CVE-2026-23449

Summary (CVE-2026-23449) : The Linux kernel vulnerability is in the TEQL scheduler path (net/sched/teql) where a lockless Qdisc root can cause a double-free in skb_release_data via an unsafe qdisc_reset path. The underlying issue occurs when teql_master_xmit fails to use seq_lock to guard qdisc_r...

CVE-2026-23449 net/sched: teql: Fix double-free in teql_master_xmit

In the Linux kernel, the following vulnerability has been resolved: net/sched: teql: Fix double-free in teqlmasterxmit Whenever a TEQL devices has a lockless Qdisc as root, qdiscreset should be called using the seqlock to avoid racing with the datapath. Failure to do so may cause crashes like the...

CVE-2026-23449 net/sched: teql: Fix double-free in teql_master_xmit

In the Linux kernel, the following vulnerability has been resolved: net/sched: teql: Fix double-free in teqlmasterxmit Whenever a TEQL devices has a lockless Qdisc as root, qdiscreset should be called using the seqlock to avoid racing with the datapath. Failure to do so may cause crashes like the...

PT-2026-30144

Name of the Vulnerable Software and Affected Versions Linux kernel versions 7.0.0-rc3 through 7.0.0-rc3 Description The Linux kernel contains a flaw in the TEQL Traffic Equation Queue Length scheduler. Specifically, a double-free issue exists in the teql master xmit function when a TEQL device ha...