Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/plane: Move range check for format_count earlier While the check for format_count > 64 in __drm_universal_plane_init() shouldn't be hit (it's a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.14, < 4.19.247 |
References
- https://git.kernel.org/stable/c/1e29d829ad51d1472dd035487953a6724b56fc33Patch
- https://git.kernel.org/stable/c/4ab7e453a3ee88c274cf97bee9487ab92a66d313Patch
- https://git.kernel.org/stable/c/4b674dd69701c2e22e8e7770c1706a69f3b17269Patch
- https://git.kernel.org/stable/c/787163d19bc3cdc6ca4b96223f62208534d1cf6bPatch
- https://git.kernel.org/stable/c/978e3d023256bfaf34a0033d40c94e8a8e70cf3cPatch
- https://git.kernel.org/stable/c/ad6dd7a2bac86118985c7b3426e175b9d3c1ec4fPatch
- https://git.kernel.org/stable/c/b5cd108143513e4498027b96ec4710702d186f11Patch
FAQ
What is CVE-2021-47659?
CVE-2021-47659 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: drm/plane: Move range check for format_count earlier While the check for format_count > 64 in __drm_universal_plane_init() shouldn...
How severe is CVE-2021-47659?
CVE-2021-47659 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47659?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.