CVE-2026-23180 Affecting linux-6.1 package, versions <6.1.164-1~deb11u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-DEBIAN11-LINUX61-15656262
  • published16 Mar 2026
  • disclosed14 Feb 2026

Introduced: 14 Feb 2026

CVE-2026-23180  (opens in a new tab)

How to fix?

Upgrade Debian:11 linux-6.1 to version 6.1.164-1~deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-6.1 package and not the linux-6.1 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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

dpaa2-switch: add bounds check for if_id in IRQ handler

The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without validation. Since if_id can be any 16-bit value (0-65535) but the ports array is only allocated with sw_attr.num_ifs elements, this can lead to an out-of-bounds read potentially.

Add a bounds check before accessing the array, consistent with the existing validation in dpaa2_switch_rx().

CVSS Base Scores

version 3.1