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CVE-2025-40318

Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected f00f36db76eb8fd10d13e80e2590f23b5beaa54d before 0a94f7e017438935c09ef833a1aa908ad9875213; affected 1499f79995c7ee58e3bfeeff75f6d1b37dcda881 before 932c0a4f77ac13e526fdd5b42914d29c9821d389; affected 505ea2b295929e7be2b4e1bc86ee31cb7862fb01 before ae76cf6c2c842944c6514c57df54d728f1916553; affected 505ea2b295929e7be2b4e1bc86ee31cb7862fb01 before 9cd536970192b72257afcdfba0bfc09993e6f19c; affected 505ea2b295929e7be2b4e1bc86ee31cb7862fb01 before 09b0cd1297b4dbfe736aeaa0ceeab2265f47f772; affected 357603f4d396d85fbf0045512efaf1d7f7394ed7; affected 6.1.120 before 6.1.159; affected 6.6.51 before 6.6.117; affected 6.8.9 before 6.9
Linux / Linuxaffected 6.9; unaffected 0 before 6.9; unaffected 6.1.159 through 6.1.*; unaffected 6.6.117 through 6.6.*; unaffected 6.12.58 through 6.12.*; unaffected 6.17.8 through 6.17.*; unaffected 6.18 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.