Use After Free in Linux
CVE-2026-64050
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/
Vulnerability class: Use-After-Free
EPSS: 0.001 (2.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b, 6.18, 0
- Linux Linux_kernel — versions 7.1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-64050?
- CVE-2026-64050 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2026-07-19.
- How severe is CVE-2026-64050?
- High severity. CVSS v3 base score is 7.8 out of 10.