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CVE-2026-46134

📛 CVE Title

platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration

⬇ Download JSON ⚠ View as Threat

Description

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration cros_typec_register_thunderbolt() missed initializing the `adata->lock` mutex. This leads to a NULL dereference when the mutex is later acquired (e.g. in cros_typec_altmode_work()). Initialize the mutex in cros_typec_register_thunderbolt() to fix the issue.

Overview

State
PUBLISHED
Assigner (CNA)
Linux
CVSS severity
high
CVSS score
CVSS 7.1 / 10 7.1 7.1 / 10
CVSS vector
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Effective score
7.1 / 10 HIGH source: CNA overview
CWE(s)
—
Reserved
2026-05-13
Published
2026-05-28 09:35 UTC
Last updated
2026-05-28 09:35 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46134.json
Linked Threat
CVE-2026-46134 — CVE-2026-46134

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-05-28 10:16:28 UTC
NVD last modified
2026-06-24 17:49:46 UTC
NVD CVSS v3.1
CVSS 5.5 / 10 5.5 5.5 / 10 MEDIUM source: nvd@nist.gov
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
1.8 / 10
Impact subscore
3.6 / 10
EPSS score
0.0013 (probability of exploitation in next 30 days)
EPSS percentile
2.69% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-476 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-08-01 17:03 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-32761
Assigner
Linux
Published
May 28, 2026, 9:35:48 AM
Updated
Jun 14, 2026, 5:56:59 PM
EUVD base score
0.0 / 10
EUVD-reported EPSS
0.1300
Vendors
Linux
Products
Linux (6.14)
Linux (3b00be26b16ad72c85624ada08cbae2d2c57b6e9 <525cb7ba6661074c1c5cc3772bccc6afab6791ef)
Linux (patch: 7.0.7)
Linux (patch: 7.1)
Linux (patch: 0)
Linux (3b00be26b16ad72c85624ada08cbae2d2c57b6e9 <3b13d5883a097f538fccbab1c61c95546d29621f)
Linux (3b00be26b16ad72c85624ada08cbae2d2c57b6e9 <23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435)
Linux (patch: 6.18.30)
Aliases
GHSA-2xcf-7w6q-9vxc

ENISA description: In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration cros_typec_register_thunderbolt() missed initializing the `adata->lock` mutex. This leads to a NULL dereference when the mutex is later acquired (e.g. in cros_typec_altmode_work()). Initialize the mutex in cros_typec_register_thunderbolt() to fix the issue.

EUVD references (3)

Affected products (2)
VendorProductVersionsPlatforms
Linux Linux 3b00be26b16ad72c85624ada08cbae2d2c57b6e9 (affected), 3b00be26b16ad72c85624ada08cbae2d2c57b6e9 (affected), 3b00be26b16ad72c85624ada08cbae2d2c57b6e9 (affected) —
Linux Linux 6.14 (affected), 0 (unaffected), 6.18.30 (unaffected), 7.0.7 (unaffected), 7.1-rc3 (unaffected) —

Affected products — CPE 2.3 (3) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

Web references (6)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

  • RHSB-2026-004 Process Exit Race Condition - Linux Kernel (CVE-2026 ...
    web:access.redhat.com

    Applying the kernel fix , when available, is the only comprehensive remediation . Option 1: Admin-only scope Setting ptrace_scope to 2 restricts ptrace attach to processes with CAP_SYS_PTRACE. This blocks many currently known exploitation paths, but other paths that do not rely on ptrace may exist. This is suitable for most production environments.

    2026-06-04 00:00 UTC
  • Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...
    web:cybersecuritynews.com

    Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

    2026-06-04 00:00 UTC
  • Security Update Guide - Microsoft
    web:portal.msrc.microsoft.com

    The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

    2026-06-04 00:00 UTC
  • Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...
    web:support.servicenow.com

    Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

    2026-06-04 00:00 UTC
  • Critical Patches Issued for Microsoft Products, April 14, 2026
    web:www.cisecurity.org

    <p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

    2026-06-04 00:00 UTC
  • April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

    2026-06-04 00:00 UTC
  • Grammarly: Free AI Writing Assistance
    web:www.grammarly.com

    Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.

