« Volver al listado

CVE-2023-54100

Estado: AplazadaAlta (7.8)—

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

scsi: qedi: Fix use after free bug in qedi_remove()

In qedi_probe() we call __qedi_probe() which initializes &qedi->recovery_work with qedi_recovery_handler() and &qedi->board_disable_work with qedi_board_disable_work().

When qedi_schedule_recovery_handler() is called, schedule_delayed_work() will finally start the work.

In qedi_remove(), which is called to remove the driver, the following sequence may be observed:

Fix this by finishing the work before cleanup in qedi_remove().

CPU0 CPU1

Cancel recovery_work and board_disable_work in __qedi_remove().

Detalles técnicos trazas, registros y código del informe original
                     |qedi_recovery_handler
qedi_remove          |
  __qedi_remove      |
iscsi_host_free      |
scsi_host_put        |
//free shost         |
                     |iscsi_host_for_each_session
                     |//use qedi->shost

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad de use-after-free en controlador Linux (acceso local, PR:L) que permite denegación de servicio por lectura de memoria liberada en qedi_recovery_handler().

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 ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

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-2023-54100",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "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": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
              "lessThan": "fa19c533ab19161298f0780bcc6523af88f6fd20",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
              "lessThan": "5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
              "lessThan": "3738a230831e861503119ee2691c4a7dc56ed60a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
              "lessThan": "89f6023fc321c958a0fb11f143a6eb4544ae3940",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
              "lessThan": "124027cd1a624ce0347adcd59241a9966a726b22",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
              "lessThan": "c5749639f2d0a1f6cbe187d05f70c2e7c544d748",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/scsi/qedi/qedi_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": "5.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.180",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.112",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.29",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.16",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/scsi/qedi/qedi_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-24T13:16:11.890",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/124027cd1a624ce0347adcd59241a9966a726b22",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3738a230831e861503119ee2691c4a7dc56ed60a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/89f6023fc321c958a0fb11f143a6eb4544ae3940",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c5749639f2d0a1f6cbe187d05f70c2e7c544d748",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fa19c533ab19161298f0780bcc6523af88f6fd20",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedi: Fix use after free bug in qedi_remove()\n\nIn qedi_probe() we call __qedi_probe() which initializes\n&qedi->recovery_work with qedi_recovery_handler() and\n&qedi->board_disable_work with qedi_board_disable_work().\n\nWhen qedi_schedule_recovery_handler() is called, schedule_delayed_work()\nwill finally start the work.\n\nIn qedi_remove(), which is called to remove the driver, the following\nsequence may be observed:\n\nFix this by finishing the work before cleanup in qedi_remove().\n\nCPU0                  CPU1\n\n                     |qedi_recovery_handler\nqedi_remove          |\n  __qedi_remove      |\niscsi_host_free      |\nscsi_host_put        |\n//free shost         |\n                     |iscsi_host_for_each_session\n                     |//use qedi->shost\n\nCancel recovery_work and board_disable_work in __qedi_remove()."
    }
  ],
  "lastModified": "2026-08-04T10:19:29.303",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}