github - ghsa-c68j-74mr-g84m

GHSA-C68J-74MR-G84M

Vulnerability from github – Published: 2025-08-22 18:31 – Updated: 2025-11-26 00:30

Details

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

[ceph] parse_longname(): strrchr() expects NUL-terminated string

... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it.

Just get a NUL-terminated copy of the entire thing and be done with that...

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-2025-38660"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-22T16:15:41Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\n[ceph] parse_longname(): strrchr() expects NUL-terminated string\n\n... and parse_longname() is not guaranteed that.  That\u0027s the reason\nwhy it uses kmemdup_nul() to build the argument for kstrtou64();\nthe problem is, kstrtou64() is not the only thing that need it.\n\nJust get a NUL-terminated copy of the entire thing and be done\nwith that...",
  "id": "GHSA-c68j-74mr-g84m",
  "modified": "2025-11-26T00:30:15Z",
  "published": "2025-08-22T18:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38660"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/101841c38346f4ca41dc1802c867da990ffb32eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3145b2b11492d61c512bbc59660bb823bc757f48"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/493479af8af3ab907f49e99323777d498a4fbd2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb80f7618832d26f7e395f52f82b1dac76223e5f"
    }
  ],
  "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-2025-38660 (GCVE-0-2025-38660)

Vulnerability from cvelistv5 – Published: 2025-08-22 16:01 – Updated: 2025-09-29 05:55

Summary

In the Linux kernel, the following vulnerability has been resolved: [ceph] parse_longname(): strrchr() expects NUL-terminated string ... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it. Just get a NUL-terminated copy of the entire thing and be done with that...

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/bb80f7618832d26f7…
	https://git.kernel.org/stable/c/3145b2b11492d61c5…
	https://git.kernel.org/stable/c/493479af8af3ab907…
	https://git.kernel.org/stable/c/101841c38346f4ca4…

Impacted products

Vendor

Product

Version

Linux

Affected: dd66df0053ef84add5e684df517aa9b498342381 , < bb80f7618832d26f7e395f52f82b1dac76223e5f (git)
Affected: dd66df0053ef84add5e684df517aa9b498342381 , < 3145b2b11492d61c512bbc59660bb823bc757f48 (git)
Affected: dd66df0053ef84add5e684df517aa9b498342381 , < 493479af8af3ab907f49e99323777d498a4fbd2b (git)
Affected: dd66df0053ef84add5e684df517aa9b498342381 , < 101841c38346f4ca41dc1802c867da990ffb32eb (git)

Linux

Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ceph/crypto.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bb80f7618832d26f7e395f52f82b1dac76223e5f",
              "status": "affected",
              "version": "dd66df0053ef84add5e684df517aa9b498342381",
              "versionType": "git"
            },
            {
              "lessThan": "3145b2b11492d61c512bbc59660bb823bc757f48",
              "status": "affected",
              "version": "dd66df0053ef84add5e684df517aa9b498342381",
              "versionType": "git"
            },
            {
              "lessThan": "493479af8af3ab907f49e99323777d498a4fbd2b",
              "status": "affected",
              "version": "dd66df0053ef84add5e684df517aa9b498342381",
              "versionType": "git"
            },
            {
              "lessThan": "101841c38346f4ca41dc1802c867da990ffb32eb",
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ceph/crypto.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.42",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
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              "negate": false,
              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\n[ceph] parse_longname(): strrchr() expects NUL-terminated string\n\n... and parse_longname() is not guaranteed that.  That\u0027s the reason\nwhy it uses kmemdup_nul() to build the argument for kstrtou64();\nthe problem is, kstrtou64() is not the only thing that need it.\n\nJust get a NUL-terminated copy of the entire thing and be done\nwith that..."
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      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:55:44.132Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/101841c38346f4ca41dc1802c867da990ffb32eb"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38660",
    "datePublished": "2025-08-22T16:01:03.686Z",
    "dateReserved": "2025-04-16T04:51:24.031Z",
    "dateUpdated": "2025-09-29T05:55:44.132Z",
    "state": "PUBLISHED"
  },
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  "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-C68J-74MR-G84M

CVE-2025-38660 (GCVE-0-2025-38660)

Tags

Sightings

Nomenclature