CVE-2026-89751

A flaw was found in the Linux kernel's x86/tdx component. An off-by-one error in the handlein and handleout functions, specifically in the GENMASK calculation for port I/O operations, causes the mask to be one bit too wide. This incorrect handling of I/O sizes could potentially lead to unintended...

CVE-2026-89751

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix off-by-one in port I/O handling handlein and handleout in arch/x86/coco/tdx/tdx.c use: u64 mask = GENMASKBITSPERBYTE size, 0; GENMASKh, l includes bit h. For size=1 INB, this produces GENMASK8, 0 = 0x1FF 9 bits inste...

CVE-2026-89751

CVE-2026-89751 is an off-by-one error in the Linux kernel's x86 TDX (Trusted Domain Extensions) port I/O handling. The functions handle_in() and handle_out() in arch/x86/coco/tdx/tdx.c compute a bitmask using GENMASK(BITS_PER_BYTE * size, 0). Since GENMASK(h, l) includes bit h , this produces a m...

EUVD-2026-76663

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix off-by-one in port I/O handling handlein and handleout in arch/x86/coco/tdx/tdx.c use: u64 mask = GENMASKBITSPERBYTE size, 0; GENMASKh, l includes bit h. For size=1 INB, this produces GENMASK8, 0 = 0x1FF 9 bits inste...

CVE-2026-89751 x86/tdx: Fix off-by-one in port I/O handling

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix off-by-one in port I/O handling handlein and handleout in arch/x86/coco/tdx/tdx.c use: u64 mask = GENMASKBITSPERBYTE size, 0; GENMASKh, l includes bit h. For size=1 INB, this produces GENMASK8, 0 = 0x1FF 9 bits inste...

PT-2026-90467

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix off-by-one in port I/O handling handle in and handle out in arch/x86/coco/tdx/tdx.c use: u64 mask = GENMASKBITS PER BYTE size, 0; GENMASKh, l includes bit h. For size=1 INB, this produces GENMASK8, 0 = 0x1FF 9 bits...

AZL-92766 CVE-2026-63940 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' or count '0', so that setting up the software scratch area and other code doesn't have to worry about underflowing the length, and...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002158)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002158 advisory. Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service guest OS crash via a crafted application th...

Linux Distros Unpatched Vulnerability : CVE-2022-50647

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RISC-V: Make port I/O string accessors actually work Fix port I/O string accessors such as insb', outsb', etc. which use the physical PCI port I/O address rathe...

CVE-2022-42455

ASUS EC Tool driver aka d.sys 1beb15c90dcf7a5234ed077833a0a3e900969b60be1d04fcebce0a9f8994bdbb, as signed by ASUS and shipped with multiple ASUS software products, contains multiple IOCTL handlers that provide raw read and write access to port I/O and MSRs via unprivileged IOCTL calls. Local user...

Design/Logic Flaw

ASUS EC Tool driver aka d.sys 1beb15c90dcf7a5234ed077833a0a3e900969b60be1d04fcebce0a9f8994bdbb, as signed by ASUS and shipped with multiple ASUS software products, contains multiple IOCTL handlers that provide raw read and write access to port I/O and MSRs via unprivileged IOCTL calls. Local user...

CVE-2022-42455

ASUS EC Tool driver aka d.sys 1beb15c90dcf7a5234ed077833a0a3e900969b60be1d04fcebce0a9f8994bdbb, as signed by ASUS and shipped with multiple ASUS software products, contains multiple IOCTL handlers that provide raw read and write access to port I/O and MSRs via unprivileged IOCTL calls. Local user...

GSD-2022-1007440 RISC-V: Make port I/O string accessors actually work

RISC-V: Make port I/O string accessors actually work This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.220 by commit...

GSD-2022-1007320 RISC-V: Make port I/O string accessors actually work

RISC-V: Make port I/O string accessors actually work This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.150 by commit...

GSD-2022-1007142 RISC-V: Make port I/O string accessors actually work

RISC-V: Make port I/O string accessors actually work This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.75 by commit...

GSD-2022-1006912 RISC-V: Make port I/O string accessors actually work

RISC-V: Make port I/O string accessors actually work This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.3 by commit...

CVE-2014-7842

Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service guest OS crash via a crafted application that performs an MMIO transaction or a PIO transaction to trigger a guest userspace emulation error report, a similar issue to...