CVE-2026-45996

Description

In the Linux kernel, the following vulnerability has been resolved: spi: imx: fix use-after-free on unbind The SPI subsystem frees the controller and any subsystem allocated driver data as part of deregistration (unless the allocation is device managed). Take another reference before deregistering the controller so that the driver data is not freed until the driver is done with it.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 7.8 / 10
CVSS vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Effective score: 7.8 / 10 HIGH source: CNA overview
MSRC score: 5.5 / 10 MEDIUM MS rating: Moderate
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-27 12:55 UTC
Last updated: 2026-05-27 12:55 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/45xxx/CVE-2026-45996.json
Linked Threat: CVE-2026-45996 — CVE-2026-45996

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: 2026-05-27 14:17:17 UTC
NVD last modified: 2026-06-19 13:16:31 UTC
NVD CVSS v3.1: 7.8 / 10 HIGH source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0014 (probability of exploitation in next 30 days)
EPSS percentile: 3.70% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26

NVD-assigned CWE(s): CWE-416 (differs from the CNA list above)

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-2026-32292
Assigner: Linux
Published: May 27, 2026, 12:55:50 PM
Updated: Jun 19, 2026, 11:58:52 AM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1400
Vendors: Linux
Products: Linux (307c897db762d1e0feee9477276b08f6deca4a5b <1c78c2002380a1fe31bfb01a3d5f29809e55a096)

Linux (307c897db762d1e0feee9477276b08f6deca4a5b <132e47030b0b5e398e0da6c59df5a5dae9b52cff)

Linux (5.19)

Linux (patch: 6.6.140)

Linux (patch: 0)

Linux (307c897db762d1e0feee9477276b08f6deca4a5b <aa9025a498036b6012769f7af36d421385386c17)

Linux (patch: 7.1)

Linux (307c897db762d1e0feee9477276b08f6deca4a5b <f99165ef067723221472ce1aff632bc74f562643)

Linux (patch: 6.18.27)

Linux (patch: 7.0.4)

Linux (patch: 6.12.86)

Linux (307c897db762d1e0feee9477276b08f6deca4a5b <c7c40c3e7b9fb900504aa746de3e53c5275b24bd)

Linux (patch: 6.1.176)

Linux (307c897db762d1e0feee9477276b08f6deca4a5b <385a330083f8dd47c15b02e9a83aef9234a37003)
Aliases: GHSA-3wqv-wjx5-m93q

ENISA description: In the Linux kernel, the following vulnerability has been resolved: spi: imx: fix use-after-free on unbind The SPI subsystem frees the controller and any subsystem allocated driver data as part of deregistration (unless the allocation is device managed). Take another reference before deregistering the controller so that the driver data is not freed until the driver is done with it.

EUVD references (6)

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 2026-08-12 01:09 UTC (source: CVRF).

MS severity: Moderate
MS CVSS base score: 5.5 / 10 (temporal 5.5)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Release: 2026-May

Microsoft remediations / KB articles (2)

CBL-Mariner Releases — Vendor Fix / Security Update (fixed build 6.6.141.1-1)
https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade — None Available / CBL-Mariner Releases

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`307c897db762d1e0feee9477276b08f6deca4a5b` (affected), `307c897db762d1e0feee9477276b08f6deca4a5b` (affected), `307c897db762d1e0feee9477276b08f6deca4a5b` (affected), `307c897db762d1e0feee9477276b08f6deca4a5b` (affected), `307c897db762d1e0feee9477276b08f6deca4a5b` (affected)	—
Linux	Linux	`5.19` (affected), `0` (unaffected), `6.6.140` (unaffected), `6.12.86` (unaffected), `6.18.27` (unaffected), `7.0.4` (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.

MITRE references (1) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://git.kernel.org/stable/c/c7c40c3e7b9fb900504aa746de3e53c5275b24bd

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.

