CVE-2026-72364

Estado: RecibidaAlta (7.1)—

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

netfs: Fix writeback error handling

Fix the error handling in writeback_iter() loop. If an error occurs, writeback_iter() needs to be called again with *error set to the error so that it can clean up iteration state. Further, the current folio needs unlocking and redirtying.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Puntuación base: 7.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.17%
Percentil entre todas las CVEs puntuadas: 6
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1565.002 Transmitted Data Manipulationimpact65 %
Impacto secundarioT1499.004 Application or System Exploitationimpact60 %

Acceso local (AV:L) sin interacción (UI:N) en kernel Linux con privilegios (PR:L) permite escalada. El fallo en writeback permite corrupción de datos (I:H) y denegación de servicio (A:H).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Filter Network Traffic Execution Prevention Encrypt Sensitive Information Application Isolation and Sandboxing Exploit Protection

Tecnologías afectadas (1)

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

Linux — Linux Kernel^AI

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-72364",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "288ace2f57c9d06dd2e42bd80d03747d879a4068",
              "lessThan": "fb39ffd3cc5422887fd118668ff45ebfdbc83302",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "288ace2f57c9d06dd2e42bd80d03747d879a4068",
              "lessThan": "1bb33d959aabcde07d724b5eb9992462e91fa79a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "288ace2f57c9d06dd2e42bd80d03747d879a4068",
              "lessThan": "89df9c158a25d0a7c6ca079a9bd9ca7009d75c7b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "288ace2f57c9d06dd2e42bd80d03747d879a4068",
              "lessThan": "ac5f95ac5d6d0f4c567b8b642825705a2bf0d79e",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/netfs/write_issue.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.10",
              "versionType": "semver"
            },
            {
              "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": [
            "fs/netfs/write_issue.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:09.823",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1bb33d959aabcde07d724b5eb9992462e91fa79a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/89df9c158a25d0a7c6ca079a9bd9ca7009d75c7b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac5f95ac5d6d0f4c567b8b642825705a2bf0d79e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fb39ffd3cc5422887fd118668ff45ebfdbc83302",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix writeback error handling\n\nFix the error handling in writeback_iter() loop.  If an error occurs,\nwriteback_iter() needs to be called again with *error set to the error so\nthat it can clean up iteration state.  Further, the current folio needs\nunlocking and redirtying."
    }
  ],
  "lastModified": "2026-08-17T06:18:40.573",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}