CVE-2025-40267 (GCVE-0-2025-40267)

Vulnerability from cvelistv5 – Published: 2025-12-06 21:50 – Updated: 2026-05-11 21:46
VLAI
Title
io_uring/rw: ensure allocated iovec gets cleared for early failure
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: ensure allocated iovec gets cleared for early failure A previous commit reused the recyling infrastructure for early cleanup, but this is not enough for the case where our internal caches have overflowed. If this happens, then the allocated iovec can get leaked if the request is also aborted early. Reinstate the previous forced free of the iovec for that situation.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6666 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9ac273ae3dc296905b4d61e4c8e7a25592f6d183 , < 094c6467fe05e0de618c5a7fcff4d3ee20aeaef8 (git)
Affected: 9ac273ae3dc296905b4d61e4c8e7a25592f6d183 , < d3c9c213c0b86ac5dd8fe2c53c24db20f1f510bc (git)
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Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 6.17.9 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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        }
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      "providerMetadata": {
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          "url": "https://git.kernel.org/stable/c/d3c9c213c0b86ac5dd8fe2c53c24db20f1f510bc"
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    "cveId": "CVE-2025-40267",
    "datePublished": "2025-12-06T21:50:47.614Z",
    "dateReserved": "2025-04-16T07:20:57.183Z",
    "dateUpdated": "2026-05-11T21:46:02.164Z",
    "state": "PUBLISHED"
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/rw: ensure allocated iovec gets cleared for early failure\n\nA previous commit reused the recyling infrastructure for early cleanup,\nbut this is not enough for the case where our internal caches have\noverflowed. If this happens, then the allocated iovec can get leaked if\nthe request is also aborted early.\n\nReinstate the previous forced free of the iovec for that situation."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:\n\nio_uring/rw:** garantizar que el iovec asignado se borre ante un fallo temprano  \n\nUn commit anterior reutiliz\u00f3 la infraestructura de reciclaje para una limpieza temprana, pero eso no es suficiente para el caso en que nuestras cach\u00e9s internas se hayan desbordado. Si esto ocurre, el iovec asignado puede filtrarse si la solicitud tambi\u00e9n se aborta temprano.  \n\nRestablezca la liberaci\u00f3n forzada anterior del iovec para esa situaci\u00f3n."
          }
        ],
        "id": "CVE-2025-40267",
        "lastModified": "2026-10-15T20:10:00.197",
        "metrics": {},
        "published": "2025-12-06T22:15:54.200",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "cve": "CVE-2025-40267",
      "id": "CVE-2025-40267",
      "initial_release_date": "2025-12-06T00:00:00+00:00",
      "product_status:known_affected": "184",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: io_uring/rw: ensure allocated iovec gets cleared for early failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40267.json",
      "version": "3"
    }
  }
}



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