CVE-2026-46197

Analyzed Analyzed - Analysis Complete

AMDKFD SVM ioctl buffer validation flaw

Publication date: 2026-05-28

Last updated on: 2026-06-10

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-28

Last Modified

2026-06-10

Generated

2026-07-08

AI Q&A

2026-05-28

EPSS Evaluated

2026-07-06

NVD

CVE-2026-46197

EUVD

EUVD-2026-32824

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	7.1
linux	linux_kernel	From 5.16 (inc) to 6.1.175 (exc)
linux	linux_kernel	From 6.2 (inc) to 6.6.140 (exc)
linux	linux_kernel	From 6.13 (inc) to 6.18.32 (exc)
linux	linux_kernel	From 6.7 (inc) to 6.12.90 (exc)
linux	linux_kernel	From 5.14 (inc) to 5.15.209 (exc)
linux	linux_kernel	From 6.19 (inc) to 7.0.9 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Linux kernel within the drm/amdkfd component. It involves improper validation of the 'nattr' field in the SVM ioctl call, where the attribute count was not properly checked against the buffer size.

Because the 'nattr' field was not validated correctly, it could lead to out-of-bounds buffer access when user-controlled attribute counts are used, potentially allowing an attacker to read or write memory outside the intended buffer.

Impact Analysis

This vulnerability can lead to out-of-bounds memory access in the Linux kernel, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges by manipulating kernel memory.

Hi! I’m here to help you understand CVE-2026-46197. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70