ghsa-4jv7-xrm9-5fjr
Vulnerability from github
Published
2024-04-10 21:30
Modified
2025-01-07 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

perf bpf: Avoid memory leak from perf_env__insert_btf()

perf_env__insert_btf() doesn't insert if a duplicate BTF id is encountered and this causes a memory leak. Modify the function to return a success/error value and then free the memory if insertion didn't happen.

v2. Adds a return -1 when the insertion error occurs in perf_env__fetch_btf. This doesn't affect anything as the result is never checked.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47190"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-10T19:15:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf bpf: Avoid memory leak from perf_env__insert_btf()\n\nperf_env__insert_btf() doesn\u0027t insert if a duplicate BTF id is\nencountered and this causes a memory leak. Modify the function to return\na success/error value and then free the memory if insertion didn\u0027t\nhappen.\n\nv2. Adds a return -1 when the insertion error occurs in\n    perf_env__fetch_btf. This doesn\u0027t affect anything as the result is\n    never checked.",
  "id": "GHSA-4jv7-xrm9-5fjr",
  "modified": "2025-01-07T18:30:41Z",
  "published": "2024-04-10T21:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47190"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11589d3144bc4e272e0aae46ce8156162e99babc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4924b1f7c46711762fd0e65c135ccfbcfd6ded1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/642fc22210a5e59d40b1e4d56d21ec3effd401f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab7c3d8d81c511ddfb27823fb07081c96422b56e"
    }
  ],
  "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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