Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.
References5
- git.kernel.org/stable/c/5761d003daa987ac81463f570713ce9c9dd204e5
- git.kernel.org/stable/c/64d1645f26aa49b5a86ba2fccd0bb6749ea725a6
- git.kernel.org/stable/c/963fb4b8e7d1ab07b4ae45bf15d41e667c88caca
- git.kernel.org/stable/c/e8f9fef362bab431d95371d3406bc720350290c3
- git.kernel.org/stable/c/fa812cfa81aa3d4a7b6ce8277979af57b3f79712
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 17 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.