CVE-2026-64415

kernel: mm/swap: add cond_resched() in swap_reclaim_full_clusters to prevent softlockup

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · October 13, 2026

Description

A flaw was found in the Linux kernel's memory management (mm/swap) component. Under heavy memory and swap stress, a local attacker could trigger a softlockup during large swap cluster reclaim operations. This vulnerability can lead to a Denial of Service (DoS), making the system unresponsive.

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-770 · Allocation of Resources Without Limits or Throttling