spi: use generic driver_override infrastructure

{
  "id": "37e2170236bdca5a9e3a07bb6ed829905dc2eefe08a5c7f10e46339c00cfb6bd",
  "url": "https://osv.dev/vulnerability/CVE-2026-31487",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "spi: use generic driver_override infrastructure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: spi: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1] Also note that we do not enable the driver_override feature of struct bus_type, as SPI - in contrast to most other buses - passes \"\" to sysfs_emit() when the driver_override pointer is NULL. Thus, printing \"\\n\" instead of \"(null)\\n\".",
    "evidence": "osv:CVE-2026-31487",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.80",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.21",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-31487",
      "aliases": [
        "CVE-2026-31487"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5039563e7c25eccd7fec1de6706011009d1c5665"
                },
                {
                  "fixed": "6e8eb467bed6aa1a563dba8f366c9fd76ba0004e"
                },
                {
                  "fixed": "eedf220442d13b6d97294e5b0ac8a2c38ee1a1a0"
                },
                {
                  "fixed": "c73a58661a760373d08a6883af4f0bb5cc991a67"
                },
                {
                  "fixed": "e0ae367a2de06c49aa1de6ec9b1ab6860bbb2cf0"
                },
                {
                  "fixed": "cc34d77dd48708d810c12bfd6f5bf03304f6c824"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31487.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "6.6.160"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.80"
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.21"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.11"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31487.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.943379962Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6e8eb467bed6aa1a563dba8f366c9fd76ba0004e",
        "https://git.kernel.org/stable/c/c73a58661a760373d08a6883af4f0bb5cc991a67",
        "https://git.kernel.org/stable/c/cc34d77dd48708d810c12bfd6f5bf03304f6c824",
        "https://git.kernel.org/stable/c/e0ae367a2de06c49aa1de6ec9b1ab6860bbb2cf0",
        "https://git.kernel.org/stable/c/eedf220442d13b6d97294e5b0ac8a2c38ee1a1a0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31487.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31487",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31487.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31487",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 499167,
  "published_at": "2026-04-22T13:54:12.29+00:00"
}