Answer in brief
CVE-2025-21985 records a Unknown severity vulnerability in drm/amd/display: Fix out-of-bound accesses. 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 | >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <36793d90d76f667d26c6dd025571481ee0c96abc || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9aedc776b11038f04f4641241bb7e877781e4aa4 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <8adbb2a98b00926315fd513b5fe2596b5716b82d | 36793d90d76f667d26c6dd025571481ee0c96abc, 9aedc776b11038f04f4641241bb7e877781e4aa4, 8adbb2a98b00926315fd513b5fe2596b5716b82d |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Apr 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bound accesses [WHAT & HOW] hpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4), but location can have size up to 6. As a result, it is necessary to check location against MAX_HPO_DP2_ENCODERS. Similiarly, disp_cfg_stream_location can be used as an array index which should be 0..5, so the ASSERT's conditions should be less without equal.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-21985 records a Unknown severity vulnerability in drm/amd/display: Fix out-of-bound accesses. 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 | >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <36793d90d76f667d26c6dd025571481ee0c96abc || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9aedc776b11038f04f4641241bb7e877781e4aa4 || >=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <8adbb2a98b00926315fd513b5fe2596b5716b82d | 36793d90d76f667d26c6dd025571481ee0c96abc, 9aedc776b11038f04f4641241bb7e877781e4aa4, 8adbb2a98b00926315fd513b5fe2596b5716b82d |
| Linux/Linuxgeneric | 4.15 | Not reported |
Published upstream
Apr 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bound accesses [WHAT & HOW] hpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4), but location can have size up to 6. As a result, it is necessary to check location against MAX_HPO_DP2_ENCODERS. Similiarly, disp_cfg_stream_location can be used as an array index which should be 0..5, so the ASSERT's conditions should be less without equal.
Quoted source text, attributed separately from HOL analysis.