Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it’s shadow-present. Although commit a54aa15c6bda3 correctly...

Rocky Linux security update in Brocade ASCG 3.4.0c (CVE-2025-68724, CVE-2026-23401, CVE-2026-31402, CVE-2025-40252)

CVE-2025-68724- Title: crypto: asymmetrickeys - prevent overflow in asymmetrickeygenerateid Description In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetrickeys - prevent overflow in asymmetrickeygenerateid Use checkaddoverflow to guard against potential integer...

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...

Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1646)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1646 advisory. In the Linux kernel, the following vulnerability has been resolved: landlock: Fix handling of disconnected directories CVE-2025-68736 In the Linux kernel, the following vulnerability has been...

Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50232)

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50232 advisory. - ipv6: use RCU in ip6xmit Eric Dumazet Orabug: 39202432 CVE-2025-40135 - dst: fix races in rt6uncachedlistdel and rtdeluncachedlist Eric Dumazet...

CVE-2026-23402

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

AZL-81354 CVE-2026-23401 affecting package kernel for versions less than 6.6.134.1-2

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23401

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23402

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23402

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23402 KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23401

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23401: Use After Free

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

Unbreakable Enterprise kernel bug fix update

6.12.0-200.74.27.1 - KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE Sean Christopherson Orabug: 39071315...

AZL-70468 CVE-2022-50224 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT Treat the NX bit as valid when using NPT, as KVM will set the NX bit when the NX huge page mitigation is enabled mindblowing and trigger the WARN that fires on reserved SPTE bits...

UBUNTU-CVE-2022-50224

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT Treat the NX bit as valid when using NPT, as KVM will set the NX bit when the NX huge page mitigation is enabled mindblowing and trigger the WARN that fires on reserved SPTE bits...

CVE-2022-50224 KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT Treat the NX bit as valid when using NPT, as KVM will set the NX bit when the NX huge page mitigation is enabled mindblowing and trigger the WARN that fires on reserved SPTE bits...

CVE-2022-50224

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT Treat the NX bit as valid when using NPT, as KVM will set the NX bit when the NX huge page mitigation is enabled mindblowing and trigger the WARN that fires on reserved SPTE bits...

CVE-2022-50224 KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT Treat the NX bit as valid when using NPT, as KVM will set the NX bit when the NX huge page mitigation is enabled mindblowing and trigger the WARN that fires on reserved SPTE bits...