A segmentation fault was triggered when i try to abort a postcopy + rdma
migration.
since rdma_ack_cm_event releases a uninitialized cm_event in thise case.
like below:
2496 ret = rdma_get_cm_event(rdma->channel, &cm_event);
2497 if (ret) {
2498 perror("rdma_get_cm_event after rdma_connect");
2499 ERROR(errp, "connecting to destination!");
2500 rdma_ack_cm_event(cm_event); <<<< cause segmentation fault
2501 goto err_rdma_source_connect;
2502 }
Signed-off-by: Li Zhijian <[email protected]>
---
migration/rdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/migration/rdma.c b/migration/rdma.c
index 00eac34232..2dadb62aed 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -2466,7 +2466,7 @@ static int qemu_rdma_connect(RDMAContext *rdma, Error
**errp)
.private_data = &cap,
.private_data_len = sizeof(cap),
};
- struct rdma_cm_event *cm_event;
+ struct rdma_cm_event *cm_event = NULL;
int ret;
/*
--
2.30.2
