CVE-2026-46171 | riscv: kvm: fix vector context allocation leak

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

Published: 2026-05-28 Last update: 2026-05-28 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2026-46171 is rated Low Risk (4.3/100): low exploitation likelihood (EPSS 0.02%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-46171

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 0.02%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-46171

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-46171

GitHub Security Advisory for CVE-2026-46171

GHSA-wxj9-x4vw-8w2j · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector...

OS Trackers for CVE-2026-46171

vendor priority summary link
debian unimportant CVE-2026-46171 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2026-46171
redhat https://access.redhat.com/security/cve/CVE-2026-46171
suse https://www.suse.com/security/cve/CVE-2026-46171/

Affected software / configurations for CVE-2026-46171

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-46171

cvelogic Threat Intelligence