{
  "cveId": "CVE-2026-45955",
  "url": "https://patchblox.com/security/cve/CVE-2026-45955",
  "summary": "CVE-2026-45955 is fixed in 23 products on 1 platform, first by ALAS2023-2026-1514, released March 30, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  md/md-llbitmap: fix percpu_ref not resurrected o...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  md/md-llbitmap: fix percpu_ref not resurrected on suspend timeout  When llbitmap_suspend_timeout() times out waiting for percpu_ref to become zero, it returns -ETIMEDOUT without resurrecting the percpu_ref. The caller (md_llbitmap_daemon_fn) then continues to the next page without calling llbitmap_resume(), leaving the percpu_ref in a killed state permanently.  Fix this by resurrecting the percpu_ref before returning the error, ensuring the page control structure remains usable for subsequent operations.",
  "published": "2026-03-30T09:00:00Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
  "epss": 0.00124,
  "epssPercentile": 0.02178,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.15-14.217",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.14-1",
      "fix": "DEBIAN-CVE-2026-45955",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-45955",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.15-14.217.amzn2023",
      "fix": "ALAS2023-2026-1514",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1514",
      "released": "2026-03-30T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}