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CVE-2025-40318 is a race condition in the Linux kernel Bluetooth hci_sync subsystem. The hci_cmd_sync_dequeue_once() function performed lookup and cancellation of a command-synchronization entry under separate cmd_sync_work_lock critical sections. During the interval between these operations, hci_cmd_sync_work() could remove the same entry. The resulting concurrent deletion could invoke list removal twice and cause a use-after-free. The upstream fix retains cmd_sync_work_lock across both lookup and cancellation, preventing concurrent removal of the entry.
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A Linux kernel Bluetooth vulnerability involving a race condition in hci_cmd_sync_dequeue_once.
A Linux kernel Bluetooth vulnerability involving a race in hci_cmd_sync_dequeue_once.
A Linux kernel Bluetooth hci_sync race condition vulnerability in hci_cmd_sync_dequeue_once.
A Linux kernel Bluetooth hci_sync race condition causing a use-after-free due to concurrent deletion of the same entry in hci_cmd_sync_dequeue_once() and hci_cmd_sync_work().
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Cross-references every affected SKU, including bundled OEM variants.
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