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CVE-2026-64408

8.8 high SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 8

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. CwesCWE-416NVD modified 2026-10-19 21:17
  2. StatusAnalyzed → ModifiedNVD modified 2026-10-19 21:17
  3. First seenCVSS 8.8 · linuxNVD modified 2026-10-16 16:19

Affected (CPE criteria) 3

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.2:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.2:rc2:*:*:*:*:*:*

References 8