CVE-2026-31443 (GCVE-0-2026-31443)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-05-11 22:08
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6078a315aec15e0776fa90347cf4eba7478cdbd7
Version: 6078a315aec15e0776fa90347cf4eba7478cdbd7
Version: 6078a315aec15e0776fa90347cf4eba7478cdbd7
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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": [
            {
              "lessThan": "aa0ffc6d3990ec35976308a068dc23178037e564",
              "status": "affected",
              "version": "6078a315aec15e0776fa90347cf4eba7478cdbd7",
              "versionType": "git"
            },
            {
              "lessThan": "0e761079d653c25f838380cf7cef2730832110cc",
              "status": "affected",
              "version": "6078a315aec15e0776fa90347cf4eba7478cdbd7",
              "versionType": "git"
            },
            {
              "lessThan": "52d2edea0d63c935e82631e4b9e4a94eccf97b5b",
              "status": "affected",
              "version": "6078a315aec15e0776fa90347cf4eba7478cdbd7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "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
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "6.14",
                  "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",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aa0ffc6d3990ec35976308a068dc23178037e564"
        },
        {
          "url": "https://git.kernel.org/stable/c/0e761079d653c25f838380cf7cef2730832110cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/52d2edea0d63c935e82631e4b9e4a94eccf97b5b"
        }
      ],
      "title": "dmaengine: idxd: Fix crash when the event log is disabled",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31443",
    "datePublished": "2026-04-22T13:53:40.616Z",
    "dateReserved": "2026-03-09T15:48:24.090Z",
    "dateUpdated": "2026-05-11T22:08:48.361Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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