{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8a9d2191e9f43bbcd256a9a6871bd73434c83f2f"
            },
            {
              "fixed": "16df2520502867a4f34e202b89d01243d59bb8b5"
            },
            {
              "fixed": "dcc85fc28f884038735464f6f104dda9c7dbfad6"
            },
            {
              "fixed": "5b69ebe20d7f944c1f45177dca0c11474ac277cc"
            },
            {
              "fixed": "7029e70cf86d5c54c0a2812479b0bee2cabcbaaa"
            },
            {
              "fixed": "71bd64471ff583101b4a33dfc838ce29aef57960"
            },
            {
              "fixed": "842397fdfd2e61d6470166c796f3125b6c27a162"
            },
            {
              "fixed": "15c8559376416a84c3d8402fd8d0c89bb323d05f"
            },
            {
              "fixed": "7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.30"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "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/2026/90xxx/CVE-2026-90419.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: prevent out-of-bounds read in super root block parsing\n\nsuper-root inode metadata size is trusted before nilfs_read_inode_common().\n\nReject super-root inode sizes whose computed on-disk footprint exceeds the\nfilesystem block size. This prevents malformed filesystem images from\nmaking nilfs_read_inode_common() read past the end of the super-root block.\n\n[ryusuke: clarify the commit title]",
  "id": "CVE-2026-90419",
  "modified": "2026-09-19T03:30:47.909148126Z",
  "published": "2026-09-17T16:09:43.880Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/842397fdfd2e61d6470166c796f3125b6c27a162"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dcc85fc28f884038735464f6f104dda9c7dbfad6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90419.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90419"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "nilfs2: prevent out-of-bounds read in super root block parsing"
}