CVE-2026-99085 sched_ext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler A CPU going down has to empty its own rq. Its hotplug thread waits in schedcpuwaitempty until nothing else is left, and the only thing that wakes it...

CVE-2026-99085

The Linux kernel contains a vulnerability in sched_ext where a CPU hotplug hang can occur if a dying CPU's tasks are held by the BPF scheduler . The issue arises because tasks on a user DSQ are still counted on the runqueue (rq), but an inactive CPU stops calling ops.dispatch(), preventing tasks ...

EUVD-2026-108936

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler A CPU going down has to empty its own rq. Its hotplug thread waits in schedcpuwaitempty until nothing else is left, and the only thing that wakes it...

EUVD-2026-108731

In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: Handle cpu hotplug race in guaranteeactivecpus With commit 2125c0034c5d "cgroup/cpuset: Make cpuset hotplug processing synchronous", the cpuset hotplug operation becomes synchronous. That commit also removes the co...

CVE-2026-98896

The Linux kernel contains a vulnerability in the thunderbolt driver where hotplug events are processed in a workqueue. This can lead to a Use-After-Free (UAF) condition if the domain is removed via tb_domain_remove() (e.g., during a driver unload) while the tb_handle_hotplug() handler is still sc...

EUVD-2026-108690

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Keep the domain reference while processing hotplug We process hotplug events in a workqueue that may run after the domain has been removed by tbdomainremove. For example if user unloads the driver while at the same...

CVE-2026-89795

A flaw was found in the Linux kernel's s390 PCI Peripheral Component Interconnect hotplug driver. On s390 systems, an incorrect assignment of PCI slot objects to multifunction devices can lead to the wrong PCI function being reset when a reset operation is initiated through the hotplug driver. Th...

CVE-2026-93099

A flaw was found in the Linux kernel's fs/resctrl component. This use-after-free UAF vulnerability occurs when worker threads attempt to access memory that has already been released during CPU hotplug operations. A local attacker could potentially exploit this flaw to cause a system crash, leadin...

CVE-2026-92492

A flaw was found in the Linux kernel's cpufreq/amd-pstate component. A local attacker could potentially trigger a NULL pointer dereference by performing a racing CPU hotplug or driver teardown operation. This occurs because certain functions, amdpstatepowersupplynotifier and amdpstateprofileset, ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: PCI: pnvphp – Fixed issue with surprise plug detection and recovery. The existing PowerNV hotplug code did not handle surprise plug events correctly, resulting in a complete failure of the hotplug system after a device was...

Astra Linux – Vulnerability in Linux

In the file drivers/pci/hotplug/rpadlpar/sysfs.c within the Linux kernel up to version 5.11.8, the RPA PCI Hotplug driver suffers a user-tolerable buffer overflow when writing a new device name to the driver from user space. This allows user space to write data directly to the kernel stack frame...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: hwmon: coretemp Simplified platform device handling Coretemp’s platform driver is unconventional. All the actual processing is performed globally by the initcall and CPU hotplug notifiers. The “driver” essentially just wraps t...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: PCI: s390: Fixed a use-after-free of PCI resources when per-function hot-plugging occurs. On the s390 architecture, PCI functions may be hot-plugged individually, even when they belong to a multi-functional device. Specifically, ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/scs: The task stack state is reset in bringupcpu. When a CPU is hot-plugged, the idle task on that CPU calls several layers of C code before finally leaving the kernel. When KASAN is in use, a “poisoned” shadow is left behi...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

The brcm80211 component in the Linux kernel, from version 6.5.10 onwards, has a use-after-free issue in the code for disconnecting devices via hotplug i.e., removing the USB connection. For attackers who have physical access and local privileges, “this could be exploited in a real-world scenario....

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qla2xxx: Fixed a crash that occurred when I/O abort times out. During CPU hotplug, a crash was observed with the following stack: Call Trace: qla24xxprocessresponsequeue+0x42a/0x970 qla2xxx qla2x00startnvmemq+0x3a2/0x4b0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: padata: The CPU offline callback is moved to the ONLINE section to allow for failures. syzbot reported the following warning: DEAD callback error for CPU1 WARNING: kernel/cpu.c:1463 at cpudown+0x759/0x1020 kernel/cpu.c:1463, CPU0...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: PCI: pciehp: Fixed an infinite loop in the IRQ handler upon a power fault. The Power Fault Detected bit in the Slot Status register differs from all other hot-plug events in that it is sticky: It can only be cleared after...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: renesasusbhs: Flush the notifyhotplugwork When performing continuous unbind/bind operations on the USB drivers available on the Renesas RZ/G2L SoC, a kernel crash with the message “Unable to handle kernel NULL pointer...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: tracing/timerlat: Fixed a race condition during cpuhp processing. There is another exception found: the “timerlat/1” thread was scheduled on CPU0, leading to timer corruption: ODEBUG: init active active state 0 object:...