Oracle Linux: CVE-2021-47596: ELSA-2024-4583: kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2021-47596: ELSA-2024-4583:kernel security update (IMPORTANT) (Multiple Advisories)

Severity

6

CVSS

(AV:L/AC:L/Au:S/C:C/I:P/A:C)

Published

06/19/2024

Created

07/22/2024

Added

08/16/2024

Modified

01/07/2025

Description

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.

Solution(s)

• oracle-linux-upgrade-kernel

References

• https://attackerkb.com/topics/cve-2021-47596
• CVE - 2021-47596
• ELSA-2024-4583