CVE-2026-99013
kernel: Bluetooth: ISO: Reject concurrent BIS listener setup
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's Bluetooth subsystem. A local user could cause a Denial of Service (DoS) due to a race condition during concurrent setup of Broadcast Isochronous Stream (BIS) socket listeners. By issuing simultaneous listen calls on the same broadcast socket, an attacker can trigger a use-after-free memory error, leading to a system crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference