CVE-2026-99240

kernel: kernel: Denial of Service via division by zero in DAMON subsystem

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Severity

Moderate

Red Hat Product Security

4.4

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's Data Access Monitor (DAMON) subsystem. A local user can trigger a division-by-zero error by configuring a monitoring scheme with a quota target value of zero. This failure can cause the kernel to crash, resulting in a Denial of Service (DoS).

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 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-369 · Divide By Zero