CVE-2023-53292: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none
Published Sep 16, 2025
·Updated
blk-mq: fix NULL dereference on q->elevator in blkmqelvswitchnone
Affected Software
2 affected components
Linux Linux kernel<6.4.7
Microsoft cbl2 kernel 5.15.186.1-1
Event History
Sep 16, 2025
CVE Published
via MITRE·08:11 AM
Data Sourced
via MITRE·08:11 AM
Description
Data Sourced
via NVD·08:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Dec 4, 2025
Data Sourced
via Microsoft·01:01 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·09:01 AM
DescriptionSeverityWeakness
Updated
via Microsoft·09:01 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2023-53292?
CVE-2023-53292 has a high severity rating due to potential NULL dereference issues that can lead to system crashes.
2
How do I fix CVE-2023-53292?
To fix CVE-2023-53292, users should update the Linux kernel to version 6.4.7 or later.
3
What systems are affected by CVE-2023-53292?
CVE-2023-53292 affects the Linux kernel versions prior to 6.4.7 and the Microsoft cbl2 kernel 5.15.186.1-1.
4
What is the impact of CVE-2023-53292 on affected systems?
The impact of CVE-2023-53292 can result in system instability and potential crashes due to NULL dereference.
5
How was CVE-2023-53292 discovered?
CVE-2023-53292 was discovered during routine code review, highlighting a vulnerability in the blk-mq subsystem.