Answer in brief
CVE-2024-26662 records a Medium severity (CVSS 5.5) vulnerability in drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=474ac4a875ca6fea3fc5183d3ad22ef7523dca53 <94a506cbfd1bd4817502bed097e24cbab23cfce3 || >=474ac4a875ca6fea3fc5183d3ad22ef7523dca53 <2e150ccea13129eb048679114808eb9770443e4d || >=474ac4a875ca6fea3fc5183d3ad22ef7523dca53 <0c863cab0e9173f8b6c7bc328bee3b8625f131b5 || >=474ac4a875ca6fea3fc5183d3ad22ef7523dca53 <e96fddb32931d007db12b1fce9b5e8e4c080401b | 94a506cbfd1bd4817502bed097e24cbab23cfce3, 2e150ccea13129eb048679114808eb9770443e4d, 0c863cab0e9173f8b6c7bc328bee3b8625f131b5, e96fddb32931d007db12b1fce9b5e8e4c080401b |
| Linux/Linuxgeneric | 5.9 | Not reported |
Published upstream
Apr 2, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 30, 2026
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)
Quoted source text, attributed separately from HOL analysis.