kernel security, bug fix, and enhancement update

4.18.0-553.159.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Linux Distros Unpatched Vulnerability : CVE-2026-86315

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053262)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053262 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use scratch field in MMIO fragment to hold small write values When exiting to userspace...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053218)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053218 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle SRCU initialization failure during page track init Check the return of...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053406)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053406 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic, when a page is...

Linux Distros Unpatched Vulnerability : CVE-2026-80727

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/mce: Set up the polling timer before CMCI discovery I hit the following on one of my machines: mce: CPU0 BANK15 CMCI inherited storm ------------ cut here...

KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page

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The vulnerability of the efi_crash_gracefully_on_page_fault() function in the arch/x86/platform/efi/quirks.c module, which is part of the Linux operating system’s x86 kernel support, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the efecrashgracefullyonpagefault function in the arch/x86/platform/efi/quirks.c module of the Linux operating system’s kernel support for x86 platforms is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability allows an...

PT-2026-91794

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix swap entry corruption when clearing uffd-wp at fork copy hugetlb page range clears the uffd-wp bit of migration and hwpoison entries with huge pte clear uffd wp, which operates on the present-PTE bit position. Swa...

CVE-2026-80893: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix swap entry corruption when clearing uffd-wp at fork copyhugetlbpagerange clears the uffd-wp bit of migration and hwpoison entries with hugepteclearuffdwp, which operates on the present-PTE bit position. Swap entri...

CVE-2026-80117: Exposed IOCTL with Insufficient Access Control

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a privilege escalation vulnerability in DirectIo64.sys that allows local users to issue arbitrary IN and OUT instructions to any x86 I/O port due to missing allowlist...

The vulnerability of the relocate_kernel() function in Linux’s x86/kexec components allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the relocatekernel function in Linux’s x86/kexec components is related to buffer overflows in the stack. Exploiting this vulnerability allows an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

Linux Distros Unpatched Vulnerability : CVE-2026-80726

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its pare...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500249)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500249 advisory. - inet: frags: strip GSO state from fragments before reassembly Xinyang Ge Orabug: 39974835 CVE-2026-80590 - KVM: x86/mmu: Stop needlessly making...

SUSE CVE-2026-80727

In the Linux kernel, the following vulnerability has been resolved: x86/mce: Set up the polling timer before CMCI discovery I hit the following on one of my machines: mce: CPU0 BANK15 CMCI inherited storm ------------ cut here ------------ ODEBUG: assertinit not available active state 0 object:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invalid/obsolete root after making MMU pages available Check for a “stale” page fault, i.e., an invalid and/or obsolete root. This occurs after making MMU pages available for the shadow MMU. If reclaiming shad...

AZL-99062 CVE-2026-80726 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

CVE-2026-80726

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

UBUNTU-CVE-2026-80727

In the Linux kernel, the following vulnerability has been resolved: x86/mce: Set up the polling timer before CMCI discovery I hit the following on one of my machines: mce: CPU0 BANK15 CMCI inherited storm ------------ cut here ------------ ODEBUG: assertinit not available active state 0 object:...

UBUNTU-CVE-2026-80726

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...