ghsa-2xq5-458f-5cj8
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: hns3: 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 HNS3_PMU_MAX_HW_EVENTS, 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-2024-38568"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:16Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/perf: hisi: hns3: 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\nof bounds when writing data to the event_group array. If the number of\nevents in an event_group is greater than HNS3_PMU_MAX_HW_EVENTS, the\nmemory write overflow 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/}",
  "id": "GHSA-2xq5-458f-5cj8",
  "modified": "2024-09-19T15:30:48Z",
  "published": "2024-06-19T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38568"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3669baf308308385a2ab391324abdde5682af5aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81bdd60a3d1d3b05e6cc6674845afb1694dd3a0e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa2d3d678895c8eedd003f1473f87d3f06fe6ec7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5120d322763c15c978bc47beb3b6dff45624304"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be1fa711e59c874d049f592aef1d4685bdd22bdf"
    }
  ],
  "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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