Threats Tagged 'cve-2026-99009'
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Threats Tagged 'cve-2026-99009'
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A locking order vulnerability in the Linux kernel's Bluetooth RFCOMM implementation (CVE-2026-99009) has been resolved. The issue involves a circular locking dependency between rfcomm_mutex and hdev->lock during RFCOMM socket connection and HCI event handling, which can cause lockdep warnings and potential deadlocks. The fix changes the order of locking by connecting the session socket before acquiring rfcomm_mutex, eliminating the circular dependency. Additional safeguards were added to handle race conditions where sockets or DLCs might be closed during connection setup. Join the discussion | GCVE Database | 10/23/2026, 15:31:34 UTC Added: 10/23/2026, 18:43:27 UTC |
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