CVE-2026-99135

kernel: kernel: Denial of Service via infinite loop in dm-integrity discard handling

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · October 28, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's Device Mapper integrity (dm-integrity) subsystem. When processing storage discard requests under low-memory conditions with large integrity tag sizes, an error-handling path fails to properly advance the processing loop. A local user could exploit this condition to trigger an infinite loop in the kernel, leading to a system hang and 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 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')