{
  "cveId": "CVE-2026-98787",
  "url": "https://patchblox.com/security/cve/CVE-2026-98787",
  "summary": "CVE-2026-98787 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98787 (version 7.2.10-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix missing migration protection in __rhtab...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix missing migration protection in __rhtab_map_lookup_and_delete_batch()  bpf_mem_cache_free_rcu() uses this_cpu_ptr() which requires migration to be disabled. All callers of rhtab_delete_elem() disable migration except __rhtab_map_lookup_and_delete_batch(), which calls it under rcu_read_lock() only.  On CONFIG_PREEMPT_RCU, rcu_read_lock() does not disable preemption or migration, so the task can migrate between CPUs during the delete loop, causing this_cpu_ptr() to trigger:    BUG: using smp_processor_id() in preemptible [00000000] code  Fix by wrapping the delete loop in migrate_disable()/migrate_enable() in __rhtab_map_lookup_and_delete_batch(), matching the migration protection that the other callers already provide.",
  "published": "2026-10-18T16:17:32Z",
  "severity": "",
  "epss": 0.00155,
  "epssPercentile": 0.04711,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.10-1",
      "fix": "DEBIAN-CVE-2026-98787",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98787",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "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"
  }
}