CVE-2026-89495

🗓️ 11 Sep 2026 19:43:46Reported by LinuxType

Linux kernel o2dlm heap out-of-bounds write via unbounded namelen in DLM migration handler.

Reporter	Title	Published	Views	Family All 7
Cvelist	CVE-2026-89495 ocfs2: bound namelen in dlm_migrate_request_handler	11 Sep 202619:43	–	cvelist
Debian CVE	CVE-2026-89495	11 Sep 202619:43	–	debiancve
EUVD	EUVD-2026-76401	11 Sep 202619:43	–	euvd
NVD	CVE-2026-89495	11 Sep 202620:19	–	nvd
OSV	DEBIAN-CVE-2026-89495	11 Sep 202620:19	–	osv
Positive Technologies	PT-2026-90211	11 Sep 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-89495	11 Sep 202621:02	–	redhatcve

Vulners

CNA

Node

linux linux_kernelRange2.6.16–6.12.109

linux linux_kernelRange6.13.0–6.18.50

linux linux_kernelRange6.19.0–7.2.4

linux linux_kernelRange7.3.0–7.3-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ocfs2/dlm/dlmmaster.c"
    ],
    "versions": [
      {
        "version": "6714d8e86bf443f6f7af50f9d432025649f091f5",
        "lessThan": "f8658ee3327f73bd81c0bcd07cdeb5a8527fac98",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6714d8e86bf443f6f7af50f9d432025649f091f5",
        "lessThan": "de10cd3b062a5235af754925fcf49beb5a1109d4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6714d8e86bf443f6f7af50f9d432025649f091f5",
        "lessThan": "2487bea2098322669f0563baff53e797486b823f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6714d8e86bf443f6f7af50f9d432025649f091f5",
        "lessThan": "ea5b5609305a8437bc955a0834a530c12246d78f",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ocfs2/dlm/dlmmaster.c"
    ],
    "versions": [
      {
        "version": "2.6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/de10cd3b062a5235af754925fcf49beb5a1109d4
git	www.git.kernel.org/stable/c/f8658ee3327f73bd81c0bcd07cdeb5a8527fac98
git	www.git.kernel.org/stable/c/2487bea2098322669f0563baff53e797486b823f
git	www.git.kernel.org/stable/c/ea5b5609305a8437bc955a0834a530c12246d78f

11 Sep 2026 20:19Current

EPSS0.002