Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' 'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)
Affected products
linux: linux kernel
References7
- git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5 Patch
- git.kernel.org/stable/c/2e150ccea13129eb048679114808eb9770443e4d Patch
- git.kernel.org/stable/c/e96fddb32931d007db12b1fce9b5e8e4c080401b Patch
- git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5 Patch
- git.kernel.org/stable/c/2e150ccea13129eb048679114808eb9770443e4d Patch
- git.kernel.org/stable/c/e96fddb32931d007db12b1fce9b5e8e4c080401b Patch
- git.kernel.org/stable/c/94a506cbfd1bd4817502bed097e24cbab23cfce3
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 13 · as of 5 November 2026
- CWE
- CWE-476
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