CVE-2026-64374

In the Linux kernel, the following vulnerability has been resolved: sched/rt: Have RTPUSHIPI be default off for non PREEMPTRT RT migration is done aggressively. When a CPU schedules out a high priority RT task for a lower priority task, it will look to see if there's any RT tasks that are waiting...

Linux Distros Unpatched Vulnerability : CVE-2026-64374

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sched/rt: Have RTPUSHIPI be default off for non PREEMPTRT RT migration is done aggressively. When a CPU schedules out a high priority RT task for a lower priori...

CVE-2026-64073

Summary of CVE-2026-64073 (Linux kernel): A use-after-free in irq_work_single() on PREEMPT_RT was fixed. On PREEMPT_RT, non-HARD irq_work runs in per-CPU kthreads via run_irq_workd(), and irq_work_sync() uses rcuwait() to wait for BUSY==0. After irq_work_single() clears BUSY with atomic_cmpxchg()...

CVE-2026-64073 irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: irqwork: Fix use-after-free in irqworksingle on PREEMPTRT On PREEMPTRT, non-HARD irqwork runs in per-CPU kthreads via runirqworkd, so irqworksync uses rcuwait to wait for BUSY==0. After irqworksingle clears BUSY via atomiccmpxchg...

EUVD-2026-45646

In the Linux kernel, the following vulnerability has been resolved: irqwork: Fix use-after-free in irqworksingle on PREEMPTRT On PREEMPTRT, non-HARD irqwork runs in per-CPU kthreads via runirqworkd, so irqworksync uses rcuwait to wait for BUSY==0. After irqworksingle clears BUSY via atomiccmpxchg...

CVE-2026-64073 irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: irqwork: Fix use-after-free in irqworksingle on PREEMPTRT On PREEMPTRT, non-HARD irqwork runs in per-CPU kthreads via runirqworkd, so irqworksync uses rcuwait to wait for BUSY==0. After irqworksingle clears BUSY via atomiccmpxchg...

CVE-2026-53326

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Don't call fillpool in early boot hardirq context When booting a debug PREEMPTRT kernel on an ARM64 system, a "inconsistent HARDIRQ-ON-W - IN-HARDIRQ-W usage" lockdep warning message was reported to the console...

EUVD-2026-40960

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Don't call fillpool in early boot hardirq context When booting a debug PREEMPTRT kernel on an ARM64 system, a "inconsistent HARDIRQ-ON-W - IN-HARDIRQ-W usage" lockdep warning message was reported to the console...

SUSE CVE-2026-53260

In the Linux kernel, the following vulnerability has been resolved: tcp: Add preemptdisable,enablenested in reqskqueuehashreq. syzbot reported a weird reqsk-rskrefcnt underflow in inetcskreqskqueuedrop. The captured reqskput in inetcskreqskqueuedrop is called only when it successfully removes req...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: schedext: A potential deadlock has been fixed in deferredirqworkfn. For PREEMPTRT=y kernels, deferredirqworkfn is executed in the per-cpu irqwork/ task context, and not in disable-irq. If the rq returned by containerof is the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: smc91x: fixed a broken irq-context in PREEMPTRT When smc91x.c is built with PREEMPTRT, the following error occurs in FVPRevC: 13.055000 smc91x LNRO0003:00 eth0: link up, 10Mbps, half-duplex, lpa 0x0000 13.062137 BUG: The workqueu...

UBUNTU-CVE-2026-46031

In the Linux kernel, the following vulnerability has been resolved: net: ks8851: Reinstate disabling of BHs around IRQ handler If the driver executes ks8851irq AND a TX packet has been sent, then the driver enables TX queue via netifwakequeue which schedules TX softirq to queue packets for this...

Linux Distros Unpatched Vulnerability : CVE-2026-46031

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: ks8851: Reinstate disabling of BHs around IRQ handler If the driver executes ks8851irq AND a TX packet has been sent, then the driver enables TX queue via...

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

In the Linux kernel, the following vulnerability has been resolved: kcsan: Turning reportfilterlistlock into a rawspinlock Ran Xiaokai reported that with a KCSAN-enabled PREEMPTRT kernel, we can observe such issues as follows: | BUG: Sleeping function called from invalid context at...

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

In the Linux kernel, the following vulnerabilities have been resolved: rcu: Dump vmalloc memory info safely Currently, for double invoke callrcu, the memory information of rcuhead objects will be dumped. If these objects are not allocated using the slab allocator, vmallocdumpobj will be invoked,...

SUSE CVE-2026-43311

In the Linux kernel, the following vulnerability has been resolved: soc/tegra: pmc: Fix unsafe generichandleirq call Currently, when resuming from system suspend on Tegra platforms, the following warning is observed: WARNING: CPU: 0 PID: 14459 at kernel/irq/irqdesc.c:666 Call trace:...

UBUNTU-CVE-2026-43475

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

CVE-2026-43311

In the Linux kernel, the following vulnerability has been resolved: soc/tegra: pmc: Fix unsafe generichandleirq call Currently, when resuming from system suspend on Tegra platforms, the following warning is observed: WARNING: CPU: 0 PID: 14459 at kernel/irq/irqdesc.c:666 Call trace:...

CVE-2026-43311

In the Linux kernel, the following vulnerability has been resolved: soc/tegra: pmc: Fix unsafe generichandleirq call Currently, when resuming from system suspend on Tegra platforms, the following warning is observed: WARNING: CPU: 0 PID: 14459 at kernel/irq/irqdesc.c:666 Call trace:...

PT-2026-38953

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Tegra platform's Power Management Controller PMC during the system suspend resume process. The generic handle irq function is called from a non-interrupt context,...