CVE-2021-47659
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedFeb 26, 2025
First seenFeb 26, 2025
How to fix
Update
- linux linux_kernel4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3 or later
Patches
- git.kernel.org/stable/c/1e29d829ad51d1472dd035487953a6724b56fc33
- git.kernel.org/stable/c/4ab7e453a3ee88c274cf97bee9487ab92a66d313
- git.kernel.org/stable/c/4b674dd69701c2e22e8e7770c1706a69f3b17269
- git.kernel.org/stable/c/787163d19bc3cdc6ca4b96223f62208534d1cf6b
- git.kernel.org/stable/c/978e3d023256bfaf34a0033d40c94e8a8e70cf3c
- git.kernel.org/stable/c/ad6dd7a2bac86118985c7b3426e175b9d3c1ec4f
- git.kernel.org/stable/c/b5cd108143513e4498027b96ec4710702d186f11
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.14 ≤ v < 4.19.247, 4.20 ≤ v < 5.4.198, 5.5 ≤ v < 5.10.121, 5.11 ≤ v < 5.15.46, 5.16 ≤ v < 5.17.14, 5.18 ≤ v < 5.18.3 | 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3 |
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