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CVE-2026-64557

🗓️ 29 Jul 2026 08:01:47Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 48 Views

Bluetooth L2CAP fix use-after-free in l2cap_sock_new_connection_cb by having the core own the child channel lifetime.

Related
Detection
Affected
Refs
Vulners
CNA
Node
OR
linuxlinux_kernelRange3.136.1.178
linuxlinux_kernelRange6.2.06.6.145
linuxlinux_kernelRange6.7.06.12.97
linuxlinux_kernelRange6.13.06.18.40
linuxlinux_kernelRange6.19.07.1.5
linuxlinux_kernelRange7.2.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/bluetooth/l2cap.h",
      "net/bluetooth/6lowpan.c",
      "net/bluetooth/l2cap_core.c",
      "net/bluetooth/l2cap_sock.c",
      "net/bluetooth/smp.c"
    ],
    "versions": [
      {
        "version": "8ffb929098a56939ac71509302eeab5b207bf262",
        "lessThan": "b39298044e5534612511a2ff5de03ba5f6e7a820",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ffb929098a56939ac71509302eeab5b207bf262",
        "lessThan": "8c37e4338c801ebb8cee52436c01c41e009f6e87",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ffb929098a56939ac71509302eeab5b207bf262",
        "lessThan": "84e718b6a814edc84159361f9f454a4e92ae91ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ffb929098a56939ac71509302eeab5b207bf262",
        "lessThan": "36da806f7fbaee56ad9e81859deec203f9728700",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ffb929098a56939ac71509302eeab5b207bf262",
        "lessThan": "733e76e74e406c1d1ddc7369420dd8a47f48bb8a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ffb929098a56939ac71509302eeab5b207bf262",
        "lessThan": "6fef032af0092ed5ccb767239a9ac1bc38c08a40",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/bluetooth/l2cap.h",
      "net/bluetooth/6lowpan.c",
      "net/bluetooth/l2cap_core.c",
      "net/bluetooth/l2cap_sock.c",
      "net/bluetooth/smp.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "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 05:18Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.18.8
EPSS0.00236
48