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CVE-2025-38114

Estado: AnalizadaMedia (5.5)—

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

e1000: Move cancel_work_sync to avoid deadlock

Previously, e1000_down called cancel_work_sync for the e1000 reset task (via e1000_down_and_stop), which takes RTNL.

As reported by users and syzbot, a deadlock is possible in the following scenario:

To remedy this, avoid calling cancel_work_sync from e1000_down (e1000_reset_task does nothing if the device is down anyway). Instead, call cancel_work_sync for e1000_reset_task when the device is being removed.

Detalles técnicos trazas, registros y código del informe original
CPU 0:
  - RTNL is held
  - e1000_close
  - e1000_down
  - cancel_work_sync (cancel / wait for e1000_reset_task())

CPU 1:
  - process_one_work
  - e1000_reset_task
  - take RTNL

CVSS

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)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-38114",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "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": "e400c7444d84b0fd2ebb34e618f83abe05917543",
              "lessThan": "1fd4438ddcc4958ed24662d5125114299e19bae4",
              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/intel/e1000/e1000_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/intel/e1000/e1000_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-07-03T09:15:25.227",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1fd4438ddcc4958ed24662d5125114299e19bae4",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b4a8085ceefb7bbb12c2b71c55e71fc946c6929f",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ne1000: Move cancel_work_sync to avoid deadlock\n\nPreviously, e1000_down called cancel_work_sync for the e1000 reset task\n(via e1000_down_and_stop), which takes RTNL.\n\nAs reported by users and syzbot, a deadlock is possible in the following\nscenario:\n\nCPU 0:\n  - RTNL is held\n  - e1000_close\n  - e1000_down\n  - cancel_work_sync (cancel / wait for e1000_reset_task())\n\nCPU 1:\n  - process_one_work\n  - e1000_reset_task\n  - take RTNL\n\nTo remedy this, avoid calling cancel_work_sync from e1000_down\n(e1000_reset_task does nothing if the device is down anyway). Instead,\ncall cancel_work_sync for e1000_reset_task when the device is being\nremoved."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: e1000: mover cancel_work_sync para evitar el interbloqueo Anteriormente, e1000_down llamaba a cancel_work_sync para la tarea de reinicio de e1000 (a través de e1000_down_and_stop), que toma RTNL. Según lo informado por los usuarios y syzbot, es posible que se produzca un interbloqueo en el siguiente escenario: CPU 0: - Se mantiene RTNL - e1000_close - e1000_down - cancel_work_sync (cancelar/esperar a e1000_reset_task()) CPU 1: - process_one_work - e1000_reset_task - tomar RTNL Para remediar esto, evite llamar a cancel_work_sync desde e1000_down (e1000_reset_task no hace nada si el dispositivo está inactivo de todos modos). En su lugar, llame a cancel_work_sync para e1000_reset_task cuando se esté quitando el dispositivo."
    }
  ],
  "lastModified": "2026-06-17T09:16:05.010",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0541C761-BD5E-4C1A-8432-83B375D7EB92",
              "versionEndExcluding": "6.15.3",
              "versionStartIncluding": "6.13"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}