Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000253)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000253 advisory. In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem...

SUSE CVE-2025-68193

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Add devm release action to safely tear down CT When a buffer object BO is allocated with the XEBOFLAGGGTTINVALIDATE flag, the driver initiates TLB invalidation requests via the CTB mechanism while releasing the BO...

CVE-2025-68179

In the Linux kernel, the following vulnerability has been resolved: s390: Disable ARCHWANTOPTIMIZEHUGETLBVMEMMAP As reported by Luiz Capitulino enabling HVO on s390 leads to reproducible crashes. The problem is that kernel page tables are modified without flushing corresponding TLB entries. Even ...

UBUNTU-CVE-2025-68179

In the Linux kernel, the following vulnerability has been resolved: s390: Disable ARCHWANTOPTIMIZEHUGETLBVMEMMAP As reported by Luiz Capitulino enabling HVO on s390 leads to reproducible crashes. The problem is that kernel page tables are modified without flushing corresponding TLB entries. Even ...

CVE-2025-68193

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Add devm release action to safely tear down CT When a buffer object BO is allocated with the XEBOFLAGGGTTINVALIDATE flag, the driver initiates TLB invalidation requests via the CTB mechanism while releasing the BO...

UBUNTU-CVE-2025-68193

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Add devm release action to safely tear down CT When a buffer object BO is allocated with the XEBOFLAGGGTTINVALIDATE flag, the driver initiates TLB invalidation requests via the CTB mechanism while releasing the BO...

CVE-2025-68193 drm/xe/guc: Add devm release action to safely tear down CT

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Add devm release action to safely tear down CT When a buffer object BO is allocated with the XEBOFLAGGGTTINVALIDATE flag, the driver initiates TLB invalidation requests via the CTB mechanism while releasing the BO...

CVE-2025-68179 s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP

In the Linux kernel, the following vulnerability has been resolved: s390: Disable ARCHWANTOPTIMIZEHUGETLBVMEMMAP As reported by Luiz Capitulino enabling HVO on s390 leads to reproducible crashes. The problem is that kernel page tables are modified without flushing corresponding TLB entries. Even ...

CVE-2025-68179 s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP

In the Linux kernel, the following vulnerability has been resolved: s390: Disable ARCHWANTOPTIMIZEHUGETLBVMEMMAP As reported by Luiz Capitulino enabling HVO on s390 leads to reproducible crashes. The problem is that kernel page tables are modified without flushing corresponding TLB entries. Even ...

DEBIAN-CVE-2025-29934

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially resulting in loss of data integrity...

PT-2025-47792

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially resulting in loss of data integrity...

kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugepmdunshare vs GUP-fast race hugepmdunshare drops a reference on a page table that may have previously been shared across processes, potentially turning it into a normal page table used in another process in...

kernel: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush In KVM guests with Hyper-V hypercalls enabled, the hypercalls HVCALLFLUSHVIRTUALADDRESSLIST and HVCALLFLUSHVIRTUALADDRESSLISTEX allow a guest to request...

HPESBHF04963 rev.2 - Certain HPE SimpliVity servers Using Certain AMD EPYC Processors. AMD-SB-3029: Stale Translation Lookaside Buffer (TLB) Entry Vulnerability, Local Unauthorized Access Vulnerability

Potential Security Impact: Local: Unauthorized Access SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE SimpliVity 325 Gen10 Plus - Prior to HPE SimpliVity Gen10 Support Pack SVTSP 20250630 HPE SimpliVity 325 Gen11 - Prior to HPE SimpliVity Gen11 Support Pack SVTSP 20260116 CVSS...

UBUNTU-CVE-2025-40174

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix SMP ordering in switchmmirqsoff Stephen noted that it is possible to not have an smpmb between the loadedmm store and the tlbgen load in switchmm, meaning the ordering against flushtlbmmrange goes out the window, and ...

CVE-2025-40174 x86/mm: Fix SMP ordering in switch_mm_irqs_off()

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix SMP ordering in switchmmirqsoff Stephen noted that it is possible to not have an smpmb between the loadedmm store and the tlbgen load in switchmm, meaning the ordering against flushtlbmmrange goes out the window, and ...

Linux Distros Unpatched Vulnerability : CVE-2025-40174

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/mm: Fix SMP ordering in switchmmirqsoff Stephen noted that it is possible to not have an smpmb between the loadedmm store and the tlbgen load in switchmm,...

Stale Translation Lookaside Buffer (TLB) Entry Vulnerability

Summary An internally reported microcode bug in some EPYC™ AMD CPUs could allow a local admin-privileged attacker to run SEV-SNP Secure Encrypted Virtualization - Secure Nested Paging guests using stale TLB entries. This bug could allow SNP active vCPUs to reuse TLB entries from other virtual...

HPESBHF04962 rev.1 - Certain HPE ProLiant DL/XL servers Using Certain AMD EPYC Processors. AMD-SB-3029: Stale Translation Lookaside Buffer (TLB) Entry Vulnerability, Local Unauthorized Access Vulnerability

Potential Security Impact: Local: Unauthorized Access SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE ProLiant Compute DL325 Gen12 - Prior to 1.1005-27-2025 HPE ProLiant Compute DL345 Gen12 - Prior to 1.1005-27-2025 HPE ProLiant DL145 Gen11 - Prior to 1.7008-07-2025 HPE ProLia...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990598)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990598 advisory. In the Linux kernel, the following vulnerability has been resolved: parisc: Fix data TLB miss in sbaunmapsg Rolf Eike Beer reported the following bug: 1274934.746891...