Security update for the Linux Kernel RT (Live Patch 4 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506001014 fixes several issues. The following security issues were fixed: CVE-2024-53042: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow bsc1233678. CVE-2024-53156: wifi: ath9k: add range check for connrspepid in htcconnectservice...

DEBIAN-CVE-2025-37885

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reset IRTE to host control if new route isn't postable Restore an IRTE back to host control remapped or posted MSI mode if the new GSI route prevents posting the IRQ directly to a vCPU, regardless of the GSI routing typ...

SUSE CVE-2025-23141

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire SRCU in KVMGETMPSTATE to protect guest memory accesses Acquire a lock on kvm-srcu when userspace is getting MP state to handle a rather extreme edge case where "accepting" APIC events, i.e. processing pending IN...

DEBIAN-CVE-2022-49883

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format On 64 bit host, if the guest doesn't have X86FEATURELM, KVM will access 16 gprs to 32-bit smram image, causing out-ouf-bound ram access. On 32 bit host,...

DEBIAN-CVE-2022-49884

In the Linux kernel, the following vulnerability has been resolved: KVM: Initialize gfntopfncache locks in dedicated helper Move the gfntopfncache lock initialization to another helper and call the new helper during VM/vCPU creation. There are race conditions possible due to kvmgfntopfncacheinit'...

DEBIAN-CVE-2022-49774

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix eventfd error handling in kvmxeneventfdassign Should not call eventfdctxput in case of error. Introduce new goto target instead. - Paolo...

OESA-2025-1432 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle SRCU initialization failure during page track init Check the return of initsrcustruct, which can fail due to OOM, when initializing the page tra...

SUSE CVE-2025-23135

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Teardown riscv specific bits after kvmexit During a module removal, kvmexit invokes arch specific disable call which disables AIA. However, we invoke aiaexit before kvmexit resulting in the following warning. KVM...

DEBIAN-CVE-2025-23135

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Teardown riscv specific bits after kvmexit During a module removal, kvmexit invokes arch specific disable call which disables AIA. However, we invoke aiaexit before kvmexit resulting in the following warning. KVM...

PT-2025-22218

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to the fixed version Description A vulnerability in the Linux kernel has been resolved, related to KVM Kernel-based Virtual Machine and SVM Secure Virtual Machine. The issue occurs when a triple fault happens in...

KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel

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The vulnerability of the module parameter function module arch/x86/kvm/vmx/vmx.c in the virtualization subsystem of the Linux operating system’s x86 kernel allows a attacker to cause a service failure.

The vulnerability of the module parameter function module arch/x86/kvm/vmx/vmx.c in the virtualization subsystem of the Linux operating system’s x86 kernel is related to code errors. Exploiting this vulnerability could allow an attacker to cause a service failure...

SUSE CVE-2025-21839

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Load DR6 with guest value only before entering .vcpurun loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpurun loop to fix a bug where KVM can load hardware with a stale...

DEBIAN-CVE-2025-21839

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Load DR6 with guest value only before entering .vcpurun loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpurun loop to fix a bug where KVM can load hardware with a stale...

SUSE CVE-2022-49559

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

SUSE CVE-2022-49568

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't null dereference ops-destroy A KVM device cleanup happens in either of two callbacks: 1 destroy which is called when the VM is being destroyed; 2 release which is called when a device fd is closed. Most KVM devices use...

UBUNTU-CVE-2022-49559

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

DEBIAN-CVE-2022-49154

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: fix panic on out-of-bounds guest IRQ As guestirq is coming from KVMIRQFD API call, it may trigger crash in svmupdatepiirte due to out-of-bounds: crash bt PID: 22218 TASK: ffff951a6ad74980 CPU: 73 COMMAND: "vcpu8" 0...

UBUNTU-CVE-2022-49154

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: fix panic on out-of-bounds guest IRQ As guestirq is coming from KVMIRQFD API call, it may trigger crash in svmupdatepiirte due to out-of-bounds: crash bt PID: 22218 TASK: ffff951a6ad74980 CPU: 73 COMMAND: "vcpu8" 0...

DEBIAN-CVE-2021-47639

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Zap all roots when unmapping gfn range in TDP MMU Zap both valid and invalid roots when zapping/unmapping a gfn range, as KVM must ensure it holds no references to the freed page after returning from the unmap...