirt PATCH 1/3] qemu: chardev: avoid impossible overflow
In the rare case where int and long long are not the same size,
the multiplication of an int variable and an int constant might
overflow. Cast the constant to long long to avoid this.
Signed-off-by: Ján Tomko <jtomko(a)redhat.com>
Fixes: baa4edfb79d5ee861a08b5ec11416c5c156d8cd2
---
src/qemu/qemu_chardev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_chardev.c b/src/qemu/qemu_chardev.c
index b6828b6752..6b29744975 100644
--- a/src/qemu/qemu_chardev.c
+++ b/src/qemu/qemu_chardev.c
@@ -247,7 +247,7 @@ qemuChardevGetBackendProps(const virDomainChrSourceDef *chr,
if (reconnect != -1 &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_RECONNECT_MILISECONDS)) {
- reconnect_ms = reconnect * 1000;
+ reconnect_ms = reconnect * (long long) 1000;
reconnect = -1;
}
--
2.47.0
7:59 a.m.
New subject: [libvirt PATCH 2/3] util: json: check return value of virJSONValueFromJsonC
In virJSONValueFromJsonC, the return value of virJSONValueFromJsonC
was not checked in one case.
Signed-off-by: Ján Tomko <jtomko(a)redhat.com>
---
src/util/virjson.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/util/virjson.c b/src/util/virjson.c
index 18a4585e7b..a799707c16 100644
--- a/src/util/virjson.c
+++ b/src/util/virjson.c
@@ -1437,6 +1437,11 @@ virJSONValueFromJsonC(json_object *jobj)
cur = virJSONValueFromJsonC(val);
+ if (!cur) {
+ g_free(ret);
+ return NULL;
+ }
+
virJSONValueArrayAppend(ret, &cur);
}
break;
--
2.47.0
7:59 a.m.
New subject: [libvirt PATCH 3/3] ch: check return value of virJSONValueArrayAppend
It only errors out when presented with a non-array, but we do check
it everywhere else.
Signed-off-by: Ján Tomko <jtomko(a)redhat.com>
---
src/ch/ch_monitor.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/ch/ch_monitor.c b/src/ch/ch_monitor.c
index 3e49902791..ccd04cfbd1 100644
--- a/src/ch/ch_monitor.c
+++ b/src/ch/ch_monitor.c
@@ -1002,7 +1002,8 @@ virCHMonitorBuildRestoreJson(virDomainDef *vmdef,
return -1;
if (virJSONValueObjectAppendNumberInt(net_json, "num_fds",
vmdef->nets[i]->driver.virtio.queues))
return -1;
- virJSONValueArrayAppend(nets, &net_json);
+ if (virJSONValueArrayAppend(nets, &net_json) < 0)
+ return -1;
}
if (virJSONValueObjectAppend(restore_json, "net_fds", &nets))
return -1;
--
2.47.0
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participants (2)
-
Ján Tomko -
Peter Krempa