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CVE-2026-72177

Estado: RecibidaSin puntuar—

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

mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()

Patch series "mm/damon/sysfs-schemes: fix wrong directories put orders in error paths".

Error paths of damon_sysfs_access_pattern_add_dirs() and damon_sysfs_scheme_add_dirs() functions put references to directories in wrong orders. As a result, uninitialized memory dereference and/or memory leak can happen. Fix those.

This patch (of 2):

In access_pattern_add_dirs(), error handling path puts references starting from setup failed directories.

Leer descripción completaMostrar menos

If the failure happpened from the initial allication in the setup functions, uninitialized memory dereference happen. The allocation failures will not commonly happen, but the consequence is quite bad. Fix the wrong reference put orders.

The issue was discovered [1] by Sashiko.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-72177",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7e84b1f8212a038ebeee06de56db7181148fa0cd",
              "lessThan": "0710cc97962ca3bcabaa15ce7fead300faf726cd",
              "versionType": "git"
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            {
              "status": "affected",
              "version": "7e84b1f8212a038ebeee06de56db7181148fa0cd",
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              "versionType": "git"
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              "lessThan": "e03442b0c48bdb034f5b7cf9f3b76d8025576071",
              "versionType": "git"
            },
            {
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            {
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              "versionType": "git"
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            {
              "status": "affected",
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "mm/damon/sysfs-schemes.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "mm/damon/sysfs-schemes.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:35.937",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0710cc97962ca3bcabaa15ce7fead300faf726cd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a8c0592a80e954825f2ba29e7f32893f1df762f2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d58fdbe37a829fd2e5803dd4e5a72992dd8c5368",
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    },
    {
      "url": "https://git.kernel.org/stable/c/e03442b0c48bdb034f5b7cf9f3b76d8025576071",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/ee59df7a886a35113f309e3eb791060c46f79bb1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f18c561eb9c51f1ba3adb6117926a98a66599848",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()\n\nPatch series \"mm/damon/sysfs-schemes: fix wrong directories put orders in\nerror paths\".\n\nError paths of damon_sysfs_access_pattern_add_dirs() and\ndamon_sysfs_scheme_add_dirs() functions put references to directories in\nwrong orders.  As a result, uninitialized memory dereference and/or\nmemory leak can happen.  Fix those.\n\n\nThis patch (of 2):\n\nIn access_pattern_add_dirs(), error handling path puts references starting\nfrom setup failed directories.  If the failure happpened from the initial\nallication in the setup functions, uninitialized memory dereference\nhappen.  The allocation failures will not commonly happen, but the\nconsequence is quite bad.  Fix the wrong reference put orders.\n\nThe issue was discovered [1] by Sashiko."
    }
  ],
  "lastModified": "2026-08-17T06:18:18.213",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}