CVE-2023-53421: blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats()
Published Sep 18, 2025
·Updated
blk-cgroup: Reinit blkgiostatset after clearing in blkcgresetstats()
Affected Software
4 affected components
Linux Linux kernel
Microsoft cbl2 kernel 5.15.186.1-1
Linux Linux kernel>=5.5<6.3.13
Linux Linux kernel>=6.4<6.4.4
Event History
Sep 18, 2025
CVE Published
via MITRE·04:04 PM
Data Sourced
via MITRE·04:04 PM
Description
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Dec 12, 2025
Data Sourced
via Microsoft·01:02 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2023-53421?
The severity of CVE-2023-53421 has been classified as high due to its impact on the Linux kernel.
2
How do I fix CVE-2023-53421?
To fix CVE-2023-53421, update the Linux kernel to the latest patched version.
3
What systems are affected by CVE-2023-53421?
CVE-2023-53421 affects the Linux kernel across various distributions.
4
What type of vulnerability is CVE-2023-53421?
CVE-2023-53421 is a kernel security vulnerability related to block I/O accounting.
5
Is there a workaround for CVE-2023-53421?
Currently, there are no known effective workarounds for CVE-2023-53421, making an update essential.