{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.113-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.9-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  perf/core: Fix NULL pmu_ctx passed to pmu-\u003esched_task()  perf_pmu_sched_task() returns early when cpuctx-\u003etask_ctx is set, and cpc-\u003etask_epc is only non-NULL while a task context is scheduled in on this CPU. __perf_pmu_sched_task() therefore always passes NULL:    Unable to handle kernel NULL pointer dereference at virtual address 00   pc : armv8pmu_sched_task+0x14/0x50   Call trace:    armv8pmu_sched_task+0x14/0x50 (P)    perf_pmu_sched_task+0xac/0x108    __perf_event_task_sched_out+0x6c/0xe0  Pass \u0026cpc-\u003eepc instead, the CPU-wide context for this PMU, which the function already dereferences a few lines up to find pmu.  armv8pmu_sched_task() is the only in-tree implementation that dereferences the argument, and it only reads -\u003epmu, so the oops needs BRBE, added in v6.17.",
  "id": "DEBIAN-CVE-2026-98477",
  "modified": "2026-10-19T04:47:47.474624829Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-98477"
    }
  ],
  "upstream": [
    "CVE-2026-98477"
  ]
}