FKIE_CVE-2025-68733

Vulnerability from fkie_nvd - Published: 2025-12-24 11:16 - Updated: 2026-06-17 09:59
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: smack: fix bug: unprivileged task can create labels If an unprivileged task is allowed to relabel itself (/smack/relabel-self is not empty), it can freely create new labels by writing their names into own /proc/PID/attr/smack/current This occurs because do_setattr() imports the provided label in advance, before checking "relabel-self" list. This change ensures that the "relabel-self" list is checked before importing the label.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a7a7621619a366712fb9cefcb6e69f956c247ce
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60e8d49989410a7ade60f5dadfcd979c117d05c0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64aa81250171b6bb6803e97ea7a5d73bfa061f6e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b1e45e13546c9ea0b1d99097993ac0aafae90b1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac9fce2efabad37c338aac86fbe100f77a080e59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c147e13ea7fe9f118f8c9ba5e96cbd644b00d6b3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c80173233014a360c13fa5cc79d36bfe6e53a8ed
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8fd5491100f920847a3338d5fba22db19c72773
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "security/smack/smack_lsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c80173233014a360c13fa5cc79d36bfe6e53a8ed",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "6b1e45e13546c9ea0b1d99097993ac0aafae90b1",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "4a7a7621619a366712fb9cefcb6e69f956c247ce",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "f8fd5491100f920847a3338d5fba22db19c72773",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "ac9fce2efabad37c338aac86fbe100f77a080e59",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "64aa81250171b6bb6803e97ea7a5d73bfa061f6e",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "60e8d49989410a7ade60f5dadfcd979c117d05c0",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            },
            {
              "lessThan": "c147e13ea7fe9f118f8c9ba5e96cbd644b00d6b3",
              "status": "affected",
              "version": "38416e53936ecf896948fdeffc36b76979117952",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "security/smack/smack_lsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.248",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmack: fix bug: unprivileged task can create labels\n\nIf an unprivileged task is allowed to relabel itself\n(/smack/relabel-self is not empty),\nit can freely create new labels by writing their\nnames into own /proc/PID/attr/smack/current\n\nThis occurs because do_setattr() imports\nthe provided label in advance,\nbefore checking \"relabel-self\" list.\n\nThis change ensures that the \"relabel-self\" list\nis checked before importing the label."
    }
  ],
  "id": "CVE-2025-68733",
  "lastModified": "2026-06-17T09:59:29.853",
  "metrics": {},
  "published": "2025-12-24T11:16:02.600",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a7a7621619a366712fb9cefcb6e69f956c247ce"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60e8d49989410a7ade60f5dadfcd979c117d05c0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/64aa81250171b6bb6803e97ea7a5d73bfa061f6e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6b1e45e13546c9ea0b1d99097993ac0aafae90b1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ac9fce2efabad37c338aac86fbe100f77a080e59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c147e13ea7fe9f118f8c9ba5e96cbd644b00d6b3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c80173233014a360c13fa5cc79d36bfe6e53a8ed"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f8fd5491100f920847a3338d5fba22db19c72773"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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