CVE-2026-89742

🗓️ 11 Sep 2026 19:46:48Reported by LinuxType

Use-after-free in Linux kernel rapidio mport_cdev dma_req_free after kref_put frees mapping.

Reporter	Title	Published	Views	Family All 21
CBLMariner	CVE-2026-89742 affecting package kernel for versions less than 6.6.157.1-1	1 Oct 202604:01	–	cbl_mariner
Circl	CVE-2026-89742	13 Sep 202619:00	–	circl
Cvelist	CVE-2026-89742 rapidio: mport_cdev: fix use-after-free in dma_req_free()	11 Sep 202619:46	–	cvelist
Debian	[SECURITY] [DSA 6528-1] linux security update	29 Sep 202609:49	–	debian
Debian CVE	CVE-2026-89742	11 Sep 202619:46	–	debiancve
Tenable Nessus	Debian dsa-6528 : ata-modules-6.12.111+deb13-armmp-di - security update	29 Sep 202600:00	–	nessus
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-89742	12 Sep 202600:00	–	nessus
EUVD	EUVD-2026-76654	11 Sep 202619:46	–	euvd
Microsoft CVE	rapidio: mport_cdev: fix use-after-free in dma_req_free()	13 Sep 202608:03	–	mscve
NVD	CVE-2026-89742	11 Sep 202620:20	–	nvd

Vulners

CNA

Node

linux linux_kernelRange4.6–5.10.270

linux linux_kernelRange5.11.0–5.15.221

linux linux_kernelRange5.16.0–6.1.188

linux linux_kernelRange6.2.0–6.6.157

linux linux_kernelRange6.7.0–6.12.109

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": [
      "drivers/rapidio/devices/rio_mport_cdev.c"
    ],
    "versions": [
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "00c5ed913b0dc563fbeb8a97ea8916c03bbbbf6a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "fc79c07cdcde02c5b17633d78777de6ac2c14b29",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "26ccfe7d69e27b0d933ae0a64a23a0cb9b9a85a6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "bd8881c24a9520f9c3d3e855d866197f63e471a7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "9a9929ec875ff20922c90c96fd544ae8a2a61a8d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "e6e925cc1f8067c65c7bec3da50a0ead3b3ef4e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "211c68d817a3d9dc14c0026a59da7cac30f8147e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e8de370188d098bb49483c287b44925957c3c9b6",
        "lessThan": "5cbef379a94b161726c5f504598bf4791d45cedc",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/rapidio/devices/rio_mport_cdev.c"
    ],
    "versions": [
      {
        "version": "4.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.270",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "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/fc79c07cdcde02c5b17633d78777de6ac2c14b29
git	www.git.kernel.org/stable/c/5cbef379a94b161726c5f504598bf4791d45cedc
git	www.git.kernel.org/stable/c/9a9929ec875ff20922c90c96fd544ae8a2a61a8d
git	www.git.kernel.org/stable/c/bd8881c24a9520f9c3d3e855d866197f63e471a7
git	www.git.kernel.org/stable/c/00c5ed913b0dc563fbeb8a97ea8916c03bbbbf6a
git	www.git.kernel.org/stable/c/e6e925cc1f8067c65c7bec3da50a0ead3b3ef4e0
git	www.git.kernel.org/stable/c/26ccfe7d69e27b0d933ae0a64a23a0cb9b9a85a6
git	www.git.kernel.org/stable/c/211c68d817a3d9dc14c0026a59da7cac30f8147e

14 Sep 2026 13:19Current

6.3Medium risk

Vulners AI Score6.3

CVSS 3.17.8

EPSS0.00171