NULL Pointer Dereference Affecting kernel-livepatch-5_14_21-150500_13_52-rt package, versions <1-150500.11.5.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.3% (22nd percentile)

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  • Snyk IDSNYK-SLES155-KERNELLIVEPATCH514211505001352RT-7720412
  • published20 Aug 2024
  • disclosed15 May 2024

Introduced: 15 May 2024

CVE-2024-27046  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-livepatch-5_14_21-150500_13_52-rt to version 1-150500.11.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150500_13_52-rt package and not the kernel-livepatch-5_14_21-150500_13_52-rt package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

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

nfp: flower: handle acti_netdevs allocation failure

The kmalloc_array() in nfp_fl_lag_do_work() will return null, if the physical memory has run out. As a result, if we dereference the acti_netdevs, the null pointer dereference bugs will happen.

This patch adds a check to judge whether allocation failure occurs. If it happens, the delayed work will be rescheduled and try again.

CVSS Base Scores

version 3.1