ghsa-fr6h-wc99-8m37
Vulnerability from github
Published
2024-06-19 15:30
Modified
2024-09-19 15:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group

The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write overflow of event_group array occurs.

Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written to array bounds.

There are 9 different events in an event_group. [1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}'

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{
  "affected": [],
  "aliases": [
    "CVE-2024-38569"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:17Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/perf: hisi_pcie: Fix out-of-bound access when valid event group\n\nThe perf tool allows users to create event groups through following\ncmd [1], but the driver does not check whether the array index is out of\nbounds when writing data to the event_group array. If the number of events\nin an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write\noverflow of event_group array occurs.\n\nAdd array index check to fix the possible array out of bounds violation,\nand return directly when write new events are written to array bounds.\n\nThere are 9 different events in an event_group.\n[1] perf stat -e \u0027{pmu/event1/, ... ,pmu/event9/}\u0027",
  "id": "GHSA-fr6h-wc99-8m37",
  "modified": "2024-09-19T15:30:48Z",
  "published": "2024-06-19T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38569"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d1face00ebb7996842aee4214d7d0fb0c77b1e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/567d34626c22b36579ec0abfdf5eda2949044220"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77fce82678ea5fd51442e62febec2004f79e041b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e9aab2492178f25372f1820bfd9289fbd74efd0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff48247144d13a3a0817127703724256008efa78"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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