Linux Distros Unpatched Vulnerability : CVE-2026-52997

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: schdualpi2: drain both C-queue and L-queue in dualpi2change Fix dualpi2change to correctly enforce updated limit and memlimit values after a...

CVE-2026-52997

A flaw was found in the Linux kernel's schdualpi2 qdisc queueing discipline component. When dualpi2change attempts to enforce updated limit and memory limit values, it may incorrectly try to dequeue packets from an empty C-queue while packets are present in the L-queue. This can lead to a NULL sk...

EUVD-2026-38865

In the Linux kernel, the following vulnerability has been resolved: net/sched: schdualpi2: drain both C-queue and L-queue in dualpi2change Fix dualpi2change to correctly enforce updated limit and memlimit values after a configuration change of the dualpi2 qdisc. Before this patch, dualpi2change...

CVE-2026-52997

The CVE-2026-52997 entry documents a Linux kernel net/sched vulnerability in sch_dualpi2 (dualpi2_change) where the code could dereference a NULL skb when switching backlog/memlimit if packets were queued in the L-queue while the C-queue was empty. The fix enforces correct queue draining by: (1) ...

PT-2026-51891

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the dualpi2 change function within the sch dualpi2 module. When a configuration change occurs for the dualpi2 qdisc queueing discipline, the function fails to correctl...