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

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Summary

CVECVE-2026-46060
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:25 UTC
Updated2026-05-27 14:48:03 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 17fd7514ae68c541bf952876ce2005cb4a53f283 27f561bf894e46bdc2d6209c50884adad79d8277 git Not specified
CNA Linux Linux affected 17fd7514ae68c541bf952876ce2005cb4a53f283 7cd651f1357dcc477e6483c3a4706836b46bdc92 git Not specified
CNA Linux Linux affected 17fd7514ae68c541bf952876ce2005cb4a53f283 95aed2af87ec43fa7624cc81dd13d37824ad4972 git Not specified
CNA Linux Linux affected 6.16 Not specified
CNA Linux Linux unaffected 6.16 semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/95aed2af87ec43fa7624cc81dd13d37824ad4972 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/27f561bf894e46bdc2d6209c50884adad79d8277 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7cd651f1357dcc477e6483c3a4706836b46bdc92 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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