ghsa-vv74-wh7g-52xw
Vulnerability from github
Published
2024-03-01 00:30
Modified
2024-11-08 00:30
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Details

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

mt76: fix potential DMA mapping leak

With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap could potentially inherit a non-zero value from stack garbage. If this happens, it will cause DMA mappings for MCU command frames to not be unmapped after completion

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47064"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T23:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: fix potential DMA mapping leak\n\nWith buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap\ncould potentially inherit a non-zero value from stack garbage.\nIf this happens, it will cause DMA mappings for MCU command frames to not be\nunmapped after completion",
  "id": "GHSA-vv74-wh7g-52xw",
  "modified": "2024-11-08T00:30:44Z",
  "published": "2024-03-01T00:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47064"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}


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