github - ghsa-mpc5-232j-wwmm

GHSA-MPC5-232J-WWMM

Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-02-27 21:32

Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/arm-smmu-v3-sva: Fix mm use-after-free

We currently call arm64_mm_context_put() without holding a reference to the mm, which can result in use-after-free. Call mmgrab()/mmdrop() to ensure the mm only gets freed after we unpinned the ASID.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49426"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:19Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3-sva: Fix mm use-after-free\n\nWe currently call arm64_mm_context_put() without holding a reference to\nthe mm, which can result in use-after-free. Call mmgrab()/mmdrop() to\nensure the mm only gets freed after we unpinned the ASID.",
  "id": "GHSA-mpc5-232j-wwmm",
  "modified": "2025-02-27T21:32:14Z",
  "published": "2025-02-27T21:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49426"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9aa215450888cf29af0c479e14a712dc6b0c506c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cbd23144f7662b00bcde32a938c4a4057e476d68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc90f13ea0dcd960e5002d204fa55cec4e0db2fa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49426 (GCVE-0-2022-49426)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2025-05-04 08:37

Summary

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3-sva: Fix mm use-after-free We currently call arm64_mm_context_put() without holding a reference to the mm, which can result in use-after-free. Call mmgrab()/mmdrop() to ensure the mm only gets freed after we unpinned the ASID.

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-416 - Use After Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/fc90f13ea0dcd960e…
	https://git.kernel.org/stable/c/e3cbbdbff8a4db5d0…
	https://git.kernel.org/stable/c/9aa215450888cf29a…
	https://git.kernel.org/stable/c/cbd23144f7662b00b…

Impacted products

Vendor

Product

Version

Linux

Affected: 32784a9562fb0518b12e9797ee2aec52214adf6f , < fc90f13ea0dcd960e5002d204fa55cec4e0db2fa (git)
Affected: 32784a9562fb0518b12e9797ee2aec52214adf6f , < e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0 (git)
Affected: 32784a9562fb0518b12e9797ee2aec52214adf6f , < 9aa215450888cf29af0c479e14a712dc6b0c506c (git)
Affected: 32784a9562fb0518b12e9797ee2aec52214adf6f , < cbd23144f7662b00bcde32a938c4a4057e476d68 (git)

Linux

Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49426",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-27T18:16:10.824439Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-27T18:22:32.946Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "fc90f13ea0dcd960e5002d204fa55cec4e0db2fa",
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              "version": "32784a9562fb0518b12e9797ee2aec52214adf6f",
              "versionType": "git"
            },
            {
              "lessThan": "e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0",
              "status": "affected",
              "version": "32784a9562fb0518b12e9797ee2aec52214adf6f",
              "versionType": "git"
            },
            {
              "lessThan": "9aa215450888cf29af0c479e14a712dc6b0c506c",
              "status": "affected",
              "version": "32784a9562fb0518b12e9797ee2aec52214adf6f",
              "versionType": "git"
            },
            {
              "lessThan": "cbd23144f7662b00bcde32a938c4a4057e476d68",
              "status": "affected",
              "version": "32784a9562fb0518b12e9797ee2aec52214adf6f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.46",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.14",
                  "versionStartIncluding": "5.11",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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        }
      ],
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu-v3-sva: Fix mm use-after-free\n\nWe currently call arm64_mm_context_put() without holding a reference to\nthe mm, which can result in use-after-free. Call mmgrab()/mmdrop() to\nensure the mm only gets freed after we unpinned the ASID."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:37:24.999Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fc90f13ea0dcd960e5002d204fa55cec4e0db2fa"
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        {
          "url": "https://git.kernel.org/stable/c/e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/9aa215450888cf29af0c479e14a712dc6b0c506c"
        },
        {
          "url": "https://git.kernel.org/stable/c/cbd23144f7662b00bcde32a938c4a4057e476d68"
        }
      ],
      "title": "iommu/arm-smmu-v3-sva: Fix mm use-after-free",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49426",
    "datePublished": "2025-02-26T02:12:47.206Z",
    "dateReserved": "2025-02-26T02:08:31.569Z",
    "dateUpdated": "2025-05-04T08:37:24.999Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MPC5-232J-WWMM

CVE-2022-49426 (GCVE-0-2022-49426)

Tags

Sightings

Nomenclature