CVE-2026-64408
Bluetooth: bnep: pin L2CAP connection during netdev registration
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2026 |
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Affected Versions
Linux / Linux
65f53e9802dbfae0e5758a91793c3f5f8bece49b < 390b5db3ff8745187f094c4e915663b7b1f98944 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 46a88784c4c9b96954dd86f747ce93f65efa1302 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 551ae773ec64045b4e72099132654887e0270bcc 65f53e9802dbfae0e5758a91793c3f5f8bece49b < ae215c5b6422d8eda443b861b124bd1be6969c31 65f53e9802dbfae0e5758a91793c3f5f8bece49b < df22adc7eafc22e651561813c11dc51a796b12ee 65f53e9802dbfae0e5758a91793c3f5f8bece49b < a6b22dbd80926556290ad2243be25218d6956a19 65f53e9802dbfae0e5758a91793c3f5f8bece49b < 563a8573047182f550b1e1e030615755cd8c41da 65f53e9802dbfae0e5758a91793c3f5f8bece49b < bb067a99a0356196c0b89a95721985485ebce5a5
Linux / Linux
3.13
References
git.kernel.org: https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944 git.kernel.org: https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302 git.kernel.org: https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc git.kernel.org: https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31 git.kernel.org: https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee git.kernel.org: https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19 git.kernel.org: https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da git.kernel.org: https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5