Use After Free in Linux
CVE-2022-49359
In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Job should reference MMU not file_priv For a while now it's been allowed for a MMU context to outlive it's corresponding panfrost_priv, however the job structure still references panfrost_priv to get hold of the MMU context. If panfrost_priv has been freed this is a use-after-free which I've been able to trigger resulting in a splat. To fix this, drop the reference to panfrost_priv in the job structure and add a direct reference to the MMU structure which is what's actually needed.
Vulnerability class: Use-After-Free
EPSS: 0.003 (18.9th 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 5.13.19, 5.10.67, 5.19
- Linux Linux_kernel — versions 5.19
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2022-49359?
- CVE-2022-49359 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2025-02-26.
- How severe is CVE-2022-49359?
- High severity. CVSS v3 base score is 7.8 out of 10.