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CVE-2026-46229

📛 CVE Title

drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure

⬇ Download JSON ⚠ View as Threat

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure KFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE but not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated VRAM with stale data from prior use observable by compute kernels. The GEM ioctl path already sets VRAM_CLEARED for all userspace allocations via amdgpu_gem_create_ioctl() and amdgpu_mode_dumb_create(). The KFD path was missing this flag, allowing stale page table remnants to leak into user buffers. This causes crashes in RCCL P2P transport where non-zero data in ptrExchange/head/tail fields corrupts the protocol handshake.

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
MSRC score
7.1 / 10 HIGH MS rating: Moderate
CWE(s)
—
Reserved
2026-05-13
Published
2026-05-28 09:40 UTC
Last updated
2026-05-30 10:42 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46229.json
Linked Threat
CVE-2026-46229 — CVE-2026-46229

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 10:16:38 UTC
NVD last modified
2026-06-17 10:53:22 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
0.0012 (probability of exploitation in next 30 days)
EPSS percentile
2.06% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

NVD / KEV / EPSS data refreshed 2026-07-27 23:44 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-2026-32856
Assigner
Linux
Published
May 28, 2026, 9:40:51 AM
Updated
Jun 14, 2026, 6:04:17 PM
EUVD base score
0.0 / 10
EUVD-reported EPSS
0.1200
Vendors
Linux
Products
Linux (6856e4b65f64eeb3f17148f79b36c1d60c627529 <77d0b5d11387071770246fd0185a69fa28e8e109)
Linux (patch: 6.6.140)
Linux (6856e4b65f64eeb3f17148f79b36c1d60c627529 <047d44d8d29a6a1a5757256837aa9dd78e3cd0b5)
Linux (patch: 7.1)
Linux (5.4)
Linux (6856e4b65f64eeb3f17148f79b36c1d60c627529 <32b153658f017ad2f5bf8aab479e8d16ac95bc3a)
Linux (patch: 6.18.32)
Linux (patch: 7.0.9)
Linux (6856e4b65f64eeb3f17148f79b36c1d60c627529 <ad52d61d82181dbdb7f05826de38352d5e550cc2)
Linux (patch: 0)
Linux (patch: 6.12.90)
Linux (6856e4b65f64eeb3f17148f79b36c1d60c627529 <1db431380879fd9d28b763a88a0c0431be5be8df)
Aliases
GHSA-w77m-3j47-48fr

ENISA description: In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure KFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE but not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated VRAM with stale data from prior use observable by compute kernels. The GEM ioctl path already sets VRAM_CLEARED for all userspace allocations via amdgpu_gem_create_ioctl() and amdgpu_mode_dumb_create(). The KFD path was missing this flag, allowing stale page table remnants to leak into user buffers. This causes crashes in RCCL P2P transport where non-zero data in ptrExchange/head/tail fields corrupts the protocol handshake.

EUVD references (5)

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-11-05 03:38 UTC (source: CVRF).

MS severity
Moderate
MS CVSS base score
7.1 / 10 (temporal 6.5)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U
Release
2026-May
Microsoft remediations / KB articles (2)

Affected products (2)
VendorProductVersionsPlatforms
Linux Linux 6856e4b65f64eeb3f17148f79b36c1d60c627529 (affected), 6856e4b65f64eeb3f17148f79b36c1d60c627529 (affected), 6856e4b65f64eeb3f17148f79b36c1d60c627529 (affected), 6856e4b65f64eeb3f17148f79b36c1d60c627529 (affected), 6856e4b65f64eeb3f17148f79b36c1d60c627529 (affected) —
Linux Linux 5.4 (affected), 0 (unaffected), 6.6.140 (unaffected), 6.12.90 (unaffected), 6.18.32 (unaffected), 7.0.9 (unaffected), 7.1-rc1 (unaffected) —

Affected products — CPE 2.3 (1) 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:*:*:*:*:*:*:*:*

Vendor references (5)

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

Web references (10)

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 (5)

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 (20)

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

  • THREAT ADVISORY RedSun Zero-Day (Windows Defender) April 17, 2026
    web:blackswan-cybersecurity.com

    Cloud Files API activity originating outside legitimate OneDrive/sync processes. Mitigation Steps: Apply all Windows updates immediately (monitor MSRC for an emergency RedSun-specific patch . None released as of April 17, 2026 ). Supplement Defender with a secondary EDR solution (e.g., Huntress) capable of detecting Defender bypasses.

    2026-06-03 23:59 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.

    2026-06-03 23:59 UTC
  • GitHub - 0xBlackash/CVE-2026-41091: CVE-2026-41091
    web:github.com

    CVE ID: CVE - 2026 -41091 Vulnerability Type: Improper Link Resolution Before File Access (CWE-59 - Link Following) Affected Component: Microsoft Malware Protection Engine Root Cause: Defender fails to properly resolve links/junctions during cloud-tagged file remediation /rollback, allowing redirection of privileged writes. Impact: Local authenticated attacker can escalate from standard user to ...

