CVE-2026-23245

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

Description The Linux kernel contains an issue in the networking scheduler (net/sched) related to the act gate action. Specifically, the act gate action can be replaced while a hrtimer callback or dump path is traversing the schedule list. This can lead to inconsistencies when handling the schedule list. The resolution involves converting parameters to an RCU-protected snapshot and swapping updates under tcf lock, freeing the previous snapshot via call rcu(). When a replacement omits the entry list, the existing schedule is preserved to maintain the effective state.

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