CVE-2026-52960 HIGH

CVE-2026-52960: ceph: put folios not suitable for writeback

Vendor Linux
Product Linux
Published June 24, 2026
Last update June 29, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: ceph: put folios not suitable for writeback The batch holds references to the folios (see `filemap_get_folios`, `folio_batch_release`), so we need to `folio_put` the folios we remove. Tested on v6.18.

Key dates

02Disclosure timeline

June 24, 2026 CVE published
June 29, 2026 Record updated