CVE-2026-93205

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3: Manage teardown with devm arm_smmu_device_remove() manually frees the IOPF queue, destroys the vmid_map and disables the device, while the IRQs and queues are devm managed. devm unwinds only after remove() returns, so the cleanup runs in the wrong order. The IOPF queue is freed before the event-queue IRQ whose handler uses it. Manage all of it with devm so the unwind order is correct. Free the IOPF queue and vmid_map via devm actions, and disable the device from one registered after arm_smmu_device_reset(). This is also a prerequisite for fixing a Tegra241 CMDQV CMD_SYNC use-after-free in the subsequent patch.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: —
CVSS score: —
CVSS vector: —
Effective score: no score available from CNA, NVD, or AI yet
CWE(s): —
Reserved: 2026-09-17
Published: 2026-09-24 15:10 UTC
Last updated: 2026-09-25 12:42 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/93xxx/CVE-2026-93205.json

AI-forensic CVSS estimate

Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.

No AI estimate yet — it runs automatically once NVD has been checked, or click the button 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-2026-85934
Assigner: Linux
Published: Sep 24, 2026, 3:10:28 PM
Updated: Sep 24, 2026, 3:10:28 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.0000
Vendors: Linux
Products: Linux (0 <7.2.4)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2bd22a0d40503a65d243b011de146603c8ce1cbc)

Linux (0 <6.12.109)

Linux (patch: 6.18.50)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <981686f4137760a16a03c5193f11d85133533f93)

Linux (0 <6.18.50)

Linux (patch: 7.3-rc1)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2235eafda9b3df9295efd0593cd4a8977440c3f6)

Linux (patch: 7.2.4)

Linux (patch: 6.12.109)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <78fd5a2d65f3546cb4285f8e52f445baecbd00e0)
Aliases: GHSA-7g45-qp7m-q8xg

ENISA description: In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3: Manage teardown with devm arm_smmu_device_remove() manually frees the IOPF queue, destroys the vmid_map and disables the device, while the IRQs and queues are devm managed. devm unwinds only after remove() returns, so the cleanup runs in the wrong order. The IOPF queue is freed before the event-queue IRQ whose handler uses it. Manage all of it with devm so the unwind order is correct. Free the IOPF queue and vmid_map via devm actions, and disable the device from one registered after arm_smmu_device_reset(). This is also a prerequisite for fixing a Tegra241 CMDQV CMD_SYNC use-after-free in the subsequent patch.

EUVD references (4)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`395ad89d11fd93f79a6b942e91fc409807a63c4b` (affected), `395ad89d11fd93f79a6b942e91fc409807a63c4b` (affected), `395ad89d11fd93f79a6b942e91fc409807a63c4b` (affected), `395ad89d11fd93f79a6b942e91fc409807a63c4b` (affected)	—
Linux	Linux	`5.14` (affected), `0` (unaffected), `6.12.109` (unaffected), `6.18.50` (unaffected), `7.2.4` (unaffected), `7.3-rc1` (unaffected)	—

Vendor references (4)

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

Web references (0)

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

No web references attached yet.

Remediations (10)

Adobe Security Bulletins and Advisories | Security

web:helpx.adobe.com

This page contains important information regarding security vulnerabilities that could affect specific versions of Adobe products. Use this information to take the prescribed corrective actions.

2026-09-25 10:45 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-09-25 10:45 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-25 10:45 UTC
SAP Security Patch Day - June 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.

2026-09-25 10:45 UTC
September 2026 Patch Tuesday: CISO Executive Summary

web:www.action1.com

This CISO-focused summary highlights the vulnerabilities and critical infrastructure risks that should take priority for remediation following Microsoft's September 2026 Patch Tuesday release.

2026-09-25 10:45 UTC
What Is CVE Remediation in 2026? - aikido.dev

web:www.aikido.dev

CVE remediation is fixing known flaws in the software you run. Why upgrading often fails, what remediation actually involves, and how backporting fixes it.

2026-09-25 10:45 UTC
Security Bulletin: Vulnerabilities have been identified in ... - IBM

web:www.ibm.com

WebSphere Application Server is shipped as a component of WebSphere Service Registry and Repository. Information about multiple vulnerabilities affecting WebSphere Application Server have been published in security bulletins.

2026-09-25 10:45 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-25 10:45 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-25 10:45 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

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

2026-09-25 10:45 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2026-93205.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "981686f4137760a16a03c5193f11d85133533f93",
              "status": "affected",
              "version": "395ad89d11fd93f79a6b942e91fc409807a63c4b",
              "versionType": "git"
            },
            {
              "lessThan": "2235eafda9b3df9295efd0593cd4a8977440c3f6",
              "status": "affected",
              "version": "395ad89d11fd93f79a6b942e91fc409807a63c4b",
              "versionType": "git"
            },
            {
              "lessThan": "78fd5a2d65f3546cb4285f8e52f445baecbd00e0",
              "status": "affected",
              "version": "395ad89d11fd93f79a6b942e91fc409807a63c4b",
              "versionType": "git"
            },
            {
              "lessThan": "2bd22a0d40503a65d243b011de146603c8ce1cbc",
              "status": "affected",
              "version": "395ad89d11fd93f79a6b942e91fc409807a63c4b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3: Manage teardown with devm\n\narm_smmu_device_remove() manually frees the IOPF queue, destroys the\nvmid_map and disables the device, while the IRQs and queues are devm\nmanaged. devm unwinds only after remove() returns, so the cleanup runs\nin the wrong order. The IOPF queue is freed before the event-queue IRQ\nwhose handler uses it.\n\nManage all of it with devm so the unwind order is correct. Free the IOPF\nqueue and vmid_map via devm actions, and disable the device from one\nregistered after arm_smmu_device_reset().\n\nThis is also a prerequisite for fixing a Tegra241 CMDQV CMD_SYNC\nuse-after-free in the subsequent patch."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T12:42:34.861Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/981686f4137760a16a03c5193f11d85133533f93"
        },
        {
          "url": "https://git.kernel.org/stable/c/2235eafda9b3df9295efd0593cd4a8977440c3f6"
        },
        {
          "url": "https://git.kernel.org/stable/c/78fd5a2d65f3546cb4285f8e52f445baecbd00e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/2bd22a0d40503a65d243b011de146603c8ce1cbc"
        }
      ],
      "title": "iommu/arm-smmu-v3: Manage teardown with devm",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93205",
    "datePublished": "2026-09-24T15:10:28.406Z",
    "dateReserved": "2026-09-17T16:02:15.093Z",
    "dateUpdated": "2026-09-25T12:42:34.861Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}