Answer in brief
CVE-2025-38533 records a Unknown severity vulnerability in net: libwx: fix the using of Rx buffer DMA. 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 | >=3c47e8ae113a68da47987750d9896e325d0aeedd <027701180a7bcb64c42eab291133ef0c87b5b6c5 || >=3c47e8ae113a