{
  "cveId": "CVE-2026-98418",
  "url": "https://patchblox.com/security/cve/CVE-2026-98418",
  "summary": "CVE-2026-98418 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98418 (version 7.2.8-1), released October 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  sched/core: Avoid false migration warning for pr...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  sched/core: Avoid false migration warning for proxy donors  Proxy execution can move a blocked donor\u0027s scheduling context to the lock owner\u0027s CPU even when the donor is migration-disabled. The donor does not execute there, and its original execution CPU remains recorded in wake_cpu.  set_task_cpu() warns unconditionally for migration-disabled tasks, so a subsequent proxy migration or the wakeup path returning the donor home triggers a false positive: moving a blocked scheduling context does not violate the migration-disabled execution context.  For example, creating a mutex owner on CPU1 and a migration-disabled waiter on CPU0 can trigger the following warning:    proxy_migrate_repro: donor blocking on CPU0 with migration disabled   proxy_migrate_repro: donor moved from CPU0 to CPU1   WARNING: kernel/sched/core.c:3389 at set_task_cpu\u002B0x1d3/0x280   ...   Call Trace:    try_to_wake_up\u002B0x43f/0x780    __mutex_unlock_slowpath\u002B0x330/0x540    owner_fn\u002B0x9f/0xc0 [proxy_migrate_repro]   ...   proxy_migrate_repro: donor woke on CPU0, task_cpu=0   proxy_migrate_repro: completed  Exclude blocked proxy donors from the warning. The proxy wakeup path restores an executable placement before clearing the blocked state.",
  "published": "2026-10-14T14:17:53Z",
  "severity": "",
  "epss": 0.00207,
  "epssPercentile": 0.10894,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.8-1",
      "fix": "DEBIAN-CVE-2026-98418",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98418",
      "released": "2026-10-16T15:52:00Z"
    }
  ],
  "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"
  }
}