[libvirt] [PATCH v2 1/2] util: Check if kernel-provided info is consistent with itself
Just in case someone re-mounted /sys/fs/resctrl with different mount
options (cdp), add a check here.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540780
Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com>
---
src/util/virresctrl.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c
index ef388757a704..6860e86e649d 100644
--- a/src/util/virresctrl.c
+++ b/src/util/virresctrl.c
@@ -941,6 +941,17 @@ virResctrlAllocParseProcessCache(virResctrlInfoPtr resctrl,
if (!mask)
return -1;
+ if (!resctrl ||
+ level >= resctrl->nlevels ||
+ !resctrl->levels[level] ||
+ !resctrl->levels[level]->types[type]) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Missing or inconsistent resctrl info for "
+ "level '%ud' type '%s'"),
+ level, virCacheTypeToString(type));
+ goto cleanup;
+ }
+
if (virBitmapShrink(mask, resctrl->levels[level]->types[type]->bits) <
0)
goto cleanup;
--
2.16.1