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CVE-2023-54268

Estado: AplazadaSin puntuar—

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

debugobjects: Don't wake up kswapd from fill_pool()

syzbot is reporting a lockdep warning in fill_pool() because the allocation from debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM) and therefore tries to wake up kswapd, which acquires kswapd_wait::lock.

Since fill_pool() might be called with arbitrary locks held, fill_pool() should not assume that acquiring kswapd_wait::lock is safe.

Use __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for !__GFP_DIRECT_RECLAIM allocation.

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-2023-54268",
  "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": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "lessThan": "be646802b3dc408c4dc72a3ac32c3f4a0282414d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "lessThan": "fd673079749bac97bb30f1461df079e6c8e86511",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "lessThan": "aee97eec77029270866c704f66cdf2881cbd2fe1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "lessThan": "d7fff52c99d52f180d8bef95d8ed8fec6343889c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "lessThan": "4c088d30a72d9b8f9c6ae9362222942e4075cb00",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "lessThan": "eb799279fb1f9c63c520fe8c1c41cb9154252db6",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "lib/debugobjects.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.26"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.26",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.4.244",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.181",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.114",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.31",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.3.5",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "lib/debugobjects.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-30T13:16:15.623",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4c088d30a72d9b8f9c6ae9362222942e4075cb00",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d7fff52c99d52f180d8bef95d8ed8fec6343889c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eb799279fb1f9c63c520fe8c1c41cb9154252db6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fd673079749bac97bb30f1461df079e6c8e86511",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Don't wake up kswapd from fill_pool()\n\nsyzbot is reporting a lockdep warning in fill_pool() because the allocation\nfrom debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM)\nand therefore tries to wake up kswapd, which acquires kswapd_wait::lock.\n\nSince fill_pool() might be called with arbitrary locks held, fill_pool()\nshould not assume that acquiring kswapd_wait::lock is safe.\n\nUse __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for\n!__GFP_DIRECT_RECLAIM allocation."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndebugobjects: No despertar a kswapd desde fill_pool()\n\nsyzbot está reportando una advertencia de lockdep en fill_pool() porque la asignación de debugobjects está usando GFP_ATOMIC, que es (__GFP_HIGH | __GFP_KSWAPD_RECLAIM) y por lo tanto intenta despertar a kswapd, que adquiere kswapd_wait::lock.\n\nDado que fill_pool() podría ser llamado con bloqueos arbitrarios mantenidos, fill_pool() no debería asumir que adquirir kswapd_wait::lock es seguro.\n\nUsar __GFP_HIGH en su lugar y eliminar __GFP_NORETRY ya que es inútil para la asignación !__GFP_DIRECT_RECLAIM."
    }
  ],
  "lastModified": "2026-06-17T06:47:07.637",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}