CVE-2026-23183

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.19.0-rc6-next-2026012

Description A flaw exists in the Linux kernel's cgroup/dmem subsystem where a NULL pointer dereference can occur when setting the maximum memory limit. This issue is triggered when attempting to set a maximum value without proper validation of the region name, such as using the command "echo test/region0 > dmem.max". The dereference leads to a kernel panic, potentially causing system instability.

Recommendations Update to Linux kernel version 6.19.0-rc6-next-2026012 or a later version to address this issue.