CVE-2024-26940

🗓️ 01 May 2024 05:17:48Reported by LinuxType

cve🔗 web.nvd.nist.gov👁 2775 Views🌐 WEB

CVE-2024-26940 in Linux kernel resolves vulnerability in drm/vmwgfx by creating debugfs ttm_resource_manager entry only when needed, preventing crash when reading from mob_ttm file

Reporter	Title	Published	Views	Family All 136
IBM Security Bulletins	Security Bulletin: Vulnerability in linux (Kernel) affects IBM Integrated Analytics System.	2 Jul 202512:19	–	ibm
Tenable Nessus	AlmaLinux 8 : kernel (ALSA-2024:5101)	9 Aug 202400:00	–	nessus
Tenable Nessus	AlmaLinux 8 : kernel-rt (ALSA-2024:5102)	9 Aug 202400:00	–	nessus
Tenable Nessus	Azure Linux 3.0 Security Update: hyperv-daemons (CVE-2024-26940)	22 Jan 202600:00	–	nessus
Tenable Nessus	MiracleLinux 8 : kernel-4.18.0-553.16.1.el8_10 (AXSA:2024-8704:25)	20 Jan 202600:00	–	nessus
Tenable Nessus	MiracleLinux 9 : kernel-5.14.0-503.11.1.el9_5 (AXSA:2025-9528:03)	20 Jan 202600:00	–	nessus
Tenable Nessus	Oracle Linux 8 : kernel (ELSA-2024-5101)	9 Aug 202400:00	–	nessus
Tenable Nessus	Oracle Linux 9 : kernel (ELSA-2024-9315)	19 Nov 202400:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2024-5.0-0274	24 Jul 202400:00	–	nessus
Tenable Nessus	RHEL 8 : kernel (RHSA-2024:5101)	8 Aug 202400:00	–	nessus

NVD

Vulners

CNA

Node

linux linux_kernelRange5.19–6.1.84

linux linux_kernelRange6.2–6.6.24

linux linux_kernelRange6.7–6.7.12

linux linux_kernelRange6.8–6.8.3

linux linux_kernelMatch6.9rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/vmwgfx/vmwgfx_drv.c"
    ],
    "versions": [
      {
        "version": "af4a25bbe5e7e60ff696ef5c1ec48ab2d51c17c6",
        "lessThan": "016119154981d81c9e8f2ea3f56b9e2b4ea14500",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af4a25bbe5e7e60ff696ef5c1ec48ab2d51c17c6",
        "lessThan": "042ef0afc40fa1a22b3608f22915b91ce39d128f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af4a25bbe5e7e60ff696ef5c1ec48ab2d51c17c6",
        "lessThan": "25e3ce59c1200f1f0563e39de151f34962ab0fe1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af4a25bbe5e7e60ff696ef5c1ec48ab2d51c17c6",
        "lessThan": "eb08db0fc5354fa17b7ed66dab3c503332423451",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af4a25bbe5e7e60ff696ef5c1ec48ab2d51c17c6",
        "lessThan": "4be9075fec0a639384ed19975634b662bfab938f",
        "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/gpu/drm/vmwgfx/vmwgfx_drv.c"
    ],
    "versions": [
      {
        "version": "5.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.84",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.24",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.7.12",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.8.3",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/016119154981d81c9e8f2ea3f56b9e2b4ea14500
git	www.git.kernel.org/stable/c/042ef0afc40fa1a22b3608f22915b91ce39d128f
git	www.git.kernel.org/stable/c/4be9075fec0a639384ed19975634b662bfab938f
git	www.git.kernel.org/stable/c/25e3ce59c1200f1f0563e39de151f34962ab0fe1
git	www.git.kernel.org/stable/c/eb08db0fc5354fa17b7ed66dab3c503332423451

Parameter	Position	Path	Description
mob_ttm	path	/sys/kernel/debug/dri/0/mob_ttm	Debugfs entry mob_ttm created unconditionally leading to crash when read if ttm_resource_manager is not allocated.
system_mob_ttm	path	/sys/kernel/debug/dri/0/system_mob_ttm	Debugfs entry system_mob_ttm created unconditionally leading to crash when read if ttm_resource_manager is not allocated.
gmr_ttm	path	/sys/kernel/debug/dri/0/gmr_ttm	Debugfs entry gmr_ttm created unconditionally leading to crash when read if ttm_resource_manager is not allocated.

17 Jun 2026 07:18Current

6.4Medium risk

Vulners AI Score6.4

CVSS 3.15.5

EPSS0.00227

SSVC