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CVE-2023-53223: drm/msm/dsi: Add missing check for alloc_ordered_workqueue

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-15 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dsi: Add missing check for alloc_ordered_workqueue Add check for the return value of alloc_ordered_workqueue as it may return NULL pointer and cause NULL pointer dereference. Patchwork: https://patchwork.freedesktop.org/patch/517646/

Affected products

• Linux kernel: before 4.14.308; from 4.15 before 4.19.276; from 4.20 before 5.4.235; from 5.5 before 5.10.173; from 5.11 before 5.15.99; from 5.16 before 6.1.16 — fixed in 4.14.308, 4.19.276, 5.10.173, 5.15.99, 5.4.235, 6.1.16

How to fix

Upgrade to a fixed version: Linux kernel 4.14.308, 4.19.276, 5.10.173, 5.15.99. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/115906ca7b535afb1fe7b5406c566ccd3873f82b
• https://git.kernel.org/stable/c/25a6499b1a53d854eda2b161b5c8a20296515dbe
• https://git.kernel.org/stable/c/3a9a4a9725c60f04326b5019a52ce15aee808506
• https://git.kernel.org/stable/c/3e18f157faeeb59034404569e8e07cbe1c0030a7
• https://git.kernel.org/stable/c/540c66180afd59309a442d3bf1f2393464c8b4c5
• https://git.kernel.org/stable/c/5dfe7a5386fde5a656ca06602b31bf50e26954cd
• https://git.kernel.org/stable/c/759ea5677c362fb1e3edc667260ba9f409dc931d
• https://git.kernel.org/stable/c/9257974858ee847b2e1fd552691b8ba5c2fc1c7b

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