{
  "cveId": "CVE-2026-74405",
  "url": "https://patchblox.com/security/cve/CVE-2026-74405",
  "summary": "CVE-2026-74405 is fixed in 38 products on 1 platform, first by DEBIAN-CVE-2026-74405, released August 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "OPP: Fix race between OPP addition and lookup",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  OPP: Fix race between OPP addition and lookup  A race exists between dev_pm_opp_add_dynamic() and dev_pm_opp_find_freq_exact():    CPU0 (add)                          CPU1 (lookup)   -------------------------------     ------------------------------   _opp_add()     mutex_lock()     list_add(\u0026new_opp-\u003Enode, head)     mutex_unlock()                    _opp_table_find_key()                                         mutex_lock()                                         dev_pm_opp_get(opp)                                           kref_get()                                         mutex_unlock()     kref_init(\u0026new_opp-\u003Ekref)                                       dev_pm_opp_put()                                         kref_put_mutex()  The newly added OPP is inserted into the list before its kref is initialized. A concurrent lookup can find this OPP and increment its reference count while it is still uninitialized, leading to refcount corruption and a potential premature free.  Fix this by initializing -\u003Ekref and -\u003Eopp_table before making the OPP visible via list_add(). This ensures any concurrent lookup observes a fully initialized object.  [ Viresh: Updated commit log ]",
  "published": "2026-08-15T06:22:42Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0013,
  "epssPercentile": 0.02625,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-74405",
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  "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"
  }
}