{
  "cveId": "CVE-2026-74354",
  "url": "https://patchblox.com/security/cve/CVE-2026-74354",
  "summary": "CVE-2026-74354 is fixed in linux on 1 platform by DEBIAN-CVE-2026-74354 (version 7.1.5-1), released August 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Take mmap_lock in zap_pages()  zap_vma_rang...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Take mmap_lock in zap_pages()  zap_vma_range() requires the owning mm\u0027s mmap_lock to be held.  Taking mmap_read_lock under arena-\u003Elock would AB-BA against arena_vm_close() and arena_map_mmap(), both of which run with mmap_write_lock held and then acquire arena-\u003Elock. Instead drop arena-\u003Elock, mmget_not_zero() the vma\u0027s mm, take mmap_read_lock, and re-resolve the vma via find_vma() since it may have been unmapped or replaced while waiting.  Track processed vmls with a per-call generation in vml-\u003Ezap_gen and serialize zap_pages() callers with a new arena-\u003Ezap_mutex so concurrent callers on different uaddr ranges do not mark each other\u0027s vmls processed before the zap is done.",
  "published": "2026-08-15T06:22:36Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00165,
  "epssPercentile": 0.0576,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-74354",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-74354",
      "released": "2026-08-15T22:38:55Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}