diff options
| -rw-r--r-- | hw/9pfs/9p.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index 76c9247c77..b8c0b99358 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -2353,7 +2353,7 @@ static void coroutine_fn v9fs_flush(void *opaque) ssize_t err; int16_t tag; size_t offset = 7; - V9fsPDU *cancel_pdu; + V9fsPDU *cancel_pdu = NULL; V9fsPDU *pdu = opaque; V9fsState *s = pdu->s; @@ -2364,9 +2364,13 @@ static void coroutine_fn v9fs_flush(void *opaque) } trace_v9fs_flush(pdu->tag, pdu->id, tag); - QLIST_FOREACH(cancel_pdu, &s->active_list, next) { - if (cancel_pdu->tag == tag) { - break; + if (pdu->tag == tag) { + error_report("Warning: the guest sent a self-referencing 9P flush request"); + } else { + QLIST_FOREACH(cancel_pdu, &s->active_list, next) { + if (cancel_pdu->tag == tag) { + break; + } } } if (cancel_pdu) { |