{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-54321",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54321",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-30T12:34:14.793Z",
    "updatedAt": "2026-05-11T19:59:42.500Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "driver core: fix potential null-ptr-deref in device_add()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: fix potential null-ptr-deref in device_add()\n\nI got the following null-ptr-deref report while doing fault injection test:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000058\nCPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G    B   W        N 6.1.0-rc3+\nRIP: 0010:klist_put+0x2d/0xd0\nCall Trace:\n <TASK>\n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x196/0x210\n bus_remove_device+0x1bd/0x240\n device_add+0xd3d/0x1100\n w1_add_master_device+0x476/0x490 [wire]\n ds2482_probe+0x303/0x3e0 [ds2482]\n\nThis is how it happened:\n\nw1_alloc_dev()\n  // The dev->driver is set to w1_master_driver.\n  memcpy(&dev->dev, device, sizeof(struct device));\n  device_add()\n    bus_add_device()\n    dpm_sysfs_add() // It fails, calls bus_remove_device.\n\n    // error path\n    bus_remove_device()\n      // The dev->driver is not null, but driver is not bound.\n      __device_release_driver()\n        klist_remove(&dev->p->knode_driver) <-- It causes null-ptr-deref.\n\n    // normal path\n    bus_probe_device() // It's not called yet.\n      device_bind_driver()\n\nIf dev->driver is set, in the error path after calling bus_add_device()\nin device_add(), bus_remove_device() is called, then the device will be\ndetached from driver. But device_bind_driver() is not called yet, so it\ncauses null-ptr-deref while access the 'knode_driver'. To fix this, set\ndev->driver to null in the error path before calling bus_remove_device().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "57eee3d23e8833ca18708b374c648235691942ba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "97aa8fb74bbe9aaf4ed5962a784f73b071bd16bf"
            },
            {
              "version": "57eee3d23e8833ca18708b374c648235691942ba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c59650d078b1b3f1ea50d5f8ee9fcc537dc02d3"
            },
            {
              "version": "57eee3d23e8833ca18708b374c648235691942ba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7cf515bf9e8c2908dc170ecf2df117162a16c9c5"
            },
            {
              "version": "57eee3d23e8833ca18708b374c648235691942ba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "17982304806c5c10924e73f7ca5556e0d7378452"
            },
            {
              "version": "57eee3d23e8833ca18708b374c648235691942ba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f6837f34a34973ef6600c08195ed300e24e97317"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.26",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.26"
            },
            {
              "version": "5.10.249",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.99",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}