Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.10.67, < 5.11 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/472dd7ea5e19a1aeabf1711ddc756777e05ee7c2Patch
- https://git.kernel.org/stable/c/6e516faf04317db2c46cbec4e3b78b4653a5b109Patch
- https://git.kernel.org/stable/c/8c8e8cc91a6ffc79865108279a74fd57d9070a17Patch
FAQ
What is CVE-2022-49359?
CVE-2022-49359 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 correspon...
How severe is CVE-2022-49359?
CVE-2022-49359 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49359?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.