FKIE_CVE-2023-54041

Vulnerability from fkie_nvd - Published: 2025-12-24 11:15 - Updated: 2025-12-29 15:58
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac48787f58d1068f4e06d627c1135784d64b4c72
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4a72c0589fdea6259720375426179888969d6a2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c117c15927772d1624c29c092b6bd3f47c7faa48
Impacted products
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{
  "cveTags": [],
  "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\u0027t 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."
    }
  ],
  "id": "CVE-2023-54041",
  "lastModified": "2025-12-29T15:58:56.260",
  "metrics": {},
  "published": "2025-12-24T11:15:57.090",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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