What’s Vulnerable › Vulnerabilities

CVE-2023-53284: drm/msm/dpu: check for null return of devm_kzalloc() in dpu_writeback_init()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-16 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: check for null return of devm_kzalloc() in dpu_writeback_init() Because of the possilble failure of devm_kzalloc(), dpu_wb_conn might be NULL and will cause null pointer dereference later. Therefore, it might be better to check it and directly return -ENOMEM. Patchwork: https://patchwork.freedesktop.org/patch/512277/ [DB: fixed typo in commit message]

Affected products

• Linux kernel: from 5.19 before 6.1.16; from 6.2 before 6.2.3 — fixed in 6.1.16, 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 6.1.16, 6.2.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/21e9a838f505178e109ccb3bf19d7808eb0326f4
• https://git.kernel.org/stable/c/3723c4dbcd14cc96771000ce0b0540801e6ba059
• https://git.kernel.org/stable/c/5ee51b19855c5dd72aca57b8014f3b70d7798733

Get alerted when CVE-2023-53284 or the next vulnerability affects your stack