CVE-2026-90163
kernel: smb/server: call ksmbd_proc_cleanup() on module init failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 13, 2026
Description
A flaw was found in the Linux kernel's ksmbd (SMB server) component. When the ksmbd module fails to initialize, certain resources, such as the proc tree and per-CPU counters, are not properly deallocated. This resource leak can be exploited by a local user, potentially leading to a Denial of Service (DoS) condition 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-459 · Incomplete Cleanup