{
  "cveId": "CVE-2026-72377",
  "url": "https://patchblox.com/security/cve/CVE-2026-72377",
  "summary": "CVE-2026-72377 is fixed in linux on 1 platform by DEBIAN-CVE-2026-72377 (version 7.1.5-1), released August 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  afs: Remove setting of AS_RELEASE_ALWAYS for sym...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  afs: Remove setting of AS_RELEASE_ALWAYS for symlinks and mountpoints  Regular AFS files correctly use afs_file_aops which have release_folio set as netfs_release_folio, so AS_RELEASE_ALWAYS is valid for them when fscache is enabled (set via afs_vnode_set_cache()). Symlinks and mountpoints in AFS use afs_dir_aops, which does not provide a release_folio callback. However, afs_apply_status() unconditionally calls mapping_set_release_always() for these.  In such case when memory management code attempts to release folios, filemap_release_folio() checks folio_needs_release() which returns true due to AS_RELEASE_ALWAYS being set. Since there is no release_folio callback, it falls through to try_to_free_buffers(), which at present expects buffer_heads to be not null. For symlinks and mountpoints without buffer_heads, this causes pointer dereference.  [dh: Added more bits that were missed]",
  "published": "2026-08-15T06:22:11Z",
  "severity": "",
  "epss": 0.00198,
  "epssPercentile": 0.09558,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-72377",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-72377",
      "released": "2026-08-15T22:38:55Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}