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CVE-2026-80820

Estado: RecibidaSin puntuar—

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

xfs: don't livelock in scrub on a circular unlinked list

LOLLM points out that online fsck can livelock if an unlinked inode list contains a loop. Use a bitmap to detect cycles.

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)

Mostrar
{
  "id": "CVE-2026-80820",
  "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": "a12890aebb895951720ff884eab1c99a30645b29",
              "lessThan": "599453f83458b57995290a1d31200c263e2c2691",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a12890aebb895951720ff884eab1c99a30645b29",
              "lessThan": "159d162fe80bd56573cafde5801bd5a90a3dd1ac",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a12890aebb895951720ff884eab1c99a30645b29",
              "lessThan": "56407a61a8bb85b884de802d39635abdb0ea7408",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a12890aebb895951720ff884eab1c99a30645b29",
              "lessThan": "527eaaefddb6ec5c83a06c9a1559960dd6361753",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/xfs/scrub/agheader.c",
            "fs/xfs/scrub/agheader_repair.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.106",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.47",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/xfs/scrub/agheader.c",
            "fs/xfs/scrub/agheader_repair.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-04T16:18:09.743",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/159d162fe80bd56573cafde5801bd5a90a3dd1ac",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/527eaaefddb6ec5c83a06c9a1559960dd6361753",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/56407a61a8bb85b884de802d39635abdb0ea7408",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/599453f83458b57995290a1d31200c263e2c2691",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't livelock in scrub on a circular unlinked list\n\nLOLLM points out that online fsck can livelock if an unlinked inode list\ncontains a loop.  Use a bitmap to detect cycles."
    }
  ],
  "lastModified": "2026-09-04T16:18:09.743",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}