    2026-06-03 23:59 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.

    2026-06-03 23:59 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 ...

    2026-06-03 23:59 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.

    2026-06-03 23:59 UTC
  • Oracle's first monthly patch release fixes 35 flaws, including 11 rated ...
    web:www.csoonline.com

    Oracle has released the first security fixes in its new monthly Critical Security Patch Update (CSPU) cycle, designed to address urgent vulnerabilities that can't wait for the company's ...

    2026-06-03 23:59 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.

    2026-06-03 23:59 UTC
  • VirusTotal - Home
    web:www.virustotal.com

    VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.

    2026-06-03 23:59 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 .

    2026-06-03 23:59 UTC
  • Ubiquiti rushes out emergency fix for critical bug in UniFi Network ...
    web:cybernews.com

    Ubiquiti has released emergency updates for its UniFi Network Application - a critical vulnerability allows hackers to compromise systems without credentials.

    2026-06-19 02:28 UTC
  • Critical Microsoft Outlook and Word Flaws Enable Malicious Code Execution
    web:cyberpress.org

    The remediation level is listed as Official Fix , and report confidence is Confirmed. Mitigation Security teams should prioritize patching Microsoft Office LTSC 2024 installations immediately. Given the Preview Pane attack vector, organizations using Outlook (classic) face elevated risk even without direct user interaction with malicious content.

    2026-06-19 02:28 UTC
  • CVE-2026-46229 | Security Details | Sonatype Guide
    web:guide.sonatype.com

    Find vulnerabilities. Fix fast with AI. Search components by package, version, or CVE to get started. Unlock full vulnerability insights and fix guidance with Sonatype Guide.

    2026-06-19 02:28 UTC
  • The Official Fix Chocolate Bar | Dubai's Viral Chocolate Bars
    web:officialfixdessertchocolatier.com

    Indulge in Dubai's viral chocolate bars with FIX Dessert Chocolatier. Shop our hero collection featuring Baklawa, Knafeh, Biscoff, and more. Fast delivery in Dubai & Abu Dhabi. Order now!

    2026-06-19 02:28 UTC
  • KB5077469 - Description of the security update for SQL Server 2019 CU32 ...
    web:support.microsoft.com

    The Excel file also contains detailed fix lists. Download this Excel file now. Note: Individual entries in the following table can be referenced directly through a bookmark. If you select any bug reference ID in the table, a bookmark tag is added to the URL by using the "#bkmk_NNNNNNN" format.

    2026-06-19 02:28 UTC
  • Addressing Exchange Server May 2026 vulnerability CVE-2026-42897
    web:techcommunity.microsoft.com

    UPDATE June 9, 2026 : Please see our release blog post for June 2026 Security Update for more information on this CVE : Released: June 2026 Exchange Server Security Updates | Microsoft Community Hub. On May 14, 2026 , Microsoft disclosed CVE - 2026 -42897, a reported vulnerability affecting Exchange Outlook Web Access (OWA). An attacker could exploit this issue by sending a specially crafted email ...

    2026-06-19 02:28 UTC
  • Microsoft working on a fix for RoguePlanet, a flaw that grants full PC ...
    web:www.malwarebytes.com

    Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.

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

    Oracle Critical Patch Update Advisory - April 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical Patch ...

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

    Oracle Critical Patch Update Advisory - January 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical ...

    2026-06-19 02:28 UTC
  • Microsoft confirms Windows 11 May update is failing with error 0x800f0922
    web:www.windowscentral.com

    Windows 11 May 2026 update fails on some PCs, but Microsoft has already shipped a workaround, and it's working on a permanent fix .

    2026-06-19 02:28 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46229.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Clear VRAM on allocation to prevent stale data exposure\n\nKFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE\nbut not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated\nVRAM with stale data from prior use observable by compute kernels.\n\nThe GEM ioctl path already sets VRAM_CLEARED for all userspace\nallocations via amdgpu_gem_create_ioctl() and\namdgpu_mode_dumb_create(). The KFD path was missing this flag,\nallowing stale page table remnants to leak into user buffers.\n\nThis causes crashes in RCCL P2P transport where non-zero data in\nptrExchange/head/tail fields corrupts the protocol handshake."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-30T10:42:25.387Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/ad52d61d82181dbdb7f05826de38352d5e550cc2"
        }
      ],
      "title": "drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46229",
    "datePublished": "2026-05-28T09:40:51.300Z",
    "dateReserved": "2026-05-13T15:03:33.106Z",
    "dateUpdated": "2026-05-30T10:42:25.387Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}