GSD-2022-1003457 KVM: x86: avoid calling x86 emulator without a decoded instruction

KVM: x86: avoid calling x86 emulator without a decoded instruction 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 v5.15.45 by commit...

GSD-2022-1003455 KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 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 v5.15.45 by commit...

GSD-2022-1003452 KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak

KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak 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 v5.15.45 by commit...

GSD-2022-1003186 KVM: x86: Use __try_cmpxchg_user() to update guest PTE A/D bits

KVM: x86: Use trycmpxchguser to update guest PTE A/D bits 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 v5.17.13 by commit...

GSD-2022-1003185 KVM: x86: fix typo in __try_cmpxchg_user causing non-atomicness

KVM: x86: fix typo in trycmpxchguser causing non-atomicness 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 v5.17.13 by commit...

GSD-2022-1003183 x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave)

x86/fpu: KVM: Set the base guest FPU uABI size to sizeofstruct kvmxsave 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 v5.17.13 by commit...

GSD-2022-1003182 KVM: x86: avoid calling x86 emulator without a decoded instruction

KVM: x86: avoid calling x86 emulator without a decoded instruction 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 v5.17.13 by commit...

GSD-2022-1003179 KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak

KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak 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 v5.17.13 by commit...

GSD-2022-1003175 KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 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 v5.17.13 by commit...

GSD-2022-1002878 KVM: x86: Use __try_cmpxchg_user() to update guest PTE A/D bits

KVM: x86: Use trycmpxchguser to update guest PTE A/D bits 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 v5.18.2 by commit...

GSD-2022-1002875 KVM: x86: avoid calling x86 emulator without a decoded instruction

KVM: x86: avoid calling x86 emulator without a decoded instruction 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 v5.18.2 by commit...

GSD-2022-1002873 KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 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 v5.18.2 by commit...

GSD-2022-1002871 x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave)

x86/fpu: KVM: Set the base guest FPU uABI size to sizeofstruct kvmxsave 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 v5.18.2 by commit...

GSD-2022-1002870 KVM: x86: fix typo in __try_cmpxchg_user causing non-atomicness

KVM: x86: fix typo in trycmpxchguser causing non-atomicness 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 v5.18.2 by commit...

GSD-2022-1002869 KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak

KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak 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 v5.18.2 by commit...

[SECURITY] Fedora 36 Update: qemu-6.2.0-12.fc36

qemu is an open source virtualizer that provides hardware emulation for the KVM hypervisor. qemu acts as a virtual machine monitor together with the KVM kernel modules, and emulates the hardware for a full system such as a PC and its associated peripherals...

CVE-2022-2153

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a...

USN-5485-1: Linux kernel vulnerabilities

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. CVE-2022-21123 It was discovered that some Intel processors did not completely perform cleanup actions on...

CVE-2022-1158

A flaw was found in KVM. When updating a guest's page table entry, vmpgoff was improperly used as the offset to get the page's pfn. As vaddr and vmpgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and...

Unbreakable Enterprise kernel security update

5.4.17-2136.308.9 - x86/speculation/mmio: Fix late microcode loading Patrick Colp Orabug: 34276099 5.4.17-2136.308.8 - Add debugfs for controlling MMIO state data Kanth Ghatraju Orabug: 34202259 CVE-2022-21123 CVE-2022-21127 CVE-2022-21125 CVE-2022-21166 - KVM: x86/speculation: Disable Fill buffe...