CVE-2023-53366: block: be a bit more careful in checking for NULL bdev while polling
Published Sep 17, 2025
·Updated
block: be a bit more careful in checking for NULL bdev while polling
Affected Software
4 affected components
Linux Linux kernel
Microsoft cbl2 kernel 5.15.186.1-1
Linux Linux kernel>=5.15<6.1.16
Linux Linux kernel>=6.2<6.2.3
Event History
Sep 17, 2025
CVE Published
via MITRE·02:56 PM
Data Sourced
via MITRE·02:56 PM
Description
Data Sourced
via NVD·03:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Dec 13, 2025
Data Sourced
via Microsoft·01:01 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2023-53366?
CVE-2023-53366 is a vulnerability in the Linux kernel that can cause a crash due to improper NULL pointer checks.
2
How do I fix CVE-2023-53366?
To fix CVE-2023-53366, you should update your Linux kernel to the latest stable version that has patched this vulnerability.
3
What versions of the Linux kernel are affected by CVE-2023-53366?
CVE-2023-53366 affects various versions of the Linux kernel where the vulnerability has not been addressed.
4
Is CVE-2023-53366 exploitable?
CVE-2023-53366 can be exploited in scenarios involving polled I/O operations, leading to potential application crashes.
5
Who discovered CVE-2023-53366?
CVE-2023-53366 was reported by an individual named Wei, highlighting issues with NULL pointer checks in the Linux kernel.