Lucene search
+L

CVE-2026-64036

🗓️ 19 Jul 2026 15:39:24Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 45 Views🌐 WEB

Fix BPF kfunc css_rstat_updated to validate cpu before rstat access.

Related
Detection
Affected
Refs
Paths
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.1–6.18.34
linuxlinux_kernelRange6.19.0–7.0.11
linuxlinux_kernelRange7.1.0≥
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "block/blk-cgroup.c",
      "include/linux/cgroup.h",
      "kernel/cgroup/rstat.c",
      "mm/memcontrol.c"
    ],
    "versions": [
      {
        "version": "a319185be9f5ad13c2a296d448ac52ffe45d194c",
        "lessThan": "6a01413a4e8fcb0263d7bef5075c5f8f4eb3a8b6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a319185be9f5ad13c2a296d448ac52ffe45d194c",
        "lessThan": "fd2bd9fa7700ddf28296486b2598cff2f80cc819",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a319185be9f5ad13c2a296d448ac52ffe45d194c",
        "lessThan": "8817005efbdfdf5d4e4814cb5dc52b53d12917d7",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "block/blk-cgroup.c",
      "include/linux/cgroup.h",
      "kernel/cgroup/rstat.c",
      "mm/memcontrol.c"
    ],
    "versions": [
      {
        "version": "6.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
cpupathkernel/cgroup/rstat.cBPF kfunc css_rstat_updated() accepts a caller-provided cpu argument and may access per-cpu rstat lookups without validating the cpu value, leading to an array-index-out-of-bounds when an invalid CPU is passed. The fix adds cpu validation and centralizes the implementation in __css_rstat_updated().CWE-129

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

05 Aug 2026 12:38Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.8
EPSS0.00173
45