{
  "cveId": "CVE-2026-53314",
  "url": "https://patchblox.com/security/cve/CVE-2026-53314",
  "summary": "CVE-2026-53314 is fixed in 55 products on 1 platform, first by ALAS2023-2026-1882, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "padata: Put CPU offline callback in ONLINE section to allow failure",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  padata: Put CPU offline callback in ONLINE section to allow failure  syzbot reported the following warning:      DEAD callback error for CPU1     WARNING: kernel/cpu.c:1463 at _cpu_down\u002B0x759/0x1020 kernel/cpu.c:1463, CPU#0: syz.0.1960/14614  at commit 4ae12d8bd9a8 (\u0022Merge tag \u0027kbuild-fixes-7.0-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux\u0022) which tglx traced to padata_cpu_dead() given it\u0027s the only sub-CPUHP_TEARDOWN_CPU callback that returns an error.  Failure isn\u0027t allowed in hotplug states before CPUHP_TEARDOWN_CPU so move the CPU offline callback to the ONLINE section where failure is possible.",
  "published": "2026-06-22T09:00:00Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00118,
  "epssPercentile": 0.01745,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53314",
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      "fix": "ALAS2023-2026-1894",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1894",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.33-63.124.amzn2023",
      "fix": "ALAS2023-2026-1866",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1866",
      "released": "2026-06-22T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.33-63.124.amzn2023",
      "fix": "ALAS2023-2026-1866",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1866",
      "released": "2026-06-22T09:00:00Z"
    }
  ],
  "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"
  }
}