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CVE-2023-54041

Estado: AplazadaSin puntuar—

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

io_uring: fix memory leak when removing provided buffers

When removing provided buffers, io_buffer structs are not being disposed of, leading to a memory leak. They can't be freed individually, because they are allocated in page-sized groups. They need to be added to some free list instead, such as io_buffers_cache. All callers already hold the lock protecting it, apart from when destroying buffers, so had to extend the lock there.

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)

Mostrar
{
  "id": "CVE-2023-54041",
  "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": "cc3cec8367cba76a8ae4c271eba8450f3efc1ba3",
              "lessThan": "ac48787f58d1068f4e06d627c1135784d64b4c72",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc3cec8367cba76a8ae4c271eba8450f3efc1ba3",
              "lessThan": "c117c15927772d1624c29c092b6bd3f47c7faa48",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc3cec8367cba76a8ae4c271eba8450f3efc1ba3",
              "lessThan": "b4a72c0589fdea6259720375426179888969d6a2",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "io_uring/io_uring.c",
            "io_uring/kbuf.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.24",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.11",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "io_uring/io_uring.c",
            "io_uring/kbuf.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-24T11:15:57.090",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/ac48787f58d1068f4e06d627c1135784d64b4c72",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b4a72c0589fdea6259720375426179888969d6a2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c117c15927772d1624c29c092b6bd3f47c7faa48",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: fix memory leak when removing provided buffers\n\nWhen removing provided buffers, io_buffer structs are not being disposed\nof, leading to a memory leak. They can't be freed individually, because\nthey are allocated in page-sized groups. They need to be added to some\nfree list instead, such as io_buffers_cache. All callers already hold\nthe lock protecting it, apart from when destroying buffers, so had to\nextend the lock there."
    }
  ],
  "lastModified": "2026-06-17T06:46:41.870",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}