CVE-2026-53126: blk-cgroup: fix disk reference leak in blkcg_maybe_throttle_current()
Published Jun 24, 2026
·Updated
blk-cgroup: fix disk reference leak in blkcgmaybethrottlecurrent()
Affected Software
2 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.139.1-1<6.6.143.1-1
6.6.143.1-1
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 24, 2026
CVE Published
via MITRE·04:30 PM
Data Sourced
via MITRE·04:30 PM
Description
Data Sourced
via NVD·05:17 PM
Description
Jun 27, 2026
Data Sourced
via Microsoft·08:08 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:08 AM
Affected Software
Updated
via Microsoft·08:08 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-53126?
CVE-2026-53126 has a risk level of 17, indicating a significant potential impact.
2
How do I fix CVE-2026-53126?
To fix CVE-2026-53126, ensure you update your Linux kernel to the patched version that addresses the disk reference leak.
3
What system components are affected by CVE-2026-53126?
CVE-2026-53126 affects the blk-cgroup functionality within the Linux kernel.
4
What type of vulnerability is CVE-2026-53126?
CVE-2026-53126 is a resource leak vulnerability due to a missing clean-up routine in the kernel's code.
5
Who should be concerned about CVE-2026-53126?
Administrators of systems running affected versions of the Linux kernel should be concerned about CVE-2026-53126.