KVM: x86: check for nEPT/nNPT in slow flush hypercalls

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SUSE CVE-2026-46076

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nestedsvml2tlbflushenabled is true, and the hypercall is something...

UBUNTU-CVE-2026-46076

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nestedsvml2tlbflushenabled is true, and the hypercall is something...

CVE-2026-46076 KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nestedsvml2tlbflushenabled is true, and the hypercall is something...

Astra Linux - уязвимость в linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: x86/hyperv: Disabling IBT when the hypercall page lacks the ENDBR instruction. On hardware that supports Indirect Branch Tracking IBT, Hyper-V VMs with ConfigVersion 9.3 or later support IBT in the guest. However, current version...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: x86/vmware: Fixed hypercall clobbering issues. Fedora QA reported the following panic: BUG: Unable to handle a page fault for address: 0000000040003e54 PF: Supervisor write access in kernel mode PF: Errorcode0x0002 – Not-prese...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013143)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013143 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/sev: Make encdechypercall accept a size instead of npages encdechypercall accepted a page cou...

SUSE-SU-2026:21361-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-39998: scsi: target: targetcoreconfigfs: Add length check to avoid buffer overflow bsc1252073. - CVE-2025-40253: s390/ctcm: Fix double-kfree bsc1255084. -...

SUSE CVE-2026-23215

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-0665 Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption...

CVE-2026-0665 Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption...

CVE-2026-23215

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

UBUNTU-CVE-2026-23215

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-23215

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-23215

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-23215

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-23215 x86/vmware: Fix hypercall clobbers

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-23215

CVE-2026-23215 affects the Linux kernel’s x86/vmware code. The issue arises from buggy QEMU VMware mouse emulation that clobbers the top 32 bits of the RDI/RSI state across hypercalls, causing page faults when dereferencing a saved kernel stack address. The kernel workaround marks RDI/RSI as clob...

CVE-2026-23215 x86/vmware: Fix hypercall clobbers

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

Linux Distros Unpatched Vulnerability : CVE-2026-23215

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write...