CVE-2026-31467

kernel: Linux kernel: Denial of Service in erofs filesystem

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 22, 2026

Updated · October 5, 2026

Description

A flaw was found in the Linux kernel's erofs filesystem. A remote attacker can exploit this vulnerability without requiring any privileges. This issue occurs when insufficient memory during a memory mapping operation (vm_map_ram()) in the bio completion path leads to a deadlock, causing 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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-833 · Deadlock