CLSA-2026-1779375889 kernel: Fix of 95 CVEs

perf/x86/intel/uncore: Fix die ID init and look up bugs CVE-2026-43344 - x86/apic: Disable x2apic on resume if the kernel expects so CVE-2026-43363 - drm/amdgpu: Fix use-after-free race in VM acquire CVE-2026-43370 - dm: remove fake timeout to avoid leak request CVE-2026-43314 - md/bitmap: fix...

RXSA-2026:13577 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont and qedetpaend CVE-2025-40252 kernel: crypto: asymmetricke...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

RHSA-2026:18772 Red Hat Security Advisory: qemu-kvm security update

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RHSA-2026:18479 Red Hat Security Advisory: qemu-kvm security update

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Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: A stack overflow issue was fixed when loading vlenb. The user-space load mechanism can place up to 2048 bits into the xlen bit stack buffer. Since we only need the xlen bits, we check the size of the buffer in advanc...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: Fixed stack handling in idlekvmstartguest In commit 10d91611f426 “powerpc/64s: Reimplemented the book3s idle code in C”, kvmstartguest became idlekvmstartguest. The old code allocated a stack frame on the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Avoid consuming a stale esr value when an SError occurs When any exception other than an IRQ occurs, the CPU updates the ESREL2 register with the exception syndrome. An SError may also become pending, and will be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check the validity of “numcpu” from user space. The maximum supported CPU number is EIOINTCROUTEMAXVCPUS. For the irchip EIOINTC, validation of the CPU number is added to prevent array pointer overflow...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: KVM: Set the base guest FPU uABI size to sizeofstruct kvmxsave. The starting uABI size of KVM’s guest FPU was set to ‘struct kvmxsave’, which corresponds to KVM’s historical uABI size. When saving the FPU state for a use...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Loads the TSC multiplier of L1 based on L1’s state, not L2’s state. When emulating a nested VM-Exit, the TSC multiplier of L1 is loaded if L1’s desired ratio does not match the current ratio. This does not occur if L1’...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fixed error handling for eventfd in kvmxeneventfdassign Do not call eventfdctxput in case of an error. Introduced a new goto target instead. - Paolo...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: KVM: PPC: Fixed the issue with the vcpuload leak in kvmarchvcpuioctl. The vcpuput function is not called if the user copy fails. This can lead to problems such as corruption of the preempt notifier and system crashes...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: - fs: exported anoninodemakesecureinode and fixed the issue with secretmem LSM bypass. - The anoninodemakesecureinode function was exported to allow KVM guestmemfd to create anonymous inodes with proper security context. This...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: mmmremap.c: Avoid unnecessary calls to invalidrangestart/invalidaterangeend when using mremap with oldsize=0. If the mremap system call with oldsize=0 ends up in movepagetables, it will unnecessarily call...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Warns when a triple fault assertion never “escapes” from L2 The warnings are removed because they perform a sanity check that ensures KVM never allows a triple fault in L2 to escape and end up in L1. In normal operation...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fixed the calculation of the base address in the function kvmeiointc regsaccess. In the function kvmeiointc regsaccess, the base address of the register is calculated by adding an offset to the array base address...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Marking hrtimers to expire in hard interrupt context Similar to commits 2c0d278f3293f “KVM: LAPIC: Marking hrtimers to expire in hard interrupt context” and 9090825fa9974 “KVM: arm/arm64: Letting timers expire in...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Syst...