CVE-2026-31441 (GCVE-0-2026-31441)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-09-08 08:47
VLAI
Title
dmaengine: idxd: Fix memory leak when a wq is reset
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix memory leak when a wq is reset idxd_wq_disable_cleanup() which is called from the reset path for a workqueue, sets the wq type to NONE, which for other parts of the driver mean that the wq is empty (all its resources were released). Only set the wq type to NONE after its resources are released.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658 (git)
Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < 54d77cc0c40ca2f894859dc7b3c52997574f1a2a (git)
Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < 39c1504e0e76bcfb93991fd94288a83e05d13b51 (git)
Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < a9e7815d38629bcf59d3005001f1f315424a58de (git)
Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < 0c3d3ac57e3c52b570b8c695903306bff07e04c8 (git)
Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478 (git)
Affected: 2a2df2bd10de44c3804661ed15157817c12d6291 (git)
Affected: 5.7.10 , < 5.8 (semver)
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Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.131 , ≤ 6.6.* (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
Create a notification for this product.
Show details on NVD website
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                "negate": false,
                "operator": "OR"
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            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix memory leak when a wq is reset\n\nidxd_wq_disable_cleanup() which is called from the reset path for a\nworkqueue, sets the wq type to NONE, which for other parts of the\ndriver mean that the wq is empty (all its resources were released).\n\nOnly set the wq type to NONE after its resources are released."
          }
        ],
        "id": "CVE-2026-31441",
        "lastModified": "2026-07-14T13:18:41.427",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
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        "published": "2026-04-22T14:16:37.530",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
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              "Patch"
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          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
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              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:25:21+00:00",
      "cve": "CVE-2026-31441",
      "id": "CVE-2026-31441",
      "initial_release_date": "2026-04-22T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dmaengine: idxd: Fix memory leak when a wq is reset",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31441.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-01T01:34:00Z",
      "cve": "CVE-2026-31441",
      "id": "CVE-2026-31441",
      "initial_release_date": "2026-04-23T01:26:25Z",
      "product_status:known_affected": "578",
      "product_status:known_not_affected": "176",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-31441",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-31441.json",
      "version": "11"
    }
  }
}



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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.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.