Double Free Affecting kernel-rt-modules package, versions <0:5.14.0-162.22.2.rt21.186.el9_1


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.46% (36th percentile)

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  • Snyk IDSNYK-ROCKY9-KERNELRTMODULES-5415774
  • published7 Apr 2023
  • disclosed30 Mar 2023

Introduced: 30 Mar 2023

CVE-2022-4744  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 kernel-rt-modules to version 0:5.14.0-162.22.2.rt21.186.el9_1 or higher.
This issue was patched in RLSA-2023:1469.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules package and not the kernel-rt-modules package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS Base Scores

version 3.1