CVE-2026-90219
kernel: RDMA/cxgb4: Free debugfs on registration failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 6, 2026
Description
A flaw was found in the Linux kernel's RDMA (Remote Direct Memory Access) cxgb4 module. When an RDMA device registration fails, the debugfs entries, which are used for debugging, are not properly deallocated. This oversight can lead to a resource leak, where these entries persist in memory even after the device is freed. Over time, this accumulation of unreleased resources could potentially lead to a Denial of Service (DoS) due to resource exhaustion.
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-772 · Missing Release of Resource after Effective Lifetime