CVE-2026-99217

kernel: kernel: Denial of Service via deadlock during failed process creation

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Severity

Moderate

Red Hat Product Security

4.1

CVSS 3.1

Review impact separately from score.

Published · November 3, 2026

Updated · November 3, 2026

Description

A flaw was found in the Linux kernel. A race condition during process creation cleanup can cause an internal deadlock when a process creation operation fails while closing an associated file descriptor. A local user could exploit this vulnerability to cause a Denial of Service (DoS) by preventing new processes from being created across the system.

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 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-833 · Deadlock