github - ghsa-75g2-7r3j-m79g

GHSA-75G2-7R3J-M79G

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 18:31

Details

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

x86/fred: Fix system hang during S4 resume with FRED enabled

Upon a wakeup from S4, the restore kernel starts and initializes the FRED MSRs as needed from its perspective. It then loads a hibernation image, including the image kernel, and attempts to load image pages directly into their original page frames used before hibernation unless those frames are currently in use. Once all pages are moved to their original locations, it jumps to a "trampoline" page in the image kernel.

At this point, the image kernel takes control, but the FRED MSRs still contain values set by the restore kernel, which may differ from those set by the image kernel before hibernation. Therefore, the image kernel must ensure the FRED MSRs have the same values as before hibernation. Since these values depend only on the location of the kernel text and data, they can be recomputed from scratch.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38047"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T10:15:37Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/fred: Fix system hang during S4 resume with FRED enabled\n\nUpon a wakeup from S4, the restore kernel starts and initializes the\nFRED MSRs as needed from its perspective.  It then loads a hibernation\nimage, including the image kernel, and attempts to load image pages\ndirectly into their original page frames used before hibernation unless\nthose frames are currently in use.  Once all pages are moved to their\noriginal locations, it jumps to a \"trampoline\" page in the image kernel.\n\nAt this point, the image kernel takes control, but the FRED MSRs still\ncontain values set by the restore kernel, which may differ from those\nset by the image kernel before hibernation.  Therefore, the image kernel\nmust ensure the FRED MSRs have the same values as before hibernation.\nSince these values depend only on the location of the kernel text and\ndata, they can be recomputed from scratch.",
  "id": "GHSA-75g2-7r3j-m79g",
  "modified": "2025-11-14T18:31:22Z",
  "published": "2025-06-18T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38047"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c42f740a07eea4807e98d2d8febc549c957a7b49"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7090fe75a2826363c71ad1fb4e95e58141478df"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-38047 (GCVE-0-2025-38047)

Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2025-07-15 15:43

Title

x86/fred: Fix system hang during S4 resume with FRED enabled

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/fred: Fix system hang during S4 resume with FRED enabled Upon a wakeup from S4, the restore kernel starts and initializes the FRED MSRs as needed from its perspective. It then loads a hibernation image, including the image kernel, and attempts to load image pages directly into their original page frames used before hibernation unless those frames are currently in use. Once all pages are moved to their original locations, it jumps to a "trampoline" page in the image kernel. At this point, the image kernel takes control, but the FRED MSRs still contain values set by the restore kernel, which may differ from those set by the image kernel before hibernation. Therefore, the image kernel must ensure the FRED MSRs have the same values as before hibernation. Since these values depend only on the location of the kernel text and data, they can be recomputed from scratch.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c42f740a07eea4807…
	https://git.kernel.org/stable/c/e7090fe75a2826363…
	https://git.kernel.org/stable/c/e5f1e8af9c9e151ec…

Impacted products

Vendor

Product

Version

Linux

Affected: ff45746fbf005f96e42bea466698e3fdbf926013 , < c42f740a07eea4807e98d2d8febc549c957a7b49 (git)
Affected: ff45746fbf005f96e42bea466698e3fdbf926013 , < e7090fe75a2826363c71ad1fb4e95e58141478df (git)
Affected: ff45746fbf005f96e42bea466698e3fdbf926013 , < e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110 (git)

Linux

Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.31 , ≤ 6.12.* (semver)
Unaffected: 6.14.9 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/power/cpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c42f740a07eea4807e98d2d8febc549c957a7b49",
              "status": "affected",
              "version": "ff45746fbf005f96e42bea466698e3fdbf926013",
              "versionType": "git"
            },
            {
              "lessThan": "e7090fe75a2826363c71ad1fb4e95e58141478df",
              "status": "affected",
              "version": "ff45746fbf005f96e42bea466698e3fdbf926013",
              "versionType": "git"
            },
            {
              "lessThan": "e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110",
              "status": "affected",
              "version": "ff45746fbf005f96e42bea466698e3fdbf926013",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/power/cpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.31",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.31",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.9",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/fred: Fix system hang during S4 resume with FRED enabled\n\nUpon a wakeup from S4, the restore kernel starts and initializes the\nFRED MSRs as needed from its perspective.  It then loads a hibernation\nimage, including the image kernel, and attempts to load image pages\ndirectly into their original page frames used before hibernation unless\nthose frames are currently in use.  Once all pages are moved to their\noriginal locations, it jumps to a \"trampoline\" page in the image kernel.\n\nAt this point, the image kernel takes control, but the FRED MSRs still\ncontain values set by the restore kernel, which may differ from those\nset by the image kernel before hibernation.  Therefore, the image kernel\nmust ensure the FRED MSRs have the same values as before hibernation.\nSince these values depend only on the location of the kernel text and\ndata, they can be recomputed from scratch."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-15T15:43:55.220Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c42f740a07eea4807e98d2d8febc549c957a7b49"
        },
        {
          "url": "https://git.kernel.org/stable/c/e7090fe75a2826363c71ad1fb4e95e58141478df"
        },
        {
          "url": "https://git.kernel.org/stable/c/e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110"
        }
      ],
      "title": "x86/fred: Fix system hang during S4 resume with FRED enabled",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38047",
    "datePublished": "2025-06-18T09:33:30.742Z",
    "dateReserved": "2025-04-16T04:51:23.979Z",
    "dateUpdated": "2025-07-15T15:43:55.220Z",
    "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-75G2-7R3J-M79G

CVE-2025-38047 (GCVE-0-2025-38047)

Tags

Sightings

Nomenclature