ghsa-3g6h-mcpv-p279
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-11-03 21:33
Details

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

arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs

A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next.

On exit from a BPF program, emit the BHB mititgation sequence.

This is only applied for 'classic' cBPF programs that are loaded by seccomp.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37948"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:32Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: bpf: Add BHB mitigation to the epilogue for cBPF programs\n\nA malicious BPF program may manipulate the branch history to influence\nwhat the hardware speculates will happen next.\n\nOn exit from a BPF program, emit the BHB mititgation sequence.\n\nThis is only applied for \u0027classic\u0027 cBPF programs that are loaded by\nseccomp.",
  "id": "GHSA-3g6h-mcpv-p279",
  "modified": "2025-11-03T21:33:55Z",
  "published": "2025-05-20T18:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37948"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ece"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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