PT-2025-14352

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been identified, where the creation of classes with TC H ROOT can cause premature termination of the qdisc tree traversal. This leads to incorrect...

PT-2025-6939

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to the fixed version Description: A vulnerability in the Linux kernel has been resolved, specifically in the netem module. The issue arises from the qdisc tree reduce backlog function not notifying the parent qdisc...

CVE-2024-53164 net: sched: fix ordering of qlen adjustment

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ordering of qlen adjustment Changes to sch-q.qlen around qdisctreereducebacklog need to happen before a call to said function because otherwise it may fail to notify parent qdiscs when the child is about to become...

PT-2024-35609

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74 Description The issue concerns the Linux kernel's network scheduling subsystem, specifically the qdisc tree reduce backlog function. Changes to sch-q.qlen around this function need to occur before the...

PT-2024-9881

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the use of memory after it has been freed in the qdisc tree reduce backlog function of the Linux kernel. This can lead to a denial of service. The problem arise...

PT-2024-8421

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.74-syzkaller Description The issue is related to a lockdep splat in the qdisc tree reduce backlog function, which is called with the qdisc lock held, not RTNL. This can lead to suspicious RCU usage. The qdisc...