[PATCH 4/4] qemu: Init ext devices paths on reconnect

[Michal Privoznik]

Paths for external devices (well, so far only vTPM) are not
stored in the status XML. Therefore, we need to regenerate them
after we've been restarted and reconnecting to a running domain.
Otherwise these will remain NULL which may later lead to a NULL
dereference.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2150760
Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/qemu/qemu_process.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 19b9242623..c542be5036 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8896,6 +8896,9 @@ qemuProcessReconnect(void *opaque)
     if (qemuDomainMasterKeyReadFile(priv) < 0)
         goto error;
 
+    if (qemuExtDevicesInitPaths(driver, obj->def) < 0)
+        goto error;
+
     /* If we are connecting to a guest started by old libvirt there is no
      * allowReboot in status XML and we need to initialize it. */
     qemuProcessPrepareAllowReboot(obj);
-- 
2.37.4