CVE-2026-46060

In the Linux kernel, the following vulnerability has been resolved:

crypto: qat - fix IRQ cleanup on 6xxx probe failure

When adf_dev_up() partially completes and then fails, the IRQ

handlers registered during adf_isr_resource_alloc() are not detached

before the MSI-X vectors are released.

Since the device is enabled with pcim_enable_device(), calling

pci_alloc_irq_vectors() internally registers pcim_msi_release() as a

devres action. On probe failure, devres runs pcim_msi_release() which

calls pci_free_irq_vectors(), tearing down the MSI-X vectors while IRQ

handlers (for example 'qat0-bundle0') are still attached. This causes

remove_proc_entry() warnings:

[ 22.163964] remove_proc_entry: removing non-empty directory 'irq/143', leaking at least 'qat0-bundle0'

Moving the devm_add_action_or_reset() before adf_dev_up() does not solve

the problem since devres runs in LIFO order and pcim_msi_release(),

registered later inside adf_dev_up(), would still fire before

adf_device_down().

Fix by calling adf_dev_down() explicitly when adf_dev_up() fails, to

properly free IRQ handlers before devres releases the MSI-X vectors.