CVE-2025-22128None▾ Sunlit

wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path If a shared IRQ is used by the driver due to platform limitation, then the IRQ aff…

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Apr 16, 2025

Updated

Nov 5, 2026

CVSS

—

Vendor

Linux

Product

Linux

CWE

—

Depth score

3 · Minimal

EPSS

0.19% · p8

Platforms

—

Source

CVEORG

Vector

—

CISA SSVC

decided 2026-11-05

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Nov 5.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 568 days

Apr 16, 2025Published
Disclosed via CVEORG
Nov 5, 2026Record revised
Last analysed / modified upstream
Nov 5, 2026EPSS first tracked
0.2%

Linux #cve.org

Affected

Linux >= a3012f206d07fa62b5c2e384cbc3a81a4dbba3c9 < a69a594794fcad96d4cfce12aab6c5014a12b4c8
Linux >= a3012f206d07fa62b5c2e384cbc3a81a4dbba3c9 < 35b33ba76765ce9e72949d957f3cf1feafd2955c
Linux >= a3012f206d07fa62b5c2e384cbc3a81a4dbba3c9 < b43b1e2c52db77c872bd60d30cdcc72c47df70c7
Linux 6.8

Full technical detail▾

Overview

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

wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path

If a shared IRQ is used by the driver due to platform limitation, then the IRQ affinity hint is set right after the allocation of IRQ vectors in ath12k_pci_msi_alloc(). This does no harm unless one of the functions requesting the IRQ fails and attempt to free the IRQ.

This may end up with a warning from the IRQ core that is expecting the affinity hint to be cleared before freeing the IRQ:

kernel/irq/manage.c:

/* make sure affinity_hint is cleaned up */
if (WARN_ON_ONCE(desc->affinity_hint))
	desc->affinity_hint = NULL;

So to fix this issue, clear the IRQ affinity hint before calling ath12k_pci_free_irq() in the error path. The affinity will be cleared once again further down the error path due to code organization, but that does no harm.

Affected

Linux >= a3012f206d07fa62b5c2e384cbc3a81a4dbba3c9 < a69a594794fcad96d4cfce12aab6c5014a12b4c8
Linux >= a3012f206d07fa62b5c2e384cbc3a81a4dbba3c9 < 35b33ba76765ce9e72949d957f3cf1feafd2955c
Linux >= a3012f206d07fa62b5c2e384cbc3a81a4dbba3c9 < b43b1e2c52db77c872bd60d30cdcc72c47df70c7
Linux 6.8

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org

wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

Overview

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

wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path

This may end up with a warning from the IRQ core that is expecting the affinity hint to be cleared before freeing the IRQ:

kernel/irq/manage.c:

/* make sure affinity_hint is cleaned up */ if (WARN_ON_ONCE(desc->affinity_hint)) desc->affinity_hint = NULL;