{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-53084",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-53084"
  ],
  "published": "2026-06-24T16:31:02Z",
  "summary": "bpf: return VMA snapshot from task_vma iterator",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: return VMA snapshot from task_vma iterator\n\nHolding the per-VMA lock across the BPF program body creates a lock\nordering problem when helpers acquire locks that depend on mmap_lock:\n\n  vm_lock -> i_rwsem -> mmap_lock -> vm_lock\n\nSnapshot the VMA under the per-VMA lock in _next() via memcpy(), then\ndrop the lock before returning. The BPF program accesses only the\nsnapshot.\n\nThe verifier only trusts vm_mm and vm_file pointers (see\nBTF_TYPE_SAFE_TRUSTED_OR_NULL in verifier.c). vm_file is reference-\ncounted with get_file() under the lock and released via fput() on the\nnext iteration or in _destroy(). vm_mm is already correct because\nlock_vma_under_rcu() verifies vma->vm_mm == mm. All other pointers\nare left as-is by memcpy() since the verifier treats them as untrusted.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53084"
    },
    {
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  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-24T16:31:02Z"
  }
}