CVE-2026-46164

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

Description A double free issue exists in the Linux kernel within the create space info sub group() function. When kobject init and add() fails, the execution flow triggers kobject put(&sub group->kobj), which leads to space info release() and subsequently kfree(sub group). Upon returning to create space info sub group(), the error return from btrfs sysfs add space info type() triggers a second kfree(sub group) call, resulting in the memory being freed twice.

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