None Available msrc
MSRC update guide: CVE-2026-45996 msrc
https://git.kernel.org/stable/c/aa9025a498036b6012769f7af36d421385386c17 tenable:git.kernel.org
https://git.kernel.org/stable/c/f99165ef067723221472ce1aff632bc74f562643 tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-45996 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-45996 tenable:www.cve.org
https://git.kernel.org/stable/c/132e47030b0b5e398e0da6c59df5a5dae9b52cff tenable:git.kernel.org
https://www.first.org/epss/ tenable:www.first.org
https://git.kernel.org/stable/c/1c78c2002380a1fe31bfb01a3d5f29809e55a096 tenable:git.kernel.org
https://git.kernel.org/stable/c/385a330083f8dd47c15b02e9a83aef9234a37003 tenable:git.kernel.org

NVD-tagged references (6)

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

https://git.kernel.org/stable/c/132e47030b0b5e398e0da6c59df5a5dae9b52cff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/1c78c2002380a1fe31bfb01a3d5f29809e55a096 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/385a330083f8dd47c15b02e9a83aef9234a37003 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/aa9025a498036b6012769f7af36d421385386c17 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/f99165ef067723221472ce1aff632bc74f562643 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/c7c40c3e7b9fb900504aa746de3e53c5275b24bd 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remediations (15)

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

Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review

web:blog.qualys.com

May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…

2026-06-04 00:14 UTC
CISA Warns of Exploited Microsoft Defender 0-Day Flaws

web:cyberpress.org

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

2026-06-04 00:14 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 00:14 UTC
2026 Catalog Release History - Patch My PC

web:patchmypc.com

You can find the production release history below for 2026 . View the 2025 Catalog Release History.

2026-06-04 00:14 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 00:14 UTC
Portal for ArcGIS Security 2026 Update 1 Patch - Esri Support

web:support.esri.com

The C version of this patch also includes additional bug fixes not related to security, refer to the updated Issues Addressed with this Patch section for the latest details. April 20, 2026 : The 11.4 version of the Portal for ArcGIS Security 2026 Update 1 Patch is now available.

2026-06-04 00:14 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 00:14 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 00:14 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-06-04 00:14 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 00:14 UTC
Microsoft patches two zero-day flaws in Defender - CSO Online

web:www.csoonline.com

Microsoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or ...

2026-06-19 02:27 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 02:27 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 02:27 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 02:27 UTC
Patch Tuesday - June 2026 - Rapid7

web:www.rapid7.com

Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.

2026-06-19 02:27 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-45996.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-imx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f99165ef067723221472ce1aff632bc74f562643",
              "status": "affected",
              "version": "307c897db762d1e0feee9477276b08f6deca4a5b",
              "versionType": "git"
            },
            {
              "lessThan": "385a330083f8dd47c15b02e9a83aef9234a37003",
              "status": "affected",
              "version": "307c897db762d1e0feee9477276b08f6deca4a5b",
              "versionType": "git"
            },
            {
              "lessThan": "132e47030b0b5e398e0da6c59df5a5dae9b52cff",
              "status": "affected",
              "version": "307c897db762d1e0feee9477276b08f6deca4a5b",
              "versionType": "git"
            },
            {
              "lessThan": "aa9025a498036b6012769f7af36d421385386c17",
              "status": "affected",
              "version": "307c897db762d1e0feee9477276b08f6deca4a5b",
              "versionType": "git"
            },
            {
              "lessThan": "1c78c2002380a1fe31bfb01a3d5f29809e55a096",
              "status": "affected",
              "version": "307c897db762d1e0feee9477276b08f6deca4a5b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-imx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.86",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.27",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.4",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc1",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: imx: fix use-after-free on unbind\n\nThe SPI subsystem frees the controller and any subsystem allocated\ndriver data as part of deregistration (unless the allocation is device\nmanaged).\n\nTake another reference before deregistering the controller so that the\ndriver data is not freed until the driver is done with it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:55:50.195Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f99165ef067723221472ce1aff632bc74f562643"
        },
        {
          "url": "https://git.kernel.org/stable/c/385a330083f8dd47c15b02e9a83aef9234a37003"
        },
        {
          "url": "https://git.kernel.org/stable/c/132e47030b0b5e398e0da6c59df5a5dae9b52cff"
        },
        {
          "url": "https://git.kernel.org/stable/c/aa9025a498036b6012769f7af36d421385386c17"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c78c2002380a1fe31bfb01a3d5f29809e55a096"
        }
      ],
      "title": "spi: imx: fix use-after-free on unbind",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45996",
    "datePublished": "2026-05-27T12:55:50.195Z",
    "dateReserved": "2026-05-13T15:03:33.091Z",
    "dateUpdated": "2026-05-27T12:55:50.195Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}