    2026-06-04 00:00 UTC
  • IBM Support: Fix Central
    web:www.ibm.com

    Fix Central allows you to search, select, order, and download fixes to your system with a choice of delivery options. Fixes provide changes to your software, Licensed Internal Code, or machine code that fix known problems, add new function, and keep your system or Hardware Management Console operating efficiently.

    2026-06-04 00:00 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    web:www.oracle.com

    This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

    2026-06-04 00:00 UTC
  • Patch Tuesday June 2026: Security Updates & CVE Analysis
    web:zecurit.com

    Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

    2026-06-04 00:00 UTC
  • April 2026 Critical Patch Update Released | security - Oracle Blogs
    web:blogs.oracle.com

    For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

    2026-06-19 02:28 UTC
  • Patch Tuesday, April 2026 Edition - Krebs on Security
    web:krebsonsecurity.com

    Satnam Narang, senior staff research engineer at Tenable, said April marks the second-biggest Patch Tuesday ever for Microsoft.

    2026-06-19 02:28 UTC
  • Nvd - Cve-2026-46934
    web:nvd.nist.gov

    An official website of the United States government Here's how you know

    2026-06-19 02:28 UTC
  • Oracle CPU April 2026: Delayed RUs & First Analysis ¶
    web:oradba.ch

    On April 21, 2026 , Oracle released the Critical Patch Update (CPU) for April 2026 — 481 new security fixes across the entire Oracle product stack. For Oracle Database, this means another round of mandatory patching. What makes this quarter unusual: several key Release Updates, including 19.31 and 23.26.2, were not available on release day and are delayed by up to a week or more.

    2026-06-19 02:28 UTC
  • Microsoft Technical Security Notifications
    web:www.microsoft.com

    Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

    2026-06-19 02:28 UTC
  • Oracle Critical Security Patch Update Advisory - May 2026
    web:www.oracle.com

    This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.

    2026-06-19 02:28 UTC
  • Windows 11 KB5083769 update triggers BitLocker recovery | Windows Central
    web:www.windowscentral.com

    Microsoft Windows Windows 11 "This update broke BitLocker for me" — Windows 11's April patch is locking out PCs, but here's the fix that works How Tos By Mauro Huculak published April 20 ...

    2026-06-19 02:28 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46134.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/chrome/cros_typec_altmode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435",
              "status": "affected",
              "version": "3b00be26b16ad72c85624ada08cbae2d2c57b6e9",
              "versionType": "git"
            },
            {
              "lessThan": "3b13d5883a097f538fccbab1c61c95546d29621f",
              "status": "affected",
              "version": "3b00be26b16ad72c85624ada08cbae2d2c57b6e9",
              "versionType": "git"
            },
            {
              "lessThan": "525cb7ba6661074c1c5cc3772bccc6afab6791ef",
              "status": "affected",
              "version": "3b00be26b16ad72c85624ada08cbae2d2c57b6e9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/chrome/cros_typec_altmode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration\n\ncros_typec_register_thunderbolt() missed initializing the `adata->lock`\nmutex.  This leads to a NULL dereference when the mutex is later\nacquired (e.g. in cros_typec_altmode_work()).\n\nInitialize the mutex in cros_typec_register_thunderbolt() to fix the\nissue."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T09:35:48.624Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b13d5883a097f538fccbab1c61c95546d29621f"
        },
        {
          "url": "https://git.kernel.org/stable/c/525cb7ba6661074c1c5cc3772bccc6afab6791ef"
        }
      ],
      "title": "platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46134",
    "datePublished": "2026-05-28T09:35:48.624Z",
    "dateReserved": "2026-05-13T15:03:33.099Z",
    "dateUpdated": "2026-05-28T09:35:48.624Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}