{
  "cveId": "CVE-2026-23044",
  "url": "https://patchblox.com/security/cve/CVE-2026-23044",
  "summary": "CVE-2026-23044 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23044 (version 6.18.8-1), released February 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  PM: hibernate: Fix crash when freeing invalid cr...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  PM: hibernate: Fix crash when freeing invalid crypto compressor  When crypto_alloc_acomp() fails, it returns an ERR_PTR value, not NULL.  The cleanup code in save_compressed_image() and load_compressed_image() unconditionally calls crypto_free_acomp() without checking for ERR_PTR, which causes crypto_acomp_tfm() to dereference an invalid pointer and crash the kernel.  This can be triggered when the compression algorithm is unavailable (e.g., CONFIG_CRYPTO_LZO not enabled).  Fix by adding IS_ERR_OR_NULL() checks before calling crypto_free_acomp() and acomp_request_free(), similar to the existing kthread_stop() check.  [ rjw: Added 2 empty code lines ]",
  "published": "2026-02-04T16:16:19Z",
  "severity": "",
  "epss": 0.00174,
  "epssPercentile": 0.06855,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.8-1",
      "fix": "DEBIAN-CVE-2026-23044",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23044",
      "released": "2026-02-04T16:16:19Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}