GHSA-9H9W-GCP8-VRG5

Vulnerability from github – Published: 2025-03-18 21:32 – Updated: 2025-03-18 21:32
VLAI
Details

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

mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init

The reference counting issue happens in several error handling paths on a refcounted object "nc->dmac". In these paths, the function simply returns the error code, forgetting to balance the reference count of "nc->dmac", increased earlier by dma_request_channel(), which may cause refcount leaks.

Fix it by decrementing the refcount of specific object in those error paths.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-49212"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:58Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init\n\nThe reference counting issue happens in several error handling paths\non a refcounted object \"nc-\u003edmac\". In these paths, the function simply\nreturns the error code, forgetting to balance the reference count of\n\"nc-\u003edmac\", increased earlier by dma_request_channel(), which may\ncause refcount leaks.\n\nFix it by decrementing the refcount of specific object in those error\npaths.",
  "id": "GHSA-9h9w-gcp8-vrg5",
  "modified": "2025-03-18T21:32:00Z",
  "published": "2025-03-18T21:32:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49212"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0856bf27057561f42b37df111603cf5a0d040294"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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