CVE-2025-23129

MEDIUM

Linux Kernel - IRQ Affinity Hint Handling Issue

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Clear affinity hint before calling ath11k_pcic_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 ath11k_pci_alloc_msi(). This does no harm unless one of the functions requesting the IRQ fails and attempt to free the IRQ. This results in the below warning: WARNING: CPU: 7 PID: 349 at kernel/irq/manage.c:1929 free_irq+0x278/0x29c Call trace: free_irq+0x278/0x29c ath11k_pcic_free_irq+0x70/0x10c [ath11k] ath11k_pci_probe+0x800/0x820 [ath11k_pci] local_pci_probe+0x40/0xbc The warning is due to not clearing the affinity hint before freeing the IRQs. So to fix this issue, clear the IRQ affinity hint before calling ath11k_pcic_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. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-05266-QCAHSTSWPLZ_V2_TO_X86-1

Scores

CVSS v3 5.5
EPSS 0.0018
EPSS Percentile 7.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (17)
linux/Kernel 6.13.0 - 6.14.2linux
linux/Kernel 6.7.0 - 6.12.59linux
Linux/Linux < 6.7
Linux/Linux 39564b475ac5a589e6c22c43a08cbd283c295d2c - 3fc42cfcc6e336f25dee79b34e57c4a63cd652a5
Linux/Linux 39564b475ac5a589e6c22c43a08cbd283c295d2c - 68410c5bd381a81bcc92b808e7dc4e6b9ed25d11
Linux/Linux 39564b475ac5a589e6c22c43a08cbd283c295d2c - 80dc5a2ce5b75d648e08549617f5c555d07ae43c
Linux/Linux 5a9f55efa9333e3edb4826d945cfdd8356f6e269
Linux/Linux 6.1.63 - 6.2
Linux/Linux 6.12.59 - 6.12.*
Linux/Linux 6.14.2 - 6.14.*
... and 7 more
Published Apr 16, 2025
Tracked Since Feb 18, 2026