{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8eea99a81c6f67c08fedd7db2ccd09aa93db69a7"
            },
            {
              "fixed": "f060f43a67635dbb393bf5dcbfc3e8b9a44942cb"
            },
            {
              "fixed": "b57bd8cb739cb3cf88bdb1a5903a42a707a5c282"
            },
            {
              "fixed": "431c70ca5163c98c746f22f16cd58ca5aefec6dc"
            },
            {
              "fixed": "b0c58934f5cc4f05b63ef6605dd10c1d0d489e88"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93211.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: initialize DRC hash table before registering shrinker\n\nshrinker_register() precedes the INIT_LIST_HEAD loop and the\ndrc_hashsize store. On weakly-ordered architectures (arm64, ppc),\na shrinker scan can observe drc_hashsize before the bucket list\nheads are initialized, causing a NULL deref in the DRC shrinker\ncallback.\n\nMove bucket initialization and the drc_hashsize store before\nshrinker_register() so the hash table is fully initialized before\nit becomes visible to the shrinker.",
  "id": "CVE-2026-93211",
  "modified": "2026-09-26T03:30:19.950975106Z",
  "published": "2026-09-24T15:10:34.407Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/431c70ca5163c98c746f22f16cd58ca5aefec6dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0c58934f5cc4f05b63ef6605dd10c1d0d489e88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b57bd8cb739cb3cf88bdb1a5903a42a707a5c282"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f060f43a67635dbb393bf5dcbfc3e8b9a44942cb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93211.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93211"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "nfsd: initialize DRC hash table before registering shrinker"
}