{
  "cveId": "CVE-2021-38201",
  "url": "https://patchblox.com/security/cve/CVE-2021-38201",
  "summary": "CVE-2021-38201 is fixed in 37 products on 1 platform, first by RHSA-2021:3447, released September 7, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: p...",
  "description": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)\n\n* kernel: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c (CVE-2021-38201)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* Update Broadcom Emulex lpfc driver for RHEL8.5 with bug fixes (BZ#1948608)\n\n* cyclictest shows \u003E50us latency when guest enters idle (RT guest with 18 RT vCPUs) (BZ#1981336)\n\n* xfrm: backports from upstream (BZ#1981840)\n\n* A task is stuck waiting for the completion of the vmci_resouce releasing upon the balloon reset. (BZ#1982042)\n\n* [mlx5] backport driver bits of  net: zero-initialize tc skb extension on allocation (BZ#1982220)\n\n* Kernel cannot kill a process doing compaction for hugepage allocation (BZ#1984085)\n\n* RHEL8.4 Nightly[0108] - [P10] [Regression] Kdump failed on RHEL8.4 on SAN disk via flavafish adapter (qla2xxx/HPT/Radix) (BZ#1986156)\n\n* [RHEL8.5] scheduler updates and fixes (BZ#1987296)\n\n* RHEL 8.3 using FCOE via a FastLinQ QL45000 card will not manually scan in LUN from Target_id\u0027s over 8 (BZ#1989097)\n\n* fixes for oopses in security mitigation runtime code patching (BZ#1989174)\n\n* act mirred doesn\u0027t scrub packets when sending them to ingress (BZ#1992226)\n\n* HPE: Cannot install 8.4 using the DVD presented to the iLO (BZ#1993894)\n\n* NFS client hangs on share listing when server side readdir verifiers are implemented (BZ#1993895)\n\n* SNO: The load is extremely high (~870) when pao is added and a profile is applied. (BZ#1994879)\n\n* timeout value of conntrack entry with TCP ESTABLISHED status is too short (BZ#1995554)\n\n* Increase the default value for flowtable offload timeouts (BZ#1995555)\n\n* ice/iavf driver stop responding (BZ#1997534)\n\n* [FJ8.4 Bug]: [REG] Some files in /proc/sys/user show wrong data (BZ#1998002)",
  "published": "2021-09-07T00:00:00Z",
  "severity": "Important",
  "cvss": 7.5,
  "epss": 0.03365,
  "epssPercentile": 0.88806,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "platform": "linux",
      "product": "python3-perf",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-305.17.1.el8_4",
      "fix": "RHSA-2021:3447",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3447",
      "released": "2021-09-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "ol 8",
      "fixedVersion": "0:4.18.0-305.17.1.el8_4",
      "fix": "ELSA-2021-3447",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3447",
      "released": "2021-09-08T00:00:00Z"
    }
  ],
  "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"
  }
}