• CVE-2021-47596

发布时间: 2024年7月17日

修改时间: 2024年11月30日

概要

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg Currently, the hns3_remove function firstly uninstall client instance, and then uninstall acceletion engine device. The netdevice is freed in client instance uninstall process, but acceletion engine device uninstall process still use it to trace runtime information. This causes a use after free problem. So fixes it by check the instance register state to avoid use after free.

CVSS v3 指标

NVD openEuler
Confidentiality High Low
Attack Vector Local Local
CVSS评分 7.8 3.9
Attack Complexity Low High
Privileges Required Low High
Scope Unchanged Unchanged
Integrity High Low
User Interaction None None
Availability High Low

安全公告

公告名 概要 发布时间
KylinSec-SA-2024-3184 In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg Currently, the hns3_remove function firstly uninstall client instance, and then uninstall acceletion engine device. The netdevice is freed in client instance uninstall process, but acceletion engine device uninstall process still use it to trace runtime information. This causes a use after free problem. So fixes it by check the instance register state to avoid use after free. 2024年7月17日

影响产品

产品 状态
KY3.4-5A kernel Unaffected
KY3.5.2 kernel Unaffected
V6 kernel Unaffected