Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hci_conn in hci_sync callbacks also needs to hold refcount to avoid UAF. Take appropriate locks for hci_conn lookups, and take refcount for hci_conn pointers stored in mgmt_pending_cmd so that the pointer stays valid. When accessing conn->state, ensure hdev->lock is held to avoid data race.
References6
- git.kernel.org/stable/c/84674dd1d3192ecb050827d3148642609c0c9dbb
- git.kernel.org/stable/c/b56f2ecafc08f372bf0529f9c4f3f429cb1702dc
- git.kernel.org/stable/c/d5b3b484b62bb0f4542e7622789d28871626cdf0
- git.kernel.org/stable/c/da55f570191d5d72f10c607a7043b947eb05ea46
- git.kernel.org/stable/c/ecdcb55ea1c01dda074406f38058785a69526734
- git.kernel.org/stable/c/f915e74b6f18293d1d69a2a3305ef321ff7c0172
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 12 November 2026
- CWE
- CWE-416
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