ghsa-8qrc-cg87-8g3w
Vulnerability from github
Published
2024-10-21 12:30
Modified
2024-10-23 15:31
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:

bpf: Fix use-after-free in bpf_uprobe_multi_link_attach()

If bpf_link_prime() fails, bpf_uprobe_multi_link_attach() goes to the error_free label and frees the array of bpf_uprobe's without calling bpf_uprobe_unregister().

This leaks bpf_uprobe->uprobe and worse, this frees bpf_uprobe->consumer without removing it from the uprobe->consumers list.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-47675"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T12:15:04Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix use-after-free in bpf_uprobe_multi_link_attach()\n\nIf bpf_link_prime() fails, bpf_uprobe_multi_link_attach() goes to the\nerror_free label and frees the array of bpf_uprobe\u0027s without calling\nbpf_uprobe_unregister().\n\nThis leaks bpf_uprobe-\u003euprobe and worse, this frees bpf_uprobe-\u003econsumer\nwithout removing it from the uprobe-\u003econsumers list.",
  "id": "GHSA-8qrc-cg87-8g3w",
  "modified": "2024-10-23T15:31:03Z",
  "published": "2024-10-21T12:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47675"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5fe6e308abaea082c20fbf2aa5df8e14495622cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/790c630ab0e7d7aba6d186581d4627c09fce60f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c1d782e5afbf7c50ba74ecc4ddc18a05d63e5ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cdf27834c3dd5d9abf7eb8e4ee87ee9e307eb25c"
    }
  ],
  "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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