CVE-2025-23155 Affecting linux-virt package, versions <6.12.37-r0


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.03% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRT-13849584
  • published7 Nov 2025
  • disclosed1 May 2025

Introduced: 1 May 2025

CVE-2025-23155  (opens in a new tab)

How to fix?

Upgrade Minimos:latest linux-virt to version 6.12.37-r0 or higher.

NVD Description

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

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

net: stmmac: Fix accessing freed irq affinity_hint

In stmmac_request_irq_multi_msi(), a pointer to the stack variable cpu_mask is passed to irq_set_affinity_hint(). This value is stored in irq_desc->affinity_hint, but once stmmac_request_irq_multi_msi() returns, the pointer becomes dangling.

The affinity_hint is exposed via procfs with S_IRUGO permissions, allowing any unprivileged process to read it. Accessing this stale pointer can lead to:

  • a kernel oops or panic if the referenced memory has been released and unmapped, or
  • leakage of kernel data into userspace if the memory is re-used for other purposes.

All platforms that use stmmac with PCI MSI (Intel, Loongson, etc) are affected.

CVSS Base Scores

version 3.1