SUSE 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...

Linux Distros Unpatched Vulnerability : CVE-2026-89751

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 %NASLMINLEVEL 80900 C...

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...

AZL-100772 CVE-2026-89751 affecting package kernel for versions less than 6.6.157.1-1

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

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...

DEBIAN-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...

UBUNTU-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

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...

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

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...

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...

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 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

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An off-by-one error exists in the port I/O handling of the x86 TDX implementation. The functions handle in and handle out in arch/x86/coco/tdx/tdx.c use an incorrect mask calculation via...

CVE-2026-89751: Undefined Security Weakness

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-2026-96565

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 6.6.157.1-1

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...

CVE-2026-63940: Undefined Security Weakness

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...