{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.12-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  netfs, afs: Fix write skipping in dir/link writepages  Fix netfs_write_single() and afs_single_writepages() to better handle a write that would be skipped due to lock contention and WB_SYNC_NONE by returning 1 from netfs_write_single() if it skipped and making afs_single_writepages() skip also.  If a skip occurs, the inode must be re-marked as the VFS may have cleared the mark.  This is really only theoretical for directories in netfs_write_single() as the only path to that is through afs_single_writepages() that takes the -\u003evalidate_lock around it, thereby serialising it.",
  "id": "DEBIAN-CVE-2026-64156",
  "modified": "2026-09-14T16:47:47.064675229Z",
  "published": "2026-07-19T16:17:57.603Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64156"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-64156"
  ]
}