CVE-2026-64050 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: don't mix devm and drmm functions Mixing devm and drmm functions will result in a use-after-free on msm driver teardown if userspace keeps a reference on the drm device: The WB connector data will be destroyed because of the use of devm_kzalloc()), while the usersoace still can try interacting with the WB connector (which uses drmm_ functions). Change dpu_writeback_init() to use drmm_. Patchwork: https://patchwork.freedesktop.org/patch/722656/
A use-after-free vulnerability has been identified in the Linux kernel's DRM MSM DPU handling. This issue arises from mixing device-managed and driver-managed functions, which can lead to improper memory management during the teardown of the MSM driver. If userspace retains a reference to the DRM device, the writeback connector data may be prematurely destroyed, while userspace could still attempt to interact with the connector, creating a potential exploitation vector.
Users can apply the available patch to address this vulnerability. The patch is included in the Linux kernel stable tree.
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/95048a12f48c627bc2ccc4d84f87640630ba2bdb | kernel.org | Patch |
| https://git.kernel.org/stable/c/c0c70a11365cba7fba25a77463582bcec0f7846e | kernel.org | Patch |
| https://git.kernel.org/stable/c/ff58e5ef1b46ce614af048d2d04986df05ffab90 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.18, < 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
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 2, 2026 | Initial Analysis | [email protected] |
| Jul 20, 2026 | CVE Modified | kernel.org |
| Jul 19, 2026 | New CVE Received | kernel.org |