CVE-2025-23129

Summary

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

Affected Software

VendorProductVersion RangeStatus
LinuxLinux39564b475ac5a589e6c22c43a08cbd283c295d2c < 80dc5a2ce5b75d648e08549617f5c555d07ae43caffected
LinuxLinux39564b475ac5a589e6c22c43a08cbd283c295d2c < 3fc42cfcc6e336f25dee79b34e57c4a63cd652a5affected
LinuxLinux39564b475ac5a589e6c22c43a08cbd283c295d2c < 68410c5bd381a81bcc92b808e7dc4e6b9ed25d11affected
LinuxLinuxe01b3400d641cb290742849331f0d22e1202538aaffected
LinuxLinux5a9f55efa9333e3edb4826d945cfdd8356f6e269affected
LinuxLinuxd412d0ef300f28d698648cc7c19147ab413251feaffected
LinuxLinux6.1.63 < 6.2affected
LinuxLinux6.5.12 < 6.6affected
LinuxLinux6.6.2 < 6.7affected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.12.59 <= 6.12.*unaffected
LinuxLinux6.14.2 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

References