CVE Database›Document archive›CVE-2026-90384

CVE-2026-90384

kernel: iomap: release the folio batch on iomap callback failures

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 6, 2026

Description

A flaw was found in the Linux kernel's iomap subsystem. This issue arises when iomap callback functions, specifically ->iomap_begin(), fail to release a "folio batch" of memory pages during certain error conditions. This resource management oversight, particularly when used by filesystems like XFS, could lead to unreleased memory resources. While the direct security impact is not explicitly detailed, this could potentially result in system instability or 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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime