CVE-2026-99014
kernel: Bluetooth: hci_sync: Fix command skb lifetime during scan 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 race condition between concurrent worker threads during Periodic Advertising (PA) sync scan setup can cause a command buffer to be freed while still in use. A local attacker could exploit this use-after-free flaw to cause a Denial of Service (DoS) by crashing the system or potentially escalate privileges.
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 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference