CVE-2026-53061

Data loss via premature dm-cache cleanliness check

Published Jun 24, 2026 · Updated Jun 24, 2026

Data corruption in Linux Kernel dm-cache allows local users to lose cached data during a passthrough-mode transition with dirty mappings. The cleanliness check runs during table creation instead of preresume, so an LVM-preloaded table can pass while metadata updates create dirty mappings. Exploitation requires a writeback cache, an inactive passthrough table, a concurrent dirtying write, and permission to resume the table; stale mappings can destroy data.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Data corruption in Linux Kernel dm-cache allows local users to lose cached data during a passthrough-mode transition with dirty mappings. The cleanliness check runs during table creation instead of preresume, so an LVM-preloaded table can pass while metadata updates create dirty mappings. Exploitation requires a writeback cache, an inactive passthrough table, a concurrent dirtying write, and permission to resume the table; stale mappings can destroy data.

The record

CVE
CVE-2026-53061
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1485
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <01b22656d8a68dbeae59f8b80866e7b11936b20a
  2. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <12105c7f18375d7615dad7605d89eadae7eb12a6
  3. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <1443c32f24d6d8bcdf4beceef2afc09290b98717
  4. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <21c503d60a257e54ca3ac58e2721bd24501d5bde
  5. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <322586745bd1a0e5f3559fd1635fdeb4dbd1d6b8
  6. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <5c98a3f1d7a554c9e920aa31daf92af6b5bbb8cc
  7. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <bd5a2c1018938e6b32670728bdb32a3f0efff00f
  8. Affected versionversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <c2e86f647561fcf5e1c6eba7d75e9e0c4299c94d
  9. Affected versionversion=3.13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <01b22656d8a68dbeae59f8b80866e7b11936b20a; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <12105c7f18375d7615dad7605d89eadae7eb12a6; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <1443c32f24d6d8bcdf4beceef2afc09290b98717; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <21c503d60a257e54ca3ac58e2721bd24501d5bde; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <322586745bd1a0e5f3559fd1635fdeb4dbd1d6b8; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <5c98a3f1d7a554c9e920aa31daf92af6b5bbb8cc; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <bd5a2c1018938e6b32670728bdb32a3f0efff00f; version=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <c2e86f647561fcf5e1c6eba7d75e9e0c4299c94d; version=3.13

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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