Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RISCV: Fixed a race condition when vmap stack overflow occurs. Currently, when detecting vmap stack overflow, RISCV first switches to the so-called shadow stack, and then uses this shadow stack to call getoverflowstack, in order ...

Astra Linux – Vulnerability in Linux 5.10

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

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RISCV: kprobe: Fixed kernel panic when probing an illegal position The kernel would panic when trying to probe an illegal position. For example: CONFIGRISCVISAC=n Example code: bash echo 'p:hello kernelclone+0x16 a0=%a0'...

CVE-2026-29649

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011166)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011166 advisory. In the Linux kernel, the following vulnerability has been resolved: RISC-V: Make port I/O string accessors actually work Fix port I/O string accessors such as insb',...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011273)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011273 advisory. In the Linux kernel, the following vulnerability has been resolved: riscv: process: fix kernel info leakage threadstruct's s12 may contain random kernel memory...

EUVD-2026-23944

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...

CVE-2026-29649

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...

PT-2026-33830

NEMU contains an implementation flaw in its RISC-V Hypervisor CSR handling where henvcfg7:4 CBIE/CBCFE/CBZE-related fields is incorrectly masked/updated based on menvcfg7:4, so a machine-mode write to menvcfg can implicitly modify the hypervisor's environment configuration. This can lead to...

XiangShan 安全漏洞

XiangShan is an open-source high-performance RISC-V processor project developed by XiangShan in China. There is a security vulnerability in XiangShan, which stems from specially crafted read and write operations on the menvcfg structure, potentially causing the WPRI bit to be set unexpectedly,...

CVE-2026-29645

NEMU OpenXiangShan/NEMU before v2025.12.r2 contains an improper instruction-validation flaw in its RISC-V Vector RVV decoder. The decoder does not correctly validate the funct3 field when decoding vsetvli/vsetivli/vsetvl, allowing certain invalid OP-V instruction encodings to be misinterpreted an...

CVE-2026-29645

NEMU OpenXiangShan/NEMU before v2025.12.r2 contains an improper instruction-validation flaw in its RISC-V Vector RVV decoder. The decoder does not correctly validate the funct3 field when decoding vsetvli/vsetivli/vsetvl, allowing certain invalid OP-V instruction encodings to be misinterpreted an...

CVE-2026-29642

A local attacker who can execute privileged CSR operations or can induce firmware to do so performs carefully crafted reads/writes to menvcfg e.g., csrrs in M-mode. On affected XiangShan versions commit aecf601e803bfd2371667a3fb60bfcd83c333027, 2024-11-19, these menvcfg accesses can unexpectedly...

CVE-2026-29645

CVE-2026-29645 (NEMU/OpenXiangShan/NEMU) : The RVV decoder in NEMU before v2025.12.r2 has an improper instruction-validation flaw: it does not properly validate the funct3 field when decoding vsetvli/vsetivli/vsetvl. As a result, certain invalid OP-V instruction encodings can be misinterpreted an...

CVE-2026-40323

SP1 is a zero‑knowledge virtual machine that proves the correct execution of programs compiled for the RISC-V architecture. In versions 6.0.0 through 6.0.2, a soundness vulnerability in the SP1 V6 recursive shard verifier allows a malicious prover to construct a recursive proof from a shard proof...

The vulnerability of the SAVE_ABI_STATE() function in the arch/riscv/kernel/mcount.S module of the Linux operating system’s RISCV architecture-based kernel subsystem allows a attacker to trigger a service failure.

The vulnerability of the SAVEABISTATE function in the arch/riscv/kernel/mcount.S module of the Linux operating system’s RISCV-architecture-based module management subsystem is related to buffer overflow based on a stack. Exploiting this vulnerability could allow an attacker to trigger a service...

EUVD-2026-13170

wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted muldi3 subroutine executes in variable time based on operand values. This affects multiple SP math functions sp256mul9, sp256sqr9, etc., leading to a timing...

EUVD-2026-13172

In wolfSSL 5.8.4, constant-time masking logic in sp256getentry2569 is optimized into conditional branches bnez by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret...

CVE-2026-3579

wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted muldi3 subroutine executes in variable time based on operand values. This affects multiple SP math functions sp256mul9, sp256sqr9, etc., leading to a timing...

UBUNTU-CVE-2026-3579

wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted muldi3 subroutine executes in variable time based on operand values. This affects multiple SP math functions sp256mul9, sp256sqr9, etc., leading to a timing...