{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "bd27568117664b8b3e259721393df420ed51f57b"
            },
            {
              "fixed": "723e85fb2c3bcd237ac02cbd69502ed62ce0068c"
            },
            {
              "fixed": "6d0b9ce3be221c9077653f3670d60d66bb725ee2"
            },
            {
              "fixed": "e2770c76a02452fddb52e9e05c7ed6acfef06c32"
            },
            {
              "fixed": "59e63416f5153e7d58652c616fbdcb7d5e01fff7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.12.111"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97961.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Allow list_del during perf_event_overflow()\n\nA PMU might use perf_sched_cb_inc() and perf_sched_cb_dec()\ninterface to get the PMU call back function pmu::sched_task\ninvoked at schedule in and schedule out. This is achieved\nby walking along the list anchored by sched_cb_list.\n\nThe following scenario might lead to a list corruption.\n\n   perf_pmu_sched_task()\n      for_each_list_entry(..., \u0026sched_cb_list)\n      +--\u003e __perf_pmu_sched_task()\n           +--\u003e event-\u003epmu-\u003esched_task())\n                +--\u003e PMU_push_sample()\n                     +--\u003e perf_event_overflow()\n                          +--\u003e __perf_event_overflow()\n                               +--\u003e pmu-\u003estop()\n                                    +--\u003e perf_sched_cb_dec()\n                                         remove entry from sched_cb_list\n                                         while list node in use.\n\nThis happens when ioctl(fd, PERF_EVENT_IOC_REFRESH, xxx) has been\ninvoked and perf_event::event_limit hits zero.\n\nPrevent the list corruption and convert for_each_list_entry()\nto for_each_list_entry_safe().",
  "id": "CVE-2026-97961",
  "modified": "2026-09-27T03:31:00.040916520Z",
  "published": "2026-09-25T10:23:05.547Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59e63416f5153e7d58652c616fbdcb7d5e01fff7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d0b9ce3be221c9077653f3670d60d66bb725ee2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/723e85fb2c3bcd237ac02cbd69502ed62ce0068c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2770c76a02452fddb52e9e05c7ed6acfef06c32"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97961.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97961"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "perf/core: Allow list_del during perf_event_overflow()"
}