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.
Metrics
Affected Vendors & Products
References
History
Fri, 25 Apr 2025 16:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Weaknesses | CWE-99 |
Thu, 17 Apr 2025 14:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |
| |
Metrics |
threat_severity
|
cvssV3_1
|
Wed, 16 Apr 2025 14:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Description | 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. | |
Title | wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path | |
References |
|

Status: PUBLISHED
Assigner: Linux
Published: 2025-04-16T14:13:10.692Z
Updated: 2025-05-26T05:19:05.069Z
Reserved: 2024-12-29T08:45:45.824Z
Link: CVE-2025-22128

No data.

Status : Awaiting Analysis
Published: 2025-04-16T15:16:06.897
Modified: 2025-04-17T20:22:16.240
Link: CVE-2025-22128
