Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add NULL check for function pointer in dcn20_set_output_transfer_func
This commit adds a null check for the set_output_gamma function pointer in the dcn20_set_output_transfer_func function. Previously, set_output_gamma was being checked for null at line 1030, but then it was being dereferenced without any null check at line 1048. This could potentially lead to a null pointer dereference error if set_output_gamma is null.
To fix this, we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma at line 1048.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < e8a24767899c86f4c5f1e4d3b2608942d054900f; >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 8c854138b593efbbd8fa46a25f3288c121c1d1a1; >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 02411e9359297512946705b1cd8cf5e6b0806fa0; >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 827380b114f83c30b3e56d1a675980b6d65f7c88; >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 62ed6f0f198da04e884062264df308277628004f |
| Linux | Linux | 4.15 |
References
- https://git.kernel.org/stable/c/02411e9359297512946705b1cd8cf5e6b0806fa0Patch
- https://git.kernel.org/stable/c/62ed6f0f198da04e884062264df308277628004fPatch
- https://git.kernel.org/stable/c/827380b114f83c30b3e56d1a675980b6d65f7c88Patch
- https://git.kernel.org/stable/c/8c854138b593efbbd8fa46a25f3288c121c1d1a1
- https://git.kernel.org/stable/c/e8a24767899c86f4c5f1e4d3b2608942d054900f
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Timeline
- Published
- Oct 21, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified