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CVE-2026-74541 Bluetooth: ISO: clear iso_data always when detaching conn from hcon

🗓️ 15 Aug 2026 12:27:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 35 Views

Linux kernel Bluetooth ISO use-after-free in iso_conn_hold_unless_zero during iso_sock_release.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/iso.c"
    ],
    "versions": [
      {
        "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
        "lessThan": "cc1d39946d62bc568551dfb81149724de1e91338",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
        "lessThan": "7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
        "lessThan": "63c0f396a18b767eb28e895eb95bbdce6c172c59",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
        "lessThan": "69a4a7b162b3db6ac337e3094cdee38f24d42ff7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
        "lessThan": "d57e506f6a1e3929611340fae87c1e4823f4d85c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c03a10bd5b6ccb22921e04bcddc987410df7e7a9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.5.12",
        "lessThan": "6.6",
        "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/bluetooth/iso.c"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Aug 2026 05:48Current
CVSS 3.18.8
EPSS0.00247
35