CVE-2026-46060 (GCVE-0-2026-46060)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:57 – Updated: 2026-05-27 12:57
VLAI
Title
crypto: qat - fix IRQ cleanup on 6xxx probe failure
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 17fd7514ae68c541bf952876ce2005cb4a53f283 , < 27f561bf894e46bdc2d6209c50884adad79d8277 (git)
Affected: 17fd7514ae68c541bf952876ce2005cb4a53f283 , < 7cd651f1357dcc477e6483c3a4706836b46bdc92 (git)
Affected: 17fd7514ae68c541bf952876ce2005cb4a53f283 , < 95aed2af87ec43fa7624cc81dd13d37824ad4972 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/intel/qat/qat_6xxx/adf_drv.c"
          ],
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          "vendor": "Linux",
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              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
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      "cpeApplicability": [
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                  "vulnerable": true
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - fix IRQ cleanup on 6xxx probe failure\n\nWhen adf_dev_up() partially completes and then fails, the IRQ\nhandlers registered during adf_isr_resource_alloc() are not detached\nbefore the MSI-X vectors are released.\n\nSince the device is enabled with pcim_enable_device(), calling\npci_alloc_irq_vectors() internally registers pcim_msi_release() as a\ndevres action. On probe failure, devres runs pcim_msi_release() which\ncalls pci_free_irq_vectors(), tearing down the MSI-X vectors while IRQ\nhandlers (for example \u0027qat0-bundle0\u0027) are still attached. This causes\nremove_proc_entry() warnings:\n\n    [   22.163964] remove_proc_entry: removing non-empty directory \u0027irq/143\u0027, leaking at least \u0027qat0-bundle0\u0027\n\nMoving the devm_add_action_or_reset() before adf_dev_up() does not solve\nthe problem since devres runs in LIFO order and pcim_msi_release(),\nregistered later inside adf_dev_up(), would still fire before\nadf_device_down().\n\nFix by calling adf_dev_down() explicitly when adf_dev_up() fails, to\nproperly free IRQ handlers before devres releases the MSI-X vectors."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:57:20.991Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/27f561bf894e46bdc2d6209c50884adad79d8277"
        },
        {
          "url": "https://git.kernel.org/stable/c/7cd651f1357dcc477e6483c3a4706836b46bdc92"
        },
        {
          "url": "https://git.kernel.org/stable/c/95aed2af87ec43fa7624cc81dd13d37824ad4972"
        }
      ],
      "title": "crypto: qat - fix IRQ cleanup on 6xxx probe failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46060",
    "datePublished": "2026-05-27T12:57:20.991Z",
    "dateReserved": "2026-05-13T15:03:33.095Z",
    "dateUpdated": "2026-05-27T12:57:20.991Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-46060",
      "date": "2026-05-29",
      "epss": "0.00017",
      "percentile": "0.04336"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-46060\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-27T14:17:25.757\",\"lastModified\":\"2026-05-27T14:48:03.013\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: qat - fix IRQ cleanup on 6xxx probe failure\\n\\nWhen adf_dev_up() partially completes and then fails, the IRQ\\nhandlers registered during adf_isr_resource_alloc() are not detached\\nbefore the MSI-X vectors are released.\\n\\nSince the device is enabled with pcim_enable_device(), calling\\npci_alloc_irq_vectors() internally registers pcim_msi_release() as a\\ndevres action. On probe failure, devres runs pcim_msi_release() which\\ncalls pci_free_irq_vectors(), tearing down the MSI-X vectors while IRQ\\nhandlers (for example \u0027qat0-bundle0\u0027) are still attached. This causes\\nremove_proc_entry() warnings:\\n\\n    [   22.163964] remove_proc_entry: removing non-empty directory \u0027irq/143\u0027, leaking at least \u0027qat0-bundle0\u0027\\n\\nMoving the devm_add_action_or_reset() before adf_dev_up() does not solve\\nthe problem since devres runs in LIFO order and pcim_msi_release(),\\nregistered later inside adf_dev_up(), would still fire before\\nadf_device_down().\\n\\nFix by calling adf_dev_down() explicitly when adf_dev_up() fails, to\\nproperly free IRQ handlers before devres releases the MSI-X vectors.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/27f561bf894e46bdc2d6209c50884adad79d8277\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7cd651f1357dcc477e6483c3a4706836b46bdc92\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/95aed2af87ec43fa7624cc81dd13d37824ad4972\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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