CVE-2026-64049 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx Before a5xx Adreno driver will not try fetching UBWC params (because those generations didn't support UBWC anyway), however it's still possible to query UBWC-related params from the userspace, triggering possible NULL pointer dereference. Check for UBWC config in adreno_get_param() and return sane defaults if there is none. Patchwork: https://patchwork.freedesktop.org/patch/717778/
A vulnerability in the Linux kernel's Adreno graphics driver (for A2XX to A4XX generations) can lead to a userspace-triggered crash. The issue arises because the driver does not fetch Unified Bandwidth Compression (UBWC) parameters for these older generations, yet it still allows querying of UBWC-related parameters from userspace. This can trigger a NULL pointer dereference. The vulnerability has been addressed by adding a check for UBWC configuration in the 'adreno_get_param()' function and returning safe default values when none are available.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed.
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/22fc33d9b67694b24e0deb3f08c622464338cecb | kernel.org | Patch |
| https://git.kernel.org/stable/c/2b4abf879360ea00a9e2b46d2d15dcdbc0687eed | kernel.org | Patch |
| https://git.kernel.org/stable/c/eea43d5ed45089705bc5d70971c39076962d5951 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.17, < 6.18.34 >= 6.19, < 7.0.11 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 2, 2026 | Initial Analysis | [email protected] |
| Jul 19, 2026 | New CVE Received | kernel.org |