Vulnerability-Lookup

GHSA-9F4R-8QHP-55CQ

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-05-07 21:30

Details

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

dmaengine: idxd: Fix crash when the event log is disabled

If reporting errors to the event log is not supported by the hardware, and an error that causes Function Level Reset (FLR) is received, the driver will try to restore the event log even if it was not allocated.

Also, only try to free the event log if it was properly allocated.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31443"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:37Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix crash when the event log is disabled\n\nIf reporting errors to the event log is not supported by the hardware,\nand an error that causes Function Level Reset (FLR) is received, the\ndriver will try to restore the event log even if it was not allocated.\n\nAlso, only try to free the event log if it was properly allocated.",
  "id": "GHSA-9f4r-8qhp-55cq",
  "modified": "2026-05-07T21:30:22Z",
  "published": "2026-04-22T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31443"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e761079d653c25f838380cf7cef2730832110cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52d2edea0d63c935e82631e4b9e4a94eccf97b5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa0ffc6d3990ec35976308a068dc23178037e564"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-31443 (GCVE-0-2026-31443)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

Title

dmaengine: idxd: Fix crash when the event log is disabled

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix crash when the event log is disabled If reporting errors to the event log is not supported by the hardware, and an error that causes Function Level Reset (FLR) is received, the driver will try to restore the event log even if it was not allocated. Also, only try to free the event log if it was properly allocated.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/aa0ffc6d3990ec359…
https://git.kernel.org/stable/c/0e761079d653c25f8…
https://git.kernel.org/stable/c/52d2edea0d63c935e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6078a315aec15e0776fa90347cf4eba7478cdbd7 , < aa0ffc6d3990ec35976308a068dc23178037e564 (git) Affected: 6078a315aec15e0776fa90347cf4eba7478cdbd7 , < 0e761079d653c25f838380cf7cef2730832110cc (git) Affected: 6078a315aec15e0776fa90347cf4eba7478cdbd7 , < 52d2edea0d63c935e82631e4b9e4a94eccf97b5b (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/idxd/device.c",
            "drivers/dma/idxd/init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "versionType": "git"
            },
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              "version": "6078a315aec15e0776fa90347cf4eba7478cdbd7",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
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          "vendor": "Linux",
          "versions": [
            {
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            },
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              "version": "0",
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            },
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              "version": "6.18.21",
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            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.21",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix crash when the event log is disabled\n\nIf reporting errors to the event log is not supported by the hardware,\nand an error that causes Function Level Reset (FLR) is received, the\ndriver will try to restore the event log even if it was not allocated.\n\nAlso, only try to free the event log if it was properly allocated."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:08:48.361Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "dmaengine: idxd: Fix crash when the event log is disabled",
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    "datePublished": "2026-04-22T13:53:40.616Z",
    "dateReserved": "2026-03-09T15:48:24.090Z",
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}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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