CVE-2023-53786

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel related to device mapper (dm) flakey functionality. A specific command involving dmsetup create flakey with a crafted table can cause a NULL pointer dereference, leading to a system crash. The command utilizes blockdev --getsize /dev/ram0 to determine block size and attempts to create a device with a potentially invalid configuration. The issue is triggered when comparing a potentially NULL value, specifically arg name, without a prior check.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.