CVE-2026-53265: dm cache policy smq: check allocation under invalidate lock
Published Jun 25, 2026
·Updated
dm cache policy smq: check allocation under invalidate lock
Affected Software
15 affected componentsFixes available
Linux Linux kernel (dm-cache smq)
Microsoft azl3 kernel 6.6.141.1-1<6.6.143.1-1
6.6.143.1-1
Linux Linux kernel>=6.6.141<6.6.143
Linux Linux kernel>=6.12.91<6.12.94
Linux Linux kernel>=6.18.33<6.18.36
Linux Linux kernel>=7.0.10<7.0.13
Linux Linux kernel=5.10.258
Linux Linux kernel=5.15.209
Linux Linux kernel=6.1.175
Linux Linux kernel=7.1-rc1
Linux Linux kernel=7.1-rc2
Linux Linux kernel=7.1-rc3
Linux Linux kernel=7.1-rc4
Linux Linux kernel=7.1-rc5
Linux Linux kernel=7.1-rc6
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.143.1-1
Event History
Jun 25, 2026
CVE Published
via MITRE·08:39 AM
Data Sourced
via MITRE·08:39 AM
DescriptionSeverity
Data Sourced
via NVD·09:16 AM
RemedyDescriptionSeverityAffected Software
Jun 27, 2026
Data Sourced
via Microsoft·08:12 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:12 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the risk level of CVE-2026-53265?
CVE-2026-53265 has a risk rating of 37, indicating a moderate severity.
2
What does CVE-2026-53265 affect?
CVE-2026-53265 affects the Linux kernel specifically within the dm-cache module.
3
How can I mitigate CVE-2026-53265?
To mitigate CVE-2026-53265, ensure that your Linux kernel is updated to the latest version that includes the patch for this vulnerability.
4
Is there a patch available for CVE-2026-53265?
Yes, a patch for CVE-2026-53265 is included in recent updates of the Linux kernel.
5
What is the nature of the issue in CVE-2026-53265?
CVE-2026-53265 involves a locking issue in the dm cache policy which could lead to concurrency problems under certain conditions.