Race Condition Affecting kernel-default-base package, versions <6.4.0-150600.23.22.1.150600.12.8.3


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.13% (33rd percentile)

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  • Snyk IDSNYK-SLES156-KERNELDEFAULTBASE-8076509
  • published24 Sept 2024
  • disclosed23 Sept 2024

Introduced: 23 Sep 2024

CVE-2024-41020  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-default-base to version 6.4.0-150600.23.22.1.150600.12.8.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-base package and not the kernel-default-base package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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

filelock: Fix fcntl/close race recovery compat path

When I wrote commit 3cad1bc01041 ("filelock: Remove locks reliably when fcntl/close race is detected"), I missed that there are two copies of the code I was patching: The normal version, and the version for 64-bit offsets on 32-bit kernels. Thanks to Greg KH for stumbling over this while doing the stable backport...

Apply exactly the same fix to the compat path for 32-bit kernels.

CVSS Base Scores

version 3.1