ghsa-88rc-96xj-2mvh
Vulnerability from github
Published
2024-06-20 12:31
Modified
2025-01-07 00:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details

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

dma-buf: heaps: Fix potential spectre v1 gadget

It appears like nr could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory from being leaked to userspace via speculative execution by using array_index_nospec.

[sumits: added fixes and cc: stable tags]

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48730"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-20T12:15:11Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-buf: heaps: Fix potential spectre v1 gadget\n\nIt appears like nr could be a Spectre v1 gadget as it\u0027s supplied by a\nuser and used as an array index. Prevent the contents\nof kernel memory from being leaked to userspace via speculative\nexecution by using array_index_nospec.\n\n [sumits: added fixes and cc: stable tags]",
  "id": "GHSA-88rc-96xj-2mvh",
  "modified": "2025-01-07T00:31:39Z",
  "published": "2024-06-20T12:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48730"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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