{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2bbb6983887fefc8026beab01198d30f47b7bd22"
            },
            {
              "fixed": "de4f1bcb61a73cc896decdbd27d61a34add93b53"
            },
            {
              "fixed": "cf293c9c7424de0d04b51367d07f40570ce80231"
            },
            {
              "fixed": "bee8d1fcdc8f389b595b0a4cf6fe8440f499458a"
            },
            {
              "fixed": "3a5834db2b1ce25649f330e78efe1ccde78967fd"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "42802952a2725f85f7e36ee3b29593af5fe87197"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.9.320"
            },
            {
              "fixed": "4.10"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.14.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93163.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - fix rng list on registration error\n\nhwrng_register(rng) does the following:\n\n1. Checks if rng has name and read methods set\n2. Checks if the name already exists\n3. Adds rng to global rng_list\n4. May try to set rng to current_rng\n\nIf step 4 fails, it returns an error. However, it does not remove the\nrng from rng_list, causing a dangling reference which can result in\nuse-after-free if the caller frees rng, since registration failed.\n\nAdd a list_del_init() cleanup step.",
  "id": "CVE-2026-93163",
  "modified": "2026-09-19T03:30:33.793500893Z",
  "published": "2026-09-17T16:11:56.570Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a5834db2b1ce25649f330e78efe1ccde78967fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bee8d1fcdc8f389b595b0a4cf6fe8440f499458a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf293c9c7424de0d04b51367d07f40570ce80231"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de4f1bcb61a73cc896decdbd27d61a34add93b53"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93163.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93163"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "hwrng: core - fix rng list on registration error"
}