CVE-2026-31389 (GCVE-0-2026-31389)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-04-27 14:02
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free (of driver resources) and unclocked register accesses.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
Version: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi.c"
          ],
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          ],
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          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.0"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "6.6.130",
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            },
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              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "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": "6.1.167",
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                  "vulnerable": true
                },
                {
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                },
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              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix use-after-free on controller registration failure\n\nMake sure to deregister from driver core also in the unlikely event that\nper-cpu statistics allocation fails during controller registration to\navoid use-after-free (of driver resources) and unclocked register\naccesses."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T14:02:41.755Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b"
        },
        {
          "url": "https://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051"
        },
        {
          "url": "https://git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9"
        }
      ],
      "title": "spi: fix use-after-free on controller registration failure",
      "x_generator": {
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31389",
    "datePublished": "2026-04-03T15:15:55.068Z",
    "dateReserved": "2026-03-09T15:48:24.084Z",
    "dateUpdated": "2026-04-27T14:02:41.755Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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