[libvirt] [PATCH] qemu: avoid null dereference on failed migration
From: Eric Blake <eblake(a)redhat.com>
* src/qemu/qemu_monitor_text.c
(qemuMonitorTextGetMigrationStatus): Check for failed strchr, to
silence a coverity warning.
Signed-off-by: Eric Blake <eblake(a)redhat.com>
---
src/qemu/qemu_monitor_text.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index 62ffcc6..e7b4b1f 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -989,6 +989,11 @@ int qemuMonitorTextGetMigrationStatus(qemuMonitorPtr mon,
if ((tmp = strstr(reply, MIGRATION_PREFIX)) != NULL) {
tmp += strlen(MIGRATION_PREFIX);
end = strchr(tmp, '\r');
+ if (end == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("unexpected migration status in %s"), reply);
+ goto cleanup;
+ }
*end = '\0';
if ((*status = qemuMonitorMigrationStatusTypeFromString(tmp)) < 0) {
--
1.6.6.1