CVE-2025-68815

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18.0-rc7-00105-g7e9f13163c13-dirty

Description The Linux kernel contains an issue within the ets scheduling class. When a user changes a drr class to a strict one, the code fails to check if that class is present in the active list and remove it. If a strict class, previously in the active list, is changed back to drr, it can be added to the active list twice. This can lead to a system crash, as demonstrated by a 'list add double add' error message. The issue is triggered by specific tc commands followed by ping commands.

Recommendations Update to Linux kernel version 6.18.0-rc7-00105-g7e9f13163c13-dirty or a later version that includes the fix.