{
  "cveId": "CVE-2026-90300",
  "url": "https://patchblox.com/security/cve/CVE-2026-90300",
  "summary": "CVE-2026-90300 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-90300, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "bpf: Clear buf on error in __bpf_get_task_stack",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Clear buf on error in __bpf_get_task_stack  Both bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that use __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM argument and we should initialize the buf on every return path.  Adding missing buf memset for __bpf_get_task_stack fail paths. This provides deterministic buffer contents, which is useful when the buffer is used directly as a map key.",
  "published": "2026-09-17T17:17:27Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "epss": 0.00206,
  "epssPercentile": 0.1073,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90300",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-90300",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90300",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90300",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90300",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}