CVE-2026-98690
kernel: thunderbolt: Fix domain reference leak when DPRX read is canceled
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 22, 2026
Description
A flaw was found in the Linux kernel's Thunderbolt subsystem. This flaw allows a local user to cause a Denial of Service (DoS) by causing kernel cleanup operations to hang indefinitely. When a DisplayPort (DP) tunnel is disconnected before an internal read operation completes, the driver leaks an internal domain reference count. Consequently, subsequent attempts to unbind the driver block indefinitely while waiting for the resource to release.
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 · 1.9CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
CWE-911 · Improper Update of Reference Count