CVE-2026-31639
kernel: rxrpc: Fix key reference count leak from call->key
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 24, 2026
Updated · June 28, 2026
Description
A flaw was found in the rxrpc subsystem of the Linux kernel. When a client call is created, a reference to a key is obtained but not properly released when the call is destroyed. This oversight leads to a key reference count leak, which can accumulate over time. This resource exhaustion could eventually allow a local attacker to cause a Denial of Service (DoS) by consuming available system resources.
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-911 · Improper Update of Reference Count