---
id: "CVE-2026-19199"
kind: "vulnerability"
aliases: ["CVE-2026-19199"]
title: "GPU kernel driver: integer overflow lets local users read kernel memory"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["gpu-driver", "infrastructure", "linux-kernel", "multi-user"]
not_affected_if: ["no-untrusted-local-users"]
published_at: "2026-10-30T02:17:09+00:00"
first_seen_at: "2026-10-30T02:28:06+00:00"
updated_at: "2026-10-30T02:30:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19199", "first_seen_at": "2026-10-30T02:28:06+00:00"}]
---

# GPU kernel driver: integer overflow lets local users read kernel memory

A 32-bit integer overflow in the KM GPU driver's page-to-byte conversion can produce an undersized kernel buffer. A non-privileged local process can then map physical pages it should not reach into a GPU memory context and read sensitive kernel data.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-30T02:28:06+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-19199

## From the sources

Software installed and run as a non-privileged user may conduct improper system calls to allocate physical memory. A 32-bit integer overflow in the KM driver during page-to-byte conversion of an allocation size can result in an undersized kernel buffer allocation. This may allow unallocated or previously allocated physical pages to be mapped into an attacker-controlled GPU MMU context, leading to disclosure of sensitive kernel data.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_