fkie_cve-2025-22128
Vulnerability from fkie_nvd
Published
2025-04-16 15:16
Modified
2025-11-03 18:25
Severity ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path\n\nIf a shared IRQ is used by the driver due to platform limitation, then the\nIRQ affinity hint is set right after the allocation of IRQ vectors in\nath12k_pci_msi_alloc(). This does no harm unless one of the functions\nrequesting the IRQ fails and attempt to free the IRQ.\n\nThis may end up with a warning from the IRQ core that is expecting the\naffinity hint to be cleared before freeing the IRQ:\n\nkernel/irq/manage.c:\n\n\t/* make sure affinity_hint is cleaned up */\n\tif (WARN_ON_ONCE(desc-\u003eaffinity_hint))\n\t\tdesc-\u003eaffinity_hint = NULL;\n\nSo to fix this issue, clear the IRQ affinity hint before calling\nath12k_pci_free_irq() in the error path. The affinity will be cleared once\nagain further down the error path due to code organization, but that does\nno harm."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: ath12k: Borrar la sugerencia de afinidad antes de llamar a ath12k_pci_free_irq() en la ruta de error Si el controlador usa una IRQ compartida debido a una limitaci\u00f3n de la plataforma, la sugerencia de afinidad de IRQ se establece justo despu\u00e9s de la asignaci\u00f3n de vectores de IRQ en ath12k_pci_msi_alloc(). Esto no causa da\u00f1o a menos que una de las funciones que solicita la IRQ falle e intente liberarla. Esto puede terminar con una advertencia del n\u00facleo de IRQ que espera que se borre la sugerencia de afinidad antes de liberar la IRQ: kernel/irq/manage.c: /* aseg\u00farese de que affinity_hint se limpie */ if (WARN_ON_ONCE(desc-\u0026gt;affinity_hint)) desc-\u0026gt;affinity_hint = NULL; Para solucionar este problema, borre la indicaci\u00f3n de afinidad de IRQ antes de llamar a ath12k_pci_free_irq() en la ruta de error. La afinidad se borrar\u00e1 m\u00e1s adelante en la ruta de error debido a la organizaci\u00f3n del c\u00f3digo, pero esto no perjudica."
}
],
"id": "CVE-2025-22128",
"lastModified": "2025-11-03T18:25:01.927",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
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},
"published": "2025-04-16T15:16:06.897",
"references": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "NVD-CWE-noinfo"
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"source": "nvd@nist.gov",
"type": "Primary"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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