CVE-2026-23088

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.16.3+deb14-amd64 #1

Description A flaw exists in the Linux kernel related to the handling of synthetic stacktraces within the tracing subsystem. Specifically, when creating a synthetic event based on an existing event with a stacktrace field, and subsequently using that field in a new synthetic event, a kernel crash can occur. This is due to the stacktrace field not being correctly identified as a dynamic event, leading to it being treated as a normal field during data retrieval. The issue arises when enabling the affected event or using it in a histogram. The root cause is that the metadata is retrieved instead of a dynamic array.

Recommendations Update to Linux kernel version 6.16.3+deb14-amd64 #1 or later to address this issue.