CVE-2026-64248 MIPS: smp: report dying CPU to RCU in stop_this_cpu()

In the Linux kernel, the following vulnerability has been resolved: MIPS: smp: report dying CPU to RCU in stopthiscpu smpsendstop parks all secondary CPUs in stopthiscpu. The function marks the CPU offline for the scheduler via setcpuonlinefalse but never informs RCU, so RCU keeps expecting a...

EUVD-2026-39849

In the Linux kernel, the following vulnerability has been resolved: padata: Put CPU offline callback in ONLINE section to allow failure syzbot reported the following warning: DEAD callback error for CPU1 WARNING: kernel/cpu.c:1463 at cpudown+0x759/0x1020 kernel/cpu.c:1463, CPU0: syz.0.1960/14614 ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: Do not decrement the preempt count of the idle task when the CPU is offline. With PREEMPTCOUNT=y, when a CPU is offline and then brought back online, we encounter the following issue: BUG: Scheduling while atomic:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Stop the dlserver function before the CPU goes offline. The IBM CI tool reported a kernel warning1 when performing a CPU removal operation using drmgr2. For example: “drmgr -c cpu -r -q 1”. WARNING: CPU: 0 PID: 0 ...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021546)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021546 advisory. In the Linux kernel, the following vulnerability has been resolved: thermal: intelpowerclamp: Use getcpu instead of smpprocessorid to avoid crash When CPU 0 is offli...

CVE-2025-40163

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Stop dlserver before CPU goes offline IBM CI tool reported kernel warning1 when running a CPU removal operation through drmgr2. i.e "drmgr -c cpu -r -q 1" WARNING: CPU: 0 PID: 0 at kernel/sched/cpudeadline.c:219...

Linux Distros Unpatched Vulnerability : CVE-2025-40163

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Stop dlserver before CPU goes offline IBM CI tool reported kernel warning1...

UBUNTU-CVE-2025-40163

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Stop dlserver before CPU goes offline IBM CI tool reported kernel warning1 when running a CPU removal operation through drmgr2. i.e "drmgr -c cpu -r -q 1" WARNING: CPU: 0 PID: 0 at kernel/sched/cpudeadline.c:219...

CVE-2025-40163

In CVE-2025-40163, concrete details show a Linux kernel fix for sched/deadline: the dl_server must be stopped before a CPU goes offline to avoid a spurious hrtimer warning when a CPU is removed (drmgr -c cpu -r -q 1). The root cause was dl_server hrtimer enqueued near CPU offline, with cpu_presen...

EUVD-2022-55660

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fhid: fix fhidg lifetime vs cdev The embedded struct cdev does not have its lifetime correctly tied to the enclosing struct fhidg, so there is a use-after-free if /dev/hidgN is held open while the gadget is deleted...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987617)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987617 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: do not decrement idle task preempt count in CPU offline With PREEMPTCOUNT=y, when a...

Linux Distros Unpatched Vulnerability : CVE-2022-50494

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thermal: intelpowerclamp: Use getcpu instead of smpprocessorid to avoid crash When CPU 0 is offline and intelpowerclamp is used to inject idle, it generates...

AZL-66893 CVE-2025-38704 affecting package kernel 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix possible invalid rdp's-nocbcbkthread pointer access In the preparation stage of CPU online, if the corresponding the rdp's-nocbcbkthread does not exist, will be created, there is a situation where the rdp's rcuop...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from a reduction in the idle task preemption count when the CPU is offline...