CVE-2022-49556

The CVE-2022-49556 issue affects the Linux kernel KVM: SVM sev ioctl interfaces. It could cause leakage of uninitialized kernel memory when the length parameter is between SEV_FW_BLOB_MAX_SIZE and the returned data, due to using kmalloc. The fix uses kzalloc for sev ioctl interfaces to allocate c...

CVE-2022-49556 KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak For some sev ioctl interfaces, the length parameter that is passed maybe less than or equal to SEVFWBLOBMAXSIZE, but larger than the data that PSP firmwar...

CVE-2022-49154 KVM: SVM: fix panic on out-of-bounds guest IRQ

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: fix panic on out-of-bounds guest IRQ As guestirq is coming from KVMIRQFD API call, it may trigger crash in svmupdatepiirte due to out-of-bounds: crash bt PID: 22218 TASK: ffff951a6ad74980 CPU: 73 COMMAND: "vcpu8" 0...

CVE-2022-49154

CVE-2022-49154 relates to the Linux kernel KVM SVM path, where a guest IRQ fed via KVM_IRQFD can trigger an out-of-bounds access in svm_update_pi_irte(), potentially causing a crash. The issue is rooted in handling of guest IRQ routing and was addressed by VMX/VMX-side fixes and a kernel patch re...

CVE-2022-49133 drm/amdkfd: svm range restore work deadlock when process exit

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: svm range restore work deadlock when process exit kfdprocessnotifierrelease flush svmrangerestorework which calls svmrangelistlockandflushwork to flush deferredlist work, but if deferredlist work mmput release the las...

CVE-2022-49133 drm/amdkfd: svm range restore work deadlock when process exit

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: svm range restore work deadlock when process exit kfdprocessnotifierrelease flush svmrangerestorework which calls svmrangelistlockandflushwork to flush deferredlist work, but if deferredlist work mmput release the las...

CVE-2024-57897

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Correct the migration DMA map direction The SVM DMA device map direction should be set the same as the DMA unmap setting, otherwise the DMA core will report the following warning. Before finialize this solution,...

CVE-2024-57897 drm/amdkfd: Correct the migration DMA map direction

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Correct the migration DMA map direction The SVM DMA device map direction should be set the same as the DMA unmap setting, otherwise the DMA core will report the following warning. Before finialize this solution,...

CVE-2024-50115

CVE-2024-50115 is a Linux kernel vulnerability affecting KVM nSVM where loading PDPTEs from memory incorrectly handles nCR3[4:0]. The issue can cause an out-of-bounds read if a target page is at the end of a memslot, due to not enforcing 32-byte alignment when PAE paging is used. The root cause i...

CVE-2024-50115 KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR34:0 when loading PDPTEs from memory Ignore nCR34:0 when loading PDPTEs from memory for nested SVM, as bits 4:0 of CR3 are ignored when PAE paging is used, and thus VMRUN doesn't enforce 32-byte alignment of...

RockyLinux 9 : kernel (RLSA-2024:8162)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:8162 advisory. kernel: Local information disclosure on IntelR AtomR processors CVE-2023-28746 kernel: netfilter: nftflowoffload: reset dst in route object after setting...

EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-2344)

"According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix a memory leak in an error path of qla2x00processels Commit...

ROS-20240812-16

Vulnerability of the dovccioctl function in the net/atm/ioctl.c module of the ATM Asynchronous Transfer Mode network protocol implementation of the Linux kernel is related to the reuse of a previously exploited ATM protocol. Asynchronous Transfer Mode kernel of the Linux operating system is relat...

kernel: KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()

A security vulnerability was identified in the Linux kernel's Kernel-based Virtual Machine subsystem KVM, specifically affecting the Secure Virtual Machine SVM feature used on AMD processors. The issue arises from a use-after-free condition in the svmregisterencregion function, which can lead to...

RLSA-2024:4211 Important: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack CVE-2020-26555 kernel: TCP-spoofed ghost ACKs and leak leak initial sequence number...

How to Reset the XenServer Host Password on a CloudBridge 2000/3000/4000/5000

This article describes how to reset the XenServer Host password on a CloudBridge 2000/3000/4000/5000. The procedure can be completed when credentials are not working to access the SVM, XS, and Serial Console...

How to Set CloudBridge 2000\3000 SVM Management IP Address Using LOM Port

This article describes how to set CloudBridge 2000\3000 appliance's SVM Management IP address by using the Lights Out Management LOM port. Requirements:- You require a routable remote IP connectivity to the LOM port for Graphical User Interface GUI and access to the Service VM SVM GUI to run the...

CVE-2024-39483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: WARN on vNMI + NMI window iff NMIs are outright masked When requesting an NMI window, WARN on vNMI support being enabled if and only if NMIs are actually masked, i.e. if the vCPU is already handling an NMI. KVM's ABI fo...

CVE-2024-39483

CVE-2024-39483 concerns the Linux kernel KVM: SVM path where a WARN is emitted when requesting an NMI window if NMIs are masked, specifically when the vCPU is already handling an NMI. The issue hinges on the interaction between vNMI and the NMI window/pending/blocked flags: KVM injects one NMI an...

CVE-2024-39483 KVM: SVM: WARN on vNMI + NMI window iff NMIs are outright masked

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: WARN on vNMI + NMI window iff NMIs are outright masked When requesting an NMI window, WARN on vNMI support being enabled if and only if NMIs are actually masked, i.e. if the vCPU is already handling an NMI. KVM's ABI fo...