CVE-2026-99258

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Avoid using per-cpu output page in hvapicidtovpindex hvapicidtovpindex currently uses the per-cpu hypercall input and output pages. This function is called when running in VTL2 and when running in an SEV-SNP CoCo VM...

UBUNTU-CVE-2026-99258

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Avoid using per-cpu output page in hvapicidtovpindex hvapicidtovpindex currently uses the per-cpu hypercall input and output pages. This function is called when running in VTL2 and when running in an SEV-SNP CoCo VM...

CVE-2026-99258 x86/hyperv: Avoid using per-cpu output page in hv_apicid_to_vp_index()

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Avoid using per-cpu output page in hvapicidtovpindex hvapicidtovpindex currently uses the per-cpu hypercall input and output pages. This function is called when running in VTL2 and when running in an SEV-SNP CoCo VM...

CVE-2026-99258

The Linux kernel contains a vulnerability in the x86/hyperv architecture specifically regarding the hv_apicid_to_vp_index() function. The issue arises because the function uses per-cpu hypercall input and output pages; however, in SEV-SNP CoCo VMs without a paravisor, the output page is not alloc...

EUVD-2026-115769

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Avoid using per-cpu output page in hvapicidtovpindex hvapicidtovpindex currently uses the per-cpu hypercall input and output pages. This function is called when running in VTL2 and when running in an SEV-SNP CoCo VM...

PT-2026-136094

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Avoid using per-cpu output page in hv apicid to vp index hv apicid to vp index currently uses the per-cpu hypercall input and output pages. This function is called when running in VTL2 and when running in an SEV-SNP...

Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-53261: coresight: Fix memory leak in acpibuffer-pointer bsc1249770. CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disable...

SUSE SLES15 Security Update : kernel (SUSE-SU-2025:3725-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3725-1 advisory. The SUSE Linux Enterprise 15 SP7 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: -...

Moderate: 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 Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

UBUNTU-CVE-2024-46864

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: fix kexec crash due to VP assist page corruption commit 9636be85cc5b "x86/hyperv: Fix hypervpcpuinputarg handling when CPUs go online/offline" introduces a new cpuhp state for hyperv initialization. cpuhpsetupstate...

CVE-2024-46864 x86/hyperv: fix kexec crash due to VP assist page corruption

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: fix kexec crash due to VP assist page corruption commit 9636be85cc5b "x86/hyperv: Fix hypervpcpuinputarg handling when CPUs go online/offline" introduces a new cpuhp state for hyperv initialization. cpuhpsetupstate...

CVE-2024-46864 x86/hyperv: fix kexec crash due to VP assist page corruption

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: fix kexec crash due to VP assist page corruption commit 9636be85cc5b "x86/hyperv: Fix hypervpcpuinputarg handling when CPUs go online/offline" introduces a new cpuhp state for hyperv initialization. cpuhpsetupstate...

CVE-2024-46864: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: fix kexec crash due to VP assist page corruption commit 9636be85cc5b "x86/hyperv: Fix hypervpcpuinputarg handling when CPUs go online/offline" introduces a new cpuhp state for hyperv initialization. cpuhpsetupstate...

CVE-2021-47217

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Fix NULL deref in sethvtscchangecb if Hyper-V setup fails Check for a valid hvvpindex array prior to derefencing hvvpindex when setting Hyper-V's TSC change callback. If Hyper-V setup failed in hypervinit, the kernel...

CVE-2021-47217 x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup fails

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Fix NULL deref in sethvtscchangecb if Hyper-V setup fails Check for a valid hvvpindex array prior to derefencing hvvpindex when setting Hyper-V's TSC change callback. If Hyper-V setup failed in hypervinit, the kernel...

CVE-2021-47217 x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup fails

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Fix NULL deref in sethvtscchangecb if Hyper-V setup fails Check for a valid hvvpindex array prior to derefencing hvvpindex when setting Hyper-V's TSC change callback. If Hyper-V setup failed in hypervinit, the kernel...

CVE-2021-47217

The CVE-2021-47217 issue is in the Linux kernel's x86/hyperv code: a NULL dereference in set_hv_tscchange_cb() if Hyper-V setup fails. The vulnerability occurs when hv_vp_index is dereferenced without validating its array, causing a kernel NULL pointer dereference and potentially disabling Hyper-...

CVE-2021-47217: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Fix NULL deref in sethvtscchangecb if Hyper-V setup fails Check for a valid hvvpindex array prior to derefencing hvvpindex when setting Hyper-V's TSC change callback. If Hyper-V setup failed in hypervinit, the kernel...