github - ghsa-f4hh-m2gg-974r

ghsa-f4hh-m2gg-974r

Vulnerability from github

Published

2025-12-07 00:30

Modified

2025-12-07 00:30

Details

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

drm/panthor: Flush shmem writes before mapping buffers CPU-uncached

The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40276"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-06T22:15:55Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Flush shmem writes before mapping buffers CPU-uncached\n\nThe shmem layer zeroes out the new pages using cached mappings, and if\nwe don\u0027t CPU-flush we might leave dirty cachelines behind, leading to\npotential data leaks and/or asynchronous buffer corruption when dirty\ncachelines are evicted.",
  "id": "GHSA-f4hh-m2gg-974r",
  "modified": "2025-12-07T00:30:56Z",
  "published": "2025-12-07T00:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40276"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/576c930e5e7dcb937648490611a83f1bf0171048"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a12f9c96d06b145562f76ffb20369b4692f0911"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-40276 (GCVE-0-2025-40276)

Vulnerability from cvelistv5

Published

2025-12-06 21:50

Modified

2025-12-06 21:50

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.

References

URL

Tags

	https://git.kernel.org/stable/c/7a12f9c96d06b145562f76ffb20369b4692f0911
	https://git.kernel.org/stable/c/576c930e5e7dcb937648490611a83f1bf0171048

Impacted products

Vendor

Product

Version

Version: 8a1cc07578bf42d85f008316873d710ff684dd29
Version: 8a1cc07578bf42d85f008316873d710ff684dd29

Version: 6.10

Show details on NVD website

To clipboard

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  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panthor/panthor_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7a12f9c96d06b145562f76ffb20369b4692f0911",
              "status": "affected",
              "version": "8a1cc07578bf42d85f008316873d710ff684dd29",
              "versionType": "git"
            },
            {
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panthor/panthor_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
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              "version": "0",
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            },
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              "version": "6.17.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.9",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.10",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Flush shmem writes before mapping buffers CPU-uncached\n\nThe shmem layer zeroes out the new pages using cached mappings, and if\nwe don\u0027t CPU-flush we might leave dirty cachelines behind, leading to\npotential data leaks and/or asynchronous buffer corruption when dirty\ncachelines are evicted."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-06T21:50:59.035Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/7a12f9c96d06b145562f76ffb20369b4692f0911"
        },
        {
          "url": "https://git.kernel.org/stable/c/576c930e5e7dcb937648490611a83f1bf0171048"
        }
      ],
      "title": "drm/panthor: Flush shmem writes before mapping buffers CPU-uncached",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40276",
    "datePublished": "2025-12-06T21:50:59.035Z",
    "dateReserved": "2025-04-16T07:20:57.184Z",
    "dateUpdated": "2025-12-06T21:50:59.035Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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