{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "fb700ef026766c95578aafc0db1b208946e7ad4f"
            },
            {
              "fixed": "f52188118d319b47d49ee91a897f6afda4879c59"
            },
            {
              "fixed": "ad3e41855325e55623276660ef20fbc3b8ba087f"
            },
            {
              "fixed": "a080bb69d30f11738d753a60d1eb733d627c2093"
            },
            {
              "fixed": "7c5b0e813efd9124760d5fd1bfc6b229f03fb1a2"
            },
            {
              "fixed": "36e3f13bf0728f4ce11ee8904cec82a783222f62"
            },
            {
              "fixed": "32ac1b0b7f1cfa0d1a1faf9c72f4154046101070"
            },
            {
              "fixed": "ee5a386cfe60f3f8286de16a9db8e1a08f0bc124"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.13.0"
            },
            {
              "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": "6.12.109"
            }
          ],
          "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-2026-89710.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4.1: fix layout segment leak on the pnfs_layout_process() forget path\n\nWhen the server returns a new layout stateid while a valid one is still\nheld, pnfs_layout_process() calls pnfs_mark_matching_lsegs_return() on\nthe on-stack free_me list and jumps to out_forget. Segments whose\nreference count drops to zero are unlinked from lo-\u003eplh_segs and moved\nto free_me by mark_lseg_invalid(); for an idle cached segment the layout\nheader holds the only reference, so this happens on the first decrement.\n\nout_forget never drains free_me -- only the success path calls\npnfs_free_lseg_list().\n\nCommit 814b84971388 (\"pNFS/NFSv4: Fix a layout segment leak in\npnfs_layout_process()\") added the drain; commit 08bd8dbe8882\n(\"pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()\")\nremoved it while switching the destination to lo-\u003eplh_return_segs, which\nis drained elsewhere. Commit fb700ef02676 (\"NFSv4.1: Simplify layout\nreturn in pnfs_layout_process()\") switched the destination back to\nfree_me without restoring the drain.\n\nRestore the pnfs_free_lseg_list() call.",
  "id": "CVE-2026-89710",
  "modified": "2026-09-15T03:30:42.115367825Z",
  "published": "2026-09-11T19:46:25.534Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32ac1b0b7f1cfa0d1a1faf9c72f4154046101070"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36e3f13bf0728f4ce11ee8904cec82a783222f62"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c5b0e813efd9124760d5fd1bfc6b229f03fb1a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a080bb69d30f11738d753a60d1eb733d627c2093"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad3e41855325e55623276660ef20fbc3b8ba087f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee5a386cfe60f3f8286de16a9db8e1a08f0bc124"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f52188118d319b47d49ee91a897f6afda4879c59"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89710.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89710"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "NFSv4.1: fix layout segment leak on the pnfs_layout_process() forget path"
}