Linux RISCV KVM Heap Buffer Overflow DoS

The vulnerability of the kvmriscvvcpuallocvectorcontext function in the arch/riscv/kvm/vcpuvector.c module, which is part of the Linux operating system’s RISCV processor support, involves unlimited distribution of resources. Exploiting this vulnerability could allow an attacker to cause a service...

Linux Distros Unpatched Vulnerability : CVE-2026-46171

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - riscv: kvm: fix vector context allocation leak When the second kzalloc hostcontext.vector.datap fails in kvmriscvvcpuallocvectorcontext, the first allocation...

UBUNTU-CVE-2026-46171

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc hostcontext.vector.datap fails in kvmriscvvcpuallocvectorcontext, the first allocation guestcontext.vector.datap is leaked. Free it before returning...

CVE-2026-46171

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc hostcontext.vector.datap fails in kvmriscvvcpuallocvectorcontext, the first allocation guestcontext.vector.datap is leaked. Free it before returning...

EUVD-2026-32798

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc hostcontext.vector.datap fails in kvmriscvvcpuallocvectorcontext, the first allocation guestcontext.vector.datap is leaked. Free it before returning...

CVE-2026-46171

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc hostcontext.vector.datap fails in kvmriscvvcpuallocvectorcontext, the first allocation guestcontext.vector.datap is leaked. Free it before returning...

CVE-2026-46171

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc hostcontext.vector.datap fails in kvmriscvvcpuallocvectorcontext, the first allocation guestcontext.vector.datap is leaked. Free it before returning...

AZL-68924 CVE-2025-40065 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Write hgatp register with valid mode bits According to the RISC-V Privileged Architecture Spec, when MODE=Bare is selected,software must write zero to the remaining fields of hgatp. We have detected the valid mode...

CVE-2025-40065

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Write hgatp register with valid mode bits According to the RISC-V Privileged Architecture Spec, when MODE=Bare is selected,software must write zero to the remaining fields of hgatp. We have detected the valid mode...

SUSE CVE-2025-39815

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: fix stack overrun when loading vlenb The userspace load can put up to 2048 bits into an xlen bit stack buffer. We want only xlen bits, so check the size beforehand...

PT-2025-44133

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the RISC-V KVM implementation where the hgatp register is written with valid mode bits. The RISC-V Privileged Architecture Specification requires that...

SUSE-SU-2025:20011-1 Security update for qemu

This update for qemu fixes the following issues: - Update to version 8.2.5: target/loongarch: fix a wrong print in cpu dump ui/sdl2: Allow host to power down screen target/i386: fix SSE and SSE2 feature check target/i386: fix xsave.flat from kvm-unit-tests disas/riscv: Decode all of the pmpcfg an...

SUSE CVE-2024-53228

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: Fix out-of-bounds array access In kvmriscvvcpusbiinit the entry-extidx can contain an out-of-bound index. This is used as a special marker for the base extensions, that cannot be disabled. However, when traversing the...

SUSE CVE-2024-47717

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Don't zero-out PMU snapshot area before freeing data With the latest Linux-6.11-rc3, the below NULL pointer crash is observed when SBI PMU snapshot is enabled for the guest and the guest is forcefully powered-off...