Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-cross-headers  (opens in a new tab)


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  • Snyk IDSNYK-CENTOS9-KERNELCROSSHEADERS-7280876
  • published20 Jun 2024
  • disclosed19 Jun 2024

Introduced: 19 Jun 2024

CVE-2021-47596  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by Centos.

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.