Answer in brief
CVE-2026-43337 records a Unknown severity vulnerability in drm/amd/display: Fix NULL pointer dereference in dcn401_init_hw(). 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ca0fb243c3bb53dbbd71d16c76f319bf923ee3d4 <fcc51c81cb472eb460310c477460356dc4845ff7 || >=ca0fb243c3bb53dbbd71d16c76f319bf923ee3d4 <10c13c111d0d7f8e101c742feff264fc98e3f9f7 || >=ca0fb243c3bb53dbbd71d16c76f319bf923ee3d4 <2d4a6f0702c5211e0be8b688c5fc24f082ec74d6 || >=ca0fb243c3bb53dbbd71d16c76f319bf923ee3d4 <e927b36ae18b66b49219eaa9f46edc7b4fdbb25e || e13689793b9c0e7b5749954e77f5f85e68fe7138 || >=6.11.3 <6.12 | fcc51c81cb472eb460310c477460356dc4845ff7, 10c13c111d0d7f8e101c742feff264fc98e3f9f7, 2d4a6f0702c5211e0be8b688c5fc24f082ec74d6, e927b36ae18b66b49219eaa9f46edc7b4fdbb25e, 6.12 |
| Linux/Linuxgeneric | 6.12 | Not reported |
Published upstream
May 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 21, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference in dcn401_init_hw() dcn401_init_hw() assumes that update_bw_bounding_box() is valid when entering the update path. However, the existing condition: ((!fams2_enable && update_bw_bounding_box) || freq_changed) does not guarantee this, as the freq_changed branch can evaluate to true independently of the callback pointer. This can result in calling update_bw_bounding_box() when it is NULL. Fix this by separating the update condition from the pointer checks and ensuring the callback, dc->clk_mgr, and bw_params are validated before use. Fixes the below: ../dc/hwss/dcn401/dcn401_hwseq.c:367 dcn401_init_hw() error: we previously assumed 'dc->res_pool->funcs->update_bw_bounding_box' could be null (see line 362) (cherry picked from commit 86117c5ab42f21562fedb0a64bffea3ee5fcd477)
Quoted source text, attributed separately from HOL analysis.