{
  "cveId": "CVE-2025-68375",
  "url": "https://patchblox.com/security/cve/CVE-2025-68375",
  "summary": "CVE-2025-68375 is fixed in linux on 1 platform by DEBIAN-CVE-2025-68375 (version 6.17.13-1), released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  perf/x86: Fix NULL event access and potential PE...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  perf/x86: Fix NULL event access and potential PEBS record loss  When intel_pmu_drain_pebs_icl() is called to drain PEBS records, the perf_event_overflow() could be called to process the last PEBS record.  While perf_event_overflow() could trigger the interrupt throttle and stop all events of the group, like what the below call-chain shows.  perf_event_overflow()   -\u003E __perf_event_overflow()     -\u003E__perf_event_account_interrupt()       -\u003E perf_event_throttle_group()         -\u003E perf_event_throttle()           -\u003E event-\u003Epmu-\u003Estop()             -\u003E x86_pmu_stop()  The side effect of stopping the events is that all corresponding event pointers in cpuc-\u003Eevents[] array are cleared to NULL.  Assume there are two PEBS events (event a and event b) in a group. When intel_pmu_drain_pebs_icl() calls perf_event_overflow() to process the last PEBS record of PEBS event a, interrupt throttle is triggered and all pointers of event a and event b are cleared to NULL. Then intel_pmu_drain_pebs_icl() tries to process the last PEBS record of event b and encounters NULL pointer access.  To avoid this issue, move cpuc-\u003Eevents[] clearing from x86_pmu_stop() to x86_pmu_del(). It\u0027s safe since cpuc-\u003Eactive_mask or cpuc-\u003Epebs_enabled is always checked before access the event pointer from cpuc-\u003Eevents[].",
  "published": "2025-12-24T11:16:01Z",
  "severity": "",
  "epss": 0.00193,
  "epssPercentile": 0.08973,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.17.13-1",
      "fix": "DEBIAN-CVE-2025-68375",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-68375",
      "released": "2025-12-24T11:16:01Z"
    }
  ],
  "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"
  }
}