Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Input: gpio-keys – fix a sleep while atomic with PREEMPTRT. When PREEMPTRT is enabled, the gpiokeysirqtimer callback runs in the hardirq context. However, the inputevent function takes a spinlock, which is not allowed in that...

CVE-2026-64429

CVE-2026-64429 affects the Spreadtrum EIC GPIO IRQ controller driver in the Linux kernel. The root cause is that sprd_eic_irq_unmask() calls sprd_eic_update(), which acquires a lock via spin_lock_irqsave(). On PREEMPT_RT kernels, a regular spinlock_t becomes a sleeping lock, but the code path is ...

CVE-2026-64073

A flaw was found in the Linux kernel, specifically within the irqwork subsystem when running on systems configured with PREEMPTRT. This vulnerability is a use-after-free, where the system attempts to access memory after it has been released. A local attacker could exploit this timing issue to cau...

SUSE 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...

CVE-2026-43475 scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT

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...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from scheduling atomic issues in the storvsc driver when PREEMPTRT is enabled. This issue may lead to...

SUSE CVE-2026-23294

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

CVE-2026-23342 bpf: Fix race in cpumap on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in cpumap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and cpumapflush run atomically...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix sleeping in atomic context for PREEMPTRT Commit bab1c299f3945ffe79 "LoongArch: Fix sleeping in atomic context in setuptlbhandler" changes the gfp flag from GFPKERNEL to GFPATOMIC for allocpagesnode. However, for...

UBUNTU-CVE-2025-39900

In the Linux kernel, the following vulnerability has been resolved: netsched: genestimator: fix esttimer vs CONFIGPREEMPTRT=y syzbot reported a WARNING in esttimer 1 Problem here is that with CONFIGPREEMPTRT=y, timer callbacks can be preempted. Adopt preemptdisablenested/preemptenablenested to fi...

SUSE CVE-2025-21825

In the Linux kernel, the following vulnerability has been resolved: bpf: Cancel the running bpftimer through kworker for PREEMPTRT During the update procedure, when overwrite element in a pre-allocated htab, the freeing of oldelement is protected by the bucket lock. The reason why the bucket lock...

AZL-62534 CVE-2025-21825 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Cancel the running bpftimer through kworker for PREEMPTRT During the update procedure, when overwrite element in a pre-allocated htab, the freeing of oldelement is protected by the bucket lock. The reason why the bucket lock...

UBUNTU-CVE-2025-21767

In the Linux kernel, the following vulnerability has been resolved: clocksource: Use migratedisable to avoid calling getrandomu32 in atomic context The following bug report happened with a PREEMPTRT kernel: BUG: sleeping function called from invalid context at kernel/locking/spinlockrt.c:48...