Astra Linux – Vulnerability in Linux

A flaw was discovered in the KVM’s AMD code, responsible for supporting SVM nested virtualization. The flaw occurs during the processing of the VMCB virtual machine control block provided by the L1 guest, which is used to spawn or handle a nested guest L2. Due to improper validation of the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: igb: Initialize the mailbox message for VF reset When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. However, the memory is allocated from the stack, which means that information m...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fixed a potential VPE leak upon error. In itsvpeirqdomainalloc, when itsvpeinit returns an error, there is an off-by-one issue with the number of VPEs that need to be freed. This issue was fixed by simply...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: Initialize gfntopfncache locks in dedicated helper Move the gfntopfncache lock initialization to another helper and call the new helper during VM/vCPU creation. There are race conditions possible due to kvmgfntopfncacheinit’...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fixed an stale locked mutex in nouveaugemioctlpushbuf If VMBIND is enabled on the client, the legacy submission ioctl cannot be used. However, if a client attempts to use it anyway, an error will be returned. In this...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

Transmitted requests in Xen’s virtual network protocol can consist of multiple parts. Although none of them are actually useful, except for the initial part, any of these parts can be of zero length, meaning they carry no data at all. In addition to the certain initial portion of the data to be...

Astra Linux – Vulnerability in Chromium

In the Blink Serial API in Google Chrome, a memory access out of bounds was allowed before version 97.0.4692.71. This allowed a remote attacker to perform a memory read through a crafted HTML page and a virtual serial port driver...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rustbinder: Check ownership before using vma. When installing missing pages or zapping them, Rust Binder will look up the vma in the memory management unit by address, and then call vminsertpage or zappagerangesingle. However, if...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/mseal: The end of the current VMA was correctly updated during merging. Previously, we stored the end of the current VMA in currend. When moving to the next VMA, we updated currstart to currend to proceed to the next VMA...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix handling of virtual Fibre Channel timeouts Hyper-V provides the ability to connect Fibre Channel LUNs to the host system and present them as SCSI devices in a guest VM. I/O operations to the vFC device are...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: The function eagerly init vgic dist/redist on vgic creation is vulnerable. If the vgicallocateprivateirqslocked function fails for any reason, we exit kvmvgiccreate early, leaving dist-rdregions uninitialized. The...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ipvs: Fixed the NULL dereference in the error path of ipvsaddservice. When ipvsbindscheduler successfully calls ipvsaddservice, the local variable sched is set to NULL. If ipvsstartestimator subsequently fails, the cleanup code...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/tests: shmem: Holding the reservation lock around vmap/vunmap operations Acquiring and releasing the reservation lock of the GEM object during vmap and vunmap operations. The tests used vmaplocked, which caused errors such...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Handling the case where EIOINTC’s coremap is empty EIOINTC’s coremap in eiointcupdateswcoremap can be empty. Currently, we get a cpuid value of -1 in this case, but we actually need a value of 0, as it is similar ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xen/gntdev: Accommodation for VMA splitting Prior to this commit, the gntdev driver code did not handle the following scenario correctly with paravirtualized PV Xen domains: The user process sets up a gntdev mapping consisting of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/gvt: fixed the issue where vGPU debugfs was cleaned up during the remove operation. Check carefully whether the root debugfs is available when destroying the vGPU. For example, in the remove operation, the DRM minor’s...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: qed/qedsriov: protection against NULL references from qediovgetVFInfo. We must ensure that the information returned by the helper function is valid before using it. This issue was detected by the Linux Verification Center...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: KVM: SVM: Obtain source vCPUs from the source VM for SEV-ES intrahost migration Fixed a bug where KVM attempts to retrieve source vCPUs from the destination VM during intrahost migration. Retrieving the wrong vCPU not only fai...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fixed the initialization of the ID register for non-protected pKVM guests In protected mode, the hypervisor maintains a separate instance of the kvm structure for each VM. For non-protected VMs, this structure is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: KVM: SEV: Rejects attempts to synchronize VMSA of a vCPU that has already been launched/encrypted. Synchronize the vCPU state with its associated VMSA if the vCPU has already been launched, i.e., if the VMSA has already been...