CVE-2026-31733 sched_ext: Fix stale direct dispatch state in ddsp_dsq_id

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix stale direct dispatch state in ddspdsqid @p-scx.ddspdsqid can be left set non-SCXDSQINVALID triggering a spurious warning in markdirectdispatch when the next wakeup's ops.selectcpu calls scxbpfdsqinsert, such as:...

CVE-2026-31733

CVE-2026-31733 concerns the Linux kernel’s sched_ext component, where the direct dispatch state (ddsp_dsq_id) could remain set across paths, causing a spurious warning in mark_direct_dispatch(). The root cause is that ddsp_dsq_id was only cleared in dispatch_enqueue(), and not consistently cleare...

ROS-20260414-73-0033

A vulnerability in the loadbalance function in the kernel/sched/fair.c module of the Linux kernel resource accounting system is associated with state management errors. Exploitation of the vulnerability may allow an intruder to affect confidentiality, integrity and availability of protected...

[SECURITY] Fedora 42 Update: rust-scx_rustland-0.0.3-7.fc42

A BPF component dispatcher that implements the low level sched-ext functionalities and a user-space counterpart scheduler, written in Rust, that implements the actual scheduling policy. This is used within schedext, which is a Linux kernel feature which enables implementing kernel thread schedule...

SUSE CVE-2025-68333

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix possible deadlock in the deferredirqworkfn For PREEMPTRT=y kernels, the deferredirqworkfn is executed in the per-cpu irqwork/ task context and not disable-irq, if the rq returned by containerof is current CPU's rq,...

Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices Improper Input Validation (CVE-2024-40995)

net/sched: actapi: possible infinite loop in tcfidrcheckalloc. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503394; scriptversion"1.3";...

kernel: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()

A flaw was found in the HFSC queueing discipline implementation in the Linux kernel. When a packet is enqueued and the child qdisc's peek function is called before properly updating the HFSC queue's length and backlog counters, a race condition can occur. In some cases, the peek operation may...

kernel: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()

A flaw was found in the HFSC queueing discipline implementation in the Linux kernel. When a packet is enqueued and the child qdisc's peek function is called before properly updating the HFSC queue's length and backlog counters, a race condition can occur. In some cases, the peek operation may...

kernel: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()

A flaw was found in the HFSC queueing discipline implementation in the Linux kernel. When a packet is enqueued and the child qdisc's peek function is called before properly updating the HFSC queue's length and backlog counters, a race condition can occur. In some cases, the peek operation may...

SUSE CVE-2025-38234

In the Linux kernel, the following vulnerability has been resolved: sched/rt: Fix race in pushrttask Overview ======== When a CPU chooses to call pushrttask and picks a task to push to another CPU's runqueue then it will call findlocklowestrq method which would take a double lock on both CPUs'...

UBUNTU-CVE-2022-49090

In the Linux kernel, the following vulnerability has been resolved: arch/arm64: Fix topology initialization for core scheduling Arm64 systems rely on storecputopology to call updatesiblingsmasks to transfer the toplogy to the various cpu masks. This needs to be done before the call to...

kernel: infinite loop in update_blocked_averages() in kernel/sched/fair.c leading to denial of service

The CFS Linux kernel scheduler mishandles handling of leaf cfsrq's in the kernel/sched/fair.c code, which allows a local unprivileged attacker to cause a denial of service DoS by entering an infinite loop in updateblockedaverages function by inducing a high load on a system. Due to the nature of...

Important: Red Hat Security Advisory: kernel security and bug fix update

Updated kernel packages that fix multiple security issues and two bugs are now available for Red Hat Enterprise Linux 6.4 Advanced Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give...

Important: Red Hat Security Advisory: kernel-rt security and bug fix update

Updated kernel-rt packages that fix two security issues and several bugs are now available for Red Hat Enterprise MRG 2.5. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings...