{
  "cveId": "CVE-2026-80697",
  "url": "https://patchblox.com/security/cve/CVE-2026-80697",
  "summary": "CVE-2026-80697 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80697 (version 7.1.8-1), released August 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "erofs: ensure valid f_path for page cache sharing",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  erofs: ensure valid f_path for page cache sharing  Previously, backing files for page cache sharing were set up with f_path left as NULL (only f_inode was valid).  It worked, but a recent mincore fix relies on f_path.mnt and crashes (found by \u0022erofs/028\u0022 on 7.2-rc4):   BUG: kernel NULL pointer dereference, address: 0000000000000018  #PF: supervisor read access in kernel mode  #PF: error_code(0x0000) - not-present page  PGD 0 P4D 0  Oops: Oops: 0000 [#1] SMP PTI  CPU: 3 UID: 0 PID: 675528 Comm: fincore Not tainted 7.2.0-rc4-00002-g[]-dirty #1 PREEMPT(lazy)  Hardware name: Red Hat KVM, BIOS 1.16.0-4.al8 04/01/2014  RIP: 0010:__do_sys_mincore\u002B0xc0/0x2c0  ...  Specify valid paths using valid disconnected dentries together with erofs_ishare_mnt instead of leaving f_path empty, so they are more like real backing files in a pseudo filesystem and standard backing_file_open() can be used directly.",
  "published": "2026-08-28T08:16:55Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.00198,
  "epssPercentile": 0.0956,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80697",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.8-1",
      "fix": "DEBIAN-CVE-2026-80697",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80697",
      "released": "2026-08-29T00:46:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}