Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before 390b5db3ff8745187f094c4e915663b7b1f98944; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before 46a88784c4c9b96954dd86f747ce93f65efa1302; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before 551ae773ec64045b4e72099132654887e0270bcc; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before ae215c5b6422d8eda443b861b124bd1be6969c31; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before df22adc7eafc22e651561813c11dc51a796b12ee; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before a6b22dbd80926556290ad2243be25218d6956a19; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before 563a8573047182f550b1e1e030615755cd8c41da; affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b before bb067a99a0356196c0b89a95721985485ebce5a5 |
| Linux / Linux | affected 3.13; unaffected 0 before 3.13; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944
- https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302
- https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc
- https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31
- https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee
- https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19
- https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da
- https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5
ADP enrichment
No English description supplied.
No references supplied.