{
  "cveId": "CVE-2026-90043",
  "url": "https://patchblox.com/security/cve/CVE-2026-90043",
  "summary": "CVE-2026-90043 is fixed in linux on 1 platform by DEBIAN-CVE-2026-90043 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  zram: fix slot lock bit position on big-endian 6...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  zram: fix slot lock bit position on big-endian 64-bit  The slot lock is a bit operation on the whole __lock word, which flags and ac_time alias as two u32s.  On little-endian the lock bit lands in the position ZRAM_ENTRY_LOCK reserves in flags, so the aliasing works out.  On 64-bit big-endian it lands in ac_time instead: with ZRAM_TRACK_ENTRY_ACTIME enabled, storing the access time from mark_slot_accessed() or slot_free() wipes out the held lock bit, letting another CPU take the same slot lock; an access time value with that bit set makes the slot look locked forever.  Shift the lock bit into the flags half of the word on big-endian 64-bit.",
  "published": "2026-09-16T11:17:17Z",
  "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": 0.05764,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90043",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90043",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}