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Vulnerability record · CVE-2026-64050 · published 19 July 2026

CVE-2026-64050: Linux kernel use after free vulnerability

Linux · Linux Kernel

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/

7.8 CVSS 3.1 High EPSS 0.17% · top 94.5% CWE-416 · Use after free
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
2 Sep 2026Last modified by NVD

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/

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/95048a12f48c627bc2ccc4d84f87640630ba2bdb Patch
https://git.kernel.org/stable/c/c0c70a11365cba7fba25a77463582bcec0f7846e Patch
https://git.kernel.org/stable/c/ff58e5ef1b46ce614af048d2d04986df05ffab90 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-64050), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.