{
  "cveId": "CVE-2026-64213",
  "url": "https://patchblox.com/security/cve/CVE-2026-64213",
  "summary": "CVE-2026-64213 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2026-64213, released July 25, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "hwmon: (lm90) Add lock protection to lm90_alert",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  hwmon: (lm90) Add lock protection to lm90_alert  Sashiko reports:  lm90_alert() executes in the smbus alert context and calls lm90_update_confreg() to disable the hardware alert line, without acquiring hwmon_lock.  Concurrently, sysfs write operations (such as lm90_write_convrate) hold the hwmon_lock, temporarily modify data-\u003Econfig, and then restore it.  If an alert interrupt occurs concurrently with a sysfs write, the sysfs path will overwrite the alert handler\u0027s modifications to data-\u003Econfig and the hardware register.  This unintentionally re-enables the hardware alert line while the alarm is still active, causing an interrupt storm.  Add the missing lock to lm90_alert() to solve the problem.",
  "published": "2026-07-24T16:16:48Z",
  "severity": "Important",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00123,
  "epssPercentile": 0.02036,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64213",
  "fixes": [
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1.150700.17.47.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7-RT_Update_21",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.1.3.1",
      "fix": "SUSE-SU-2026:4640-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4640-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7_Update_22",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.15.3.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-64213",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64213",
      "released": "2026-07-25T13:43:44Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.12-1",
      "fix": "DEBIAN-CVE-2026-64213",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64213",
      "released": "2026-07-25T13:43:44Z"
    }
  ],
  "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"
  }
}