{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  s390/pai: Handle multiple PMU stop callback invocations  Handle the following scenario: The kernel protects itself against a very high sampling load and throttles the sampling using:    perf_event_throttle() --\u003e PMU-\u003estop()  Shortly later the scheduler may terminate the task and removes it from the CPU. It again calls    PMU-\u003estop()  which results in two invocations of PMU-\u003estop() called back to back. Protect against this and check the PERF_HES_STOPPED bit on function entry.  If it is already set return. Clear bit PERF_HES_STOPPED in PMU-\u003estart().  Prohibit ioctl(fd, PERF_EVENT_IOC_PERIOD, ...) call for this event. It sets perf_event::event_limit to a positive value and causes perf_event_overflow() to invoke pai_stop() call back function when perf_event::event_limit hits zero. This is not supported because the sample events CRYPTO_ALL and NNPA_ALL are only taken at schedule out of a task.  Use list_for_each_entry_safe() for safe iteration over syswide_list in pai_have_samples().",
  "id": "DEBIAN-CVE-2026-99125",
  "modified": "2026-10-29T05:47:21.469867522Z",
  "published": "2026-10-28T11:17:32.210Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-99125"
    }
  ],
  "upstream": [
    "CVE-2026-99125"
  ]
}