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CVE-2026-64123 net: hsr: defer node table free until after RCU readers

🗓️ 19 Jul 2026 15:40:21Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

CVE-2026-64123: Defer HSR node table free until after read-copy-update readers to avoid use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-64123
19 Jul 202615:40
attackerkb
CVE
CVE-2026-64123
19 Jul 202615:40
cve
EUVD
EUVD-2026-45808
19 Jul 202615:40
euvd
NVD
CVE-2026-64123
19 Jul 202616:17
nvd
OSV
CVE-2026-64123 net: hsr: defer node table free until after RCU readers
19 Jul 202615:40
osv
OSV
DEBIAN-CVE-2026-64123
19 Jul 202616:17
osv
OSV
UBUNTU-CVE-2026-64123
20 Jul 202600:00
osv
Positive Technologies
PT-2026-61440
19 Jul 202600:00
ptsecurity
RedhatCVE
CVE-2026-64123
20 Jul 202607:54
redhatcve
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-64123
20 Jul 202600:00
nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/hsr/hsr_framereg.c"
    ],
    "versions": [
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "0ea70fb46940620848c08d9d399455c9e82fecdb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "8be6685cdd1255bcc85f9b59e4bfc313aefc5c1b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "c5580114e0492bcd2e0a37613ed4c311e3fa3d4d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "7713f4aafb577ff49fa67f0488d9c7dddc64d6ce",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "6324423a8e6591f41a16c09a8f9a84e554ac147c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "8c3af18bb0d7c921a5219194037509463eb2ffde",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9a1e627405d68d475a3c1f35e685ccfb5bbe668",
        "lessThan": "aaec7096f9961eb223b5b149abe9495525c205d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "08523d5a2f4a9e4202e00d282c164d453cabe2d2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.2.12",
        "lessThan": "5.3",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/hsr/hsr_framereg.c"
    ],
    "versions": [
      {
        "version": "5.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.3",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "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"
      }
    ]
  }
]

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20 Jul 2026 13:43Current
CVSS 3.17.8
EPSS0.00172
27