Access of Uninitialized Pointer Affecting kernel-rt package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELRT-7587606
  • published5 Aug 2024
  • disclosed30 Jul 2024

Introduced: 30 Jul 2024

CVE-2024-42116  (opens in a new tab)
CWE-824  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 kernel-rt.

NVD Description

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

In the Linux kernel, the following vulnerability has been resolved:

igc: fix a log entry using uninitialized netdev

During successful probe, igc logs this:

[ 5.133667] igc 0000:01:00.0 (unnamed net_device) (uninitialized): PHC added ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The reason is that igc_ptp_init() is called very early, even before register_netdev() has been called. So the netdev_info() call works on a partially uninitialized netdev.

Fix this by calling igc_ptp_init() after register_netdev(), right after the media autosense check, just as in igb. Add a comment, just as in igb.

Now the log message is fine:

[ 5.200987] igc 0000:01:00.0 eth0: PHC added

CVSS Scores

version 3.1