[libvirt] [PATCH] qemu: Check sev capability pointer before using it
https://bugzilla.redhat.com/show_bug.cgi?id=1612009
Check sev capability pointer in function qemuGetSEVInfoToParams to avoid
null pointer dereferences.
Signed-off-by: Han Han <hhan(a)redhat.com>
---
src/qemu/qemu_driver.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index fb0d4a8c7a..3daaef586f 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -21452,6 +21452,12 @@ qemuGetSEVInfoToParams(virQEMUCapsPtr qemuCaps,
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
+ if (!sev) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+ _("SEV is not supported in this guest"));
+ return -1;
+ }
+
if (virTypedParamsAddString(&sevParams, &n, &maxpar,
VIR_NODE_SEV_PDH, sev->pdh) < 0)
return -1;
--
2.18.0