{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7063fbf2261194f72ee75afca67b3b38b554b5fa"
            },
            {
              "fixed": "5d7cbfb65e47cc71d5d94d87d5d0d1679080f3eb"
            },
            {
              "fixed": "925d8564f1b2d9b46c5ab63b9bc942cea006da9b"
            },
            {
              "fixed": "f06c2d26d1999d37e93299db0ecead04ca7d0b9f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.16"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97949.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nconfigfs: unhash the dentry before dropping the item in rmdir\n\nconfigfs_get_config_item() treats a hashed dentry as proof that\nsd-\u003es_element is a live config_item.  configfs_rmdir() breaks that:\nsimple_rmdir() leaves the dentry hashed, the last reference to the item is\ndropped right after, and the dentry is only unhashed by d_delete() once\n-\u003ermdir() has returned.  configfs_symlink() resolves its target holding no\nlock on it, so get_target() can land in that window:\n\n  BUG: KASAN: slab-use-after-free in config_item_get+0x26/0x90\n   get_target fs/configfs/symlink.c:128 [inline]\n   configfs_symlink+0x4ab/0x1030 fs/configfs/symlink.c:185\n\nUnhash in configfs_remove_dir(), while the item is still guaranteed to be\nthere.  A reference obtained just before that stays harmless, as\ncreate_link() rechecks CONFIGFS_USET_DROPPING, already set by\nconfigfs_detach_prep().  Both configfs_unregister_subsystem() paths\nd_drop() after detaching, so this only makes rmdir match them.",
  "id": "CVE-2026-97949",
  "modified": "2026-09-27T03:30:31.107503325Z",
  "published": "2026-09-25T10:22:58.375Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d7cbfb65e47cc71d5d94d87d5d0d1679080f3eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/925d8564f1b2d9b46c5ab63b9bc942cea006da9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f06c2d26d1999d37e93299db0ecead04ca7d0b9f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97949.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97949"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "configfs: unhash the dentry before dropping the item in rmdir"
}