发件人: fengzhuoran <fengzhuoran@huawei.com>
发送时间: 2023年7月6日 20:38
收件人: zhangjianguo (A) <zhangjianguo18@huawei.com>
主题: Qemu asan test reported heap-use-after-free error when using qxl and spice
Qemu：qemu-6.2
Spice server: 0.14.3
GuestOS：kylinOS desktop（or other guestos with desktop）
vm xml：My VM xml is in the email attachment.
When we tested QEMU with asan, we found a heap-use-after-free error. The error message is as follows：
I think the reason for the problem is that the cursor pointer was not set to NULL when qemu call cursor_put. But I don't know what situation will trigger this error.
This error is difficult to reproduce by natural.
I can get the same error by calling cursor_put twice.
I don't know if this is a bug in QEMU and I am looking for help.
