CVE-2025-38530 Affecting kernel-source package, versions <6.4.0-150600.23.70.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (9th percentile)

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  • Snyk IDSNYK-SLES156-KERNELSOURCE-13025545
  • published24 Sept 2025
  • disclosed23 Sept 2025

Introduced: 23 Sep 2025

NewCVE-2025-38530  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-source to version 6.4.0-150600.23.70.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source 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:

comedi: pcl812: Fix bit shift out of bounds

When checking for a supported IRQ number, the following test is used:

if ((1 &lt;&lt; it-&gt;options[1]) &amp; board-&gt;irq_bits) {

However, it-&gt;options[i] is an unchecked int value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring it-&gt;options[1] to be within bounds before proceeding with the original test. Valid it-&gt;options[1] values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts.

CVSS Base Scores

version 3.1