CVE-2026-64408High· 8.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: pin L2CAP connection during netdev registration bnep_add_connection() reads the L2CAP connection without holding the channel lock, then passes its HCI…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.3%
Last analysed / modified upstream
0.3% → 0.3%
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: bnep: pin L2CAP connection during netdev registration
bnep_add_connection() reads the L2CAP connection without holding the channel lock, then passes its HCI device to register_netdev(). Controller teardown can clear and release that connection concurrently, leaving the network device registration path to dereference a freed parent device.
Take a reference to the L2CAP connection while holding the channel lock. Retain it until register_netdev() has taken the parent device reference.
Linux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 390b5db3ff8745187f094c4e915663b7b1f98944Linux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 46a88784c4c9b96954dd86f747ce93f65efa1302Linux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 551ae773ec64045b4e72099132654887e0270bccLinux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < ae215c5b6422d8eda443b861b124bd1be6969c31Linux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < df22adc7eafc22e651561813c11dc51a796b12eeLinux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < a6b22dbd80926556290ad2243be25218d6956a19Linux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 563a8573047182f550b1e1e030615755cd8c41daLinux >= 65f53e9802dbfae0e5758a91793c3f5f8bece49b < bb067a99a0356196c0b89a95721985485ebce5a5Linux 3.13Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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