Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is necessary, otherwise later iso_conn_free() will UAF. Fix clearing of iso_data in iso_sock_disconn() Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on iso_sock_release() followed by hci_abort_conn_sync().
References5
- git.kernel.org/stable/c/63c0f396a18b767eb28e895eb95bbdce6c172c59
- git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7
- git.kernel.org/stable/c/7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0
- git.kernel.org/stable/c/cc1d39946d62bc568551dfb81149724de1e91338
- git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c
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: 16 · 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.