ROS-20260916-73-0010

The vulnerability of the hfscenqueue function in the net/sched/schhfsc.c component of the Linux kernel is related to the use of memory after it has been freed. Exploiting this vulnerability could allow an attacker to access confidential data, compromise its integrity, and cause service failures...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098871)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098871 advisory. In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue When enqueuing the first packet t...

CVE-2025-38000

In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue When enqueuing the first packet to an HFSC class, hfscenqueue calls the child qdisc's peek operation before incrementing sch-q.qlen and sch-qstats.backlog. If the...

CVE-2025-38000

CVE-2025-38000 affects the Linux kernel HFSC scheduler qlen accounting: when enqueuing the first packet, hfsc_enqueue() previously used child qdisc peek() before updating sch->q.qlen and sch->qstats.backlog, which could trigger a dequeue and leave the HFSC class in an inconsistent state (po...

CVE-2025-38000: Use After Free

In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue When enqueuing the first packet to an HFSC class, hfscenqueue calls the child qdisc's peek operation before incrementing sch-q.qlen and sch-qstats.backlog. If the...