{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  NFSv4.1: fix layout segment leak on the pnfs_layout_process() forget path  When the server returns a new layout stateid while a valid one is still held, pnfs_layout_process() calls pnfs_mark_matching_lsegs_return() on the on-stack free_me list and jumps to out_forget. Segments whose reference count drops to zero are unlinked from lo-\u003eplh_segs and moved to free_me by mark_lseg_invalid(); for an idle cached segment the layout header holds the only reference, so this happens on the first decrement.  out_forget never drains free_me -- only the success path calls pnfs_free_lseg_list().  Commit 814b84971388 (\"pNFS/NFSv4: Fix a layout segment leak in pnfs_layout_process()\") added the drain; commit 08bd8dbe8882 (\"pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()\") removed it while switching the destination to lo-\u003eplh_return_segs, which is drained elsewhere. Commit fb700ef02676 (\"NFSv4.1: Simplify layout return in pnfs_layout_process()\") switched the destination back to free_me without restoring the drain.  Restore the pnfs_free_lseg_list() call.",
  "id": "DEBIAN-CVE-2026-89710",
  "modified": "2026-09-12T08:47:24.976359313Z",
  "published": "2026-09-11T20:19:58.380Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-89710"
    }
  ],
  "upstream": [
    "CVE-2026-89710"
  ]
}