ghsa-h2jq-7w25-hghw
Vulnerability from github
Published
2024-06-19 15:30
Modified
2024-06-19 15:30
Details

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

bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE

bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses bpf_prog_get and relies on bpf_prog_attach_check_attach_type to properly verify prog_type <> attach_type association.

Add missing attach_type enforcement for the link_create case. Otherwise, it's currently possible to attach cgroup_skb prog types to other cgroup hooks.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2024-38564"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:16Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE\n\nbpf_prog_attach uses attach_type_to_prog_type to enforce proper\nattach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses\nbpf_prog_get and relies on bpf_prog_attach_check_attach_type\nto properly verify prog_type \u003c\u003e attach_type association.\n\nAdd missing attach_type enforcement for the link_create case.\nOtherwise, it\u0027s currently possible to attach cgroup_skb prog\ntypes to other cgroup hooks.",
  "id": "GHSA-h2jq-7w25-hghw",
  "modified": "2024-06-19T15:30:53Z",
  "published": "2024-06-19T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38564"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/543576ec15b17c0c93301ac8297333c7b6e84ac7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6675c541f540a29487a802d3135280b69b9f568d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67929e973f5a347f05fef064fea4ae79e7cdb5fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b34bbc76651065a5eafad8ddff1eb8d1f8473172"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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