{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8e7b58c27b3c567316a51079b375b846f9223bba"
            },
            {
              "fixed": "8a496aaa3da6e8d545896c2370c7e617cc931ae2"
            },
            {
              "fixed": "6fcb0b745a0b80df62eae4a93ce52a2d061f4ac2"
            },
            {
              "fixed": "bf242baf58de03467f226c8e29554c9495dca7fc"
            },
            {
              "fixed": "24974bd0da1b47fd56c975533ead50abf754e74d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "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/2026/89xxx/CVE-2026-89501.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Hold cpu_buffer::lock when resizing a subbuf\n\nBecause, ring_buffer_subbuf_order_set() can clear cpu_buffer-\u003efree_page,\nhold cpu_buffer-\u003elock to prevent races with\nring_buffer_alloc_read_page() and ring_buffer_free_read_page().",
  "id": "CVE-2026-89501",
  "modified": "2026-09-15T03:30:33.910418150Z",
  "published": "2026-09-11T19:43:50.063Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24974bd0da1b47fd56c975533ead50abf754e74d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fcb0b745a0b80df62eae4a93ce52a2d061f4ac2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a496aaa3da6e8d545896c2370c7e617cc931ae2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf242baf58de03467f226c8e29554c9495dca7fc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89501.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89501"
    },
    {
      "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:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ring-buffer: Hold cpu_buffer::lock when resizing a subbuf"
}