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CVE-2026-52960

ceph: put folios not suitable for writeback

HIGH
7.5
CVSS Score
Published: June 24, 2026 at 04:28 PM UTC
Updated: October 21, 2026 at 01:19 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.15 ≤ v < 7.0.107.17.1 rc17.1 rc27.1 rc3ce80b76dd32764cc914975777e058d4fae4f0ea0
Vendor states this is fixed in 544576f0f05c4a759806acddfaaeb686f14fb4b0 (fixed)
Vendor states this is fixed in 86921e890fe1dea9791fb70bec552516fd47716a (fixed)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Patch
Source: cverecord
https://git.kernel.org/stable/c/86921e890fe1dea9791fb70bec552516fd47716a
Patch
Source: cverecord
https://git.kernel.org/stable/c/544576f0f05c4a759806acddfaaeb686f14fb4b0
Source: cverecord
https://git.kernel.org/stable/c/349499a65b6b5fb6f66ba3673598ab558f48c544

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-401

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