CVE-2026-46014 KVM: SVM: Add missing save/restore handling of LBR MSRs

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Add missing save/restore handling of LBR MSRs MSRIA32DEBUGCTLMSR and LBR MSRs are currently not enumerated by KVMGETMSRINDEXLIST, and LBR MSRs cannot be set with KVMSETMSRS. So save/restore is completely broken. Fix it ...

CVE-2026-46014

CVE-2026-46014 is a Linux kernel vulnerability affecting KVM/SVM where save/restore of LBR and DEBUGCTL MSRs was incomplete. The issue arose because MSR_IA32_DEBUGCTLMSR and LBR MSRs were not included in the msrs_to_save_base list and could not be set/restored properly, breaking save/restore acro...

CVE-2026-46014

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Add missing save/restore handling of LBR MSRs MSRIA32DEBUGCTLMSR and LBR MSRs are currently not enumerated by KVMGETMSRINDEXLIST, and LBR MSRs cannot be set with KVMSETMSRS. So save/restore is completely broken. Fix it ...

CVE-2026-45933 bpf: Preserve id of register in sync_linked_regs()

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve id of register in synclinkedregs synclinkedregs copies the id of knownreg to reg when propagating bounds of knownreg to reg using the off of knownreg, but when knownreg was linked to reg like: knownreg = reg ; both...

CVE-2026-45933

CVE-2026-45933 affects the Linux kernel BPF verifier. The root cause is that sync_linked_regs() failed to preserve the register ID during bounds propagation, so when known_reg bounds were propagated to reg, reg retained an old/new id mismatch. This can cause incorrect bound propagation across lin...

CVE-2026-45933 bpf: Preserve id of register in sync_linked_regs()

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve id of register in synclinkedregs synclinkedregs copies the id of knownreg to reg when propagating bounds of knownreg to reg using the off of knownreg, but when knownreg was linked to reg like: knownreg = reg ; both...

CVE-2026-45933

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve id of register in synclinkedregs synclinkedregs copies the id of knownreg to reg when propagating bounds of knownreg to reg using the off of knownreg, but when knownreg was linked to reg like: knownreg = reg ; both...

PT-2026-43881

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description In the KVM SVM component, there is a failure in the save and restore handling of Last Branch Record LBR Model Specific Registers MSRs. Specifically, MSR IA32 DEBUGCTLMSR and LBR MSRs are no...

PT-2026-43800

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF verifier where the sync linked regs function incorrectly copies the ID of a known register to another register when propagating bounds. Specifically, if a...

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: regmap-irq: The new numconfigregs property was introduced in regmapaddirqchipfwnode. The commit faa87ce9196d “regmap-irq: Introduce config registers for irq types” added the numconfigregs property. The commit 9edd4f5aee84...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: initialize registers in nftdochain The registers were initialized to prevent a stack leak into the user space...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: phy: lynx-28g: Serialize concurrent physetmodeext calls to shared registers The protocol converter configuration registers PCC8, PCCC, and PCCD implemented by the driver control protocol converters across multiple lanes. Each lan...

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

In the Linux kernel, the following vulnerability has been resolved: dmaengine: fsl-qdma: initializing interrupts after register initialization The interrupts of qDMA are initialized after the registers are configured, so that interrupts that might have been pending from the primary kernel do not...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/ast: Fixed soft lockup issues. There is a while-loop in astdpsetonoff, which could lead to an infinite loop. This is because the register VGACRI-Dx checked in this API is actually a scratch register controlled by an MCU named...

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

A flaw was discovered in KVM. When calling the KVMGETDEBUGREGS ioctl on 32-bit systems, there might be uninitialized portions of the kvm Debugregs structure that could be copied into user space, resulting in an information leak...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Allocate sufficient space for GMU registers In commit 142639a52a01 “drm/msm/a6xx: fix crashstate capture for A650”, we changed a6xxgetgmuregisters to read 3 sets of registers. Unfortunately, we did not change the...

Astra Linux – Vulnerability in Linux 6.1

A flaw was discovered in KVM. An improper check in svmsetx2apicmsrinterception may allow direct access to the host’s x2apic MSRs when the guest resets its APIC, potentially leading to a denial-of-service condition...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Handling jset if a & b ... as a jump in CFG computation. BPFJSET is a conditional jump, and currently, verifier.c:canjump does not take this into account. This can lead to incorrect live registers and incorrect SCC Set of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Protection against accessing NULL pt regs in bpfgettaskstack The taskptregs function can return NULL on the powerpc architecture for kernel threads. This NULL value is then used in bpfgetstack to check for the user mode...