FKIE_CVE-2026-72015

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-23 13:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list A pseudo-locked group's RMID is freed when it is created. On unmount rmdir_all_sub() unconditionally frees all RMID of all groups, resulting in a double-free of the pseudo-locked group's RMID. The consequence of this is that the original free results in the pseudo-locked group's RMID being added to the rmid_free_lru linked list and the second free then attempts to add the same RMID entry to the rmid_free_lru again. Do not double-free a pseudo-locked group's RMID.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/52b769165f20b38092f28ce064b4b143471540a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9168176894332312c12ef052e784735dbf4ffe3f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9f089723aee892efc77c349ae47a6b452b293c4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7628eea9212e185a09df3aea603ca8580b8678d
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/resctrl/rdtgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bab7dbba38ed3011972c3d9be2dcdca7575cbe32",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "ad12e70d7dc3c94a05efc61d1e4861078e0e162b",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "52b769165f20b38092f28ce064b4b143471540a7",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "9168176894332312c12ef052e784735dbf4ffe3f",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "b2fe9e140aa94b2816aab7ebc692b543e418f5e3",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "52007bfdce5310e8c8a29849bfbfb188a1e50ca0",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "f7628eea9212e185a09df3aea603ca8580b8678d",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            },
            {
              "lessThan": "b9f089723aee892efc77c349ae47a6b452b293c4",
              "status": "affected",
              "version": "e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/resctrl/rdtgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.266",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.217",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\nfs/resctrl: Fix double-add of pseudo-locked region\u0027s RMID to free list\n\nA pseudo-locked group\u0027s RMID is freed when it is created. On unmount\nrmdir_all_sub() unconditionally frees all RMID of all groups, resulting\nin a double-free of the pseudo-locked group\u0027s RMID. The consequence of this\nis that the original free results in the pseudo-locked group\u0027s RMID being\nadded to the rmid_free_lru linked list and the second free then attempts\nto add the same RMID entry to the rmid_free_lru again.\n\nDo not double-free a pseudo-locked group\u0027s RMID."
    }
  ],
  "id": "CVE-2026-72015",
  "lastModified": "2026-08-23T13:16:37.230",
  "metrics": {},
  "published": "2026-08-15T06:21:00.307",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/52b769165f20b38092f28ce064b4b143471540a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9168176894332312c12ef052e784735dbf4ffe3f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b9f089723aee892efc77c349ae47a6b452b293c4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f7628eea9212e185a09df3aea603ca8580b8678d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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