CVE-2026-46197 Details
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)
A vulnerability in the Linux kernel's AMD GPU driver (AMDKFD) allows for out-of-bounds buffer access via user-controlled attribute counts. This issue arises in the SVM (Shared Virtual Memory) ioctl, where the 'nattr' field is not properly validated against the buffer size. The vulnerability has been addressed by adding a validation function that checks the expected size of the attributes before processing the ioctl command.
Users can update to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched kernel can be found on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/045e0ff208f0838a246c10204105126611b267a1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6abd3a4417cb73a7d0db7e25bf11fae1074bdba3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/91c6dc5a41695d02dfc6299f106ac38a6c493e52 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ccd060b5c7cc75ae7e211c250b97c5b6272e7efc | kernel.org | Patch |
| https://git.kernel.org/stable/c/daa8bc5f83814b55b71d2b5b3a090d57a5219c21 | kernel.org | Patch |
| https://git.kernel.org/stable/c/db9530a9873a7c85d2266a922589ebcf427fa631 | kernel.org | Patch |
| https://git.kernel.org/stable/c/fb07a0c9c8419164812e07274947f11b1d92dd61 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.14, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.140 >= 6.7, < 6.12.90 >= 6.13, < 6.18.32 >= 6.19, < 7.0.9 7.1 rc1 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 10, 2026 | Initial Analysis | [email protected] |
| Jun 1, 2026 | CVE Modified | kernel.org |
| May 30, 2026 | CVE Modified | kernel.org |
| May 28, 2026 | New CVE Received | kernel.org |