CVE-2025-40318

Summary

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once

hci_cmd_sync_dequeue_once() does lookup and then cancel the entry under two separate lock sections. Meanwhile, hci_cmd_sync_work() can also delete the same entry, leading to double list_del() and "UAF".

Fix this by holding cmd_sync_work_lock across both lookup and cancel, so that the entry cannot be removed concurrently.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf00f36db76eb8fd10d13e80e2590f23b5beaa54d < 0a94f7e017438935c09ef833a1aa908ad9875213affected
LinuxLinux1499f79995c7ee58e3bfeeff75f6d1b37dcda881 < 932c0a4f77ac13e526fdd5b42914d29c9821d389affected
LinuxLinux505ea2b295929e7be2b4e1bc86ee31cb7862fb01 < ae76cf6c2c842944c6514c57df54d728f1916553affected
LinuxLinux505ea2b295929e7be2b4e1bc86ee31cb7862fb01 < 9cd536970192b72257afcdfba0bfc09993e6f19caffected
LinuxLinux505ea2b295929e7be2b4e1bc86ee31cb7862fb01 < 09b0cd1297b4dbfe736aeaa0ceeab2265f47f772affected
LinuxLinux357603f4d396d85fbf0045512efaf1d7f7394ed7affected
LinuxLinux6.1.120 < 6.1.159affected
LinuxLinux6.6.51 < 6.6.117affected
LinuxLinux6.8.9 < 6.9affected
LinuxLinux6.9affected
LinuxLinux0 < 6.9unaffected
LinuxLinux6.1.159 <= 6.1.*unaffected
LinuxLinux6.6.117 <= 6.6.*unaffected
LinuxLinux6.12.58 <= 6.12.*unaffected
LinuxLinux6.17.8 <= 6.17.*unaffected
LinuxLinux6.18 <= *unaffected

Weaknesses

References