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CVE-2026-64574

🗓️ 05 Aug 2026 08:08:10Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 91 Views🌐 WEB

Fix use-after-free in wifi mac80211 when updating links on error; remove debugfs entries before freeing links.

Related
Detection
Affected
Refs
Paths
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.4–6.6.148
linuxlinux_kernelRange6.7.0–6.12.101
linuxlinux_kernelRange6.13.0–6.18.42
linuxlinux_kernelRange6.19.0–7.1.6
linuxlinux_kernelRange7.2.0≥
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mac80211/link.c"
    ],
    "versions": [
      {
        "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566",
        "lessThan": "329589417214d3b7221432e5b266ed2bba7ff674",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566",
        "lessThan": "c57d97f381306bbfba174e8f708419e007824e0c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566",
        "lessThan": "0f7eaeb950adb77f71beb546e5ab30f90b41fe6f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566",
        "lessThan": "901a73523e093beff123b54b1ceaf3113f18acc9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566",
        "lessThan": "952c02b33f56207a160421bcd61e7ac53c9c59ae",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mac80211/link.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
link-1/txpowerpath/link-1/txpowerUse-after-free vulnerability in the Linux kernel's mac80211 driver where debugfs entries for new links are not properly removed during an error path, allowing a read operation to dereference freed memory.CWE-416

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19 Oct 2026 21:17Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.8
EPSS0.00157
SSVC
91