ghsa-89pr-66m5-4vwv
Vulnerability from github
Published
2025-04-16 15:34
Modified
2025-04-16 15:34
Details

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

bpf: Fix array bounds error with may_goto

may_goto uses an additional 8 bytes on the stack, which causes the interpreters[] array to go out of bounds when calculating index by stack_size.

  1. If a BPF program is rewritten, re-evaluate the stack size. For non-JIT cases, reject loading directly.

  2. For non-JIT cases, calculating interpreters[idx] may still cause out-of-bounds array access, and just warn about it.

  3. For jit_requested cases, the execution of bpf_func also needs to be warned. So move the definition of function __bpf_prog_ret0_warn out of the macro definition CONFIG_BPF_JIT_ALWAYS_ON.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-22087"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-16T15:16:02Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix array bounds error with may_goto\n\nmay_goto uses an additional 8 bytes on the stack, which causes the\ninterpreters[] array to go out of bounds when calculating index by\nstack_size.\n\n1. If a BPF program is rewritten, re-evaluate the stack size. For non-JIT\ncases, reject loading directly.\n\n2. For non-JIT cases, calculating interpreters[idx] may still cause\nout-of-bounds array access, and just warn about it.\n\n3. For jit_requested cases, the execution of bpf_func also needs to be\nwarned. So move the definition of function __bpf_prog_ret0_warn out of\nthe macro definition CONFIG_BPF_JIT_ALWAYS_ON.",
  "id": "GHSA-89pr-66m5-4vwv",
  "modified": "2025-04-16T15:34:44Z",
  "published": "2025-04-16T15:34:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22087"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19e6817f84000d0b06f09fd69ebd56217842c122"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a86ae57b2600e5749f5f674e9d4296ac00c69a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4524b7febdd55fb99ae2e1f48db64019fa69e643"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ebc5030e0c5a698f1dd9a6684cddf6ccaed64a0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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