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FKIE_CVE-2023-54268

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-06-17 06:47
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4c088d30a72d9b8f9c6ae9362222942e4075cb00
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7fff52c99d52f180d8bef95d8ed8fec6343889c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb799279fb1f9c63c520fe8c1c41cb9154252db6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd673079749bac97bb30f1461df079e6c8e86511
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "lib/debugobjects.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "be646802b3dc408c4dc72a3ac32c3f4a0282414d",
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "versionType": "git"
            },
            {
              "lessThan": "fd673079749bac97bb30f1461df079e6c8e86511",
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "versionType": "git"
            },
            {
              "lessThan": "aee97eec77029270866c704f66cdf2881cbd2fe1",
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "versionType": "git"
            },
            {
              "lessThan": "d7fff52c99d52f180d8bef95d8ed8fec6343889c",
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "versionType": "git"
            },
            {
              "lessThan": "4c088d30a72d9b8f9c6ae9362222942e4075cb00",
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "versionType": "git"
            },
            {
              "lessThan": "eb799279fb1f9c63c520fe8c1c41cb9154252db6",
              "status": "affected",
              "version": "3ac7fe5a4aab409bd5674d0b070bce97f9d20872",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "lib/debugobjects.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.26"
            },
            {
              "lessThan": "2.6.26",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.244",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.31",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Don\u0027t 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 est\u00e1 reportando una advertencia de lockdep en fill_pool() porque la asignaci\u00f3n de debugobjects est\u00e1 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() podr\u00eda ser llamado con bloqueos arbitrarios mantenidos, fill_pool() no deber\u00eda asumir que adquirir kswapd_wait::lock es seguro.\n\nUsar __GFP_HIGH en su lugar y eliminar __GFP_NORETRY ya que es in\u00fatil para la asignaci\u00f3n !__GFP_DIRECT_RECLAIM."
    }
  ],
  "id": "CVE-2023-54268",
  "lastModified": "2026-06-17T06:47:07.637",
  "metrics": {},
  "published": "2025-12-30T13:16:15.623",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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