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CVE-2025-23129 – “Qualcomm Atheros WiFi Kernel IRQ Affinity Hint Clearing Vulnerability”

The following table lists the changes that have been made to the
CVE-2025-23129 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 16, 2025

    Action Type Old Value New Value
    Added 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
    Added Reference https://git.kernel.org/stable/c/3fc42cfcc6e336f25dee79b34e57c4a63cd652a5
    Added Reference https://git.kernel.org/stable/c/68410c5bd381a81bcc92b808e7dc4e6b9ed25d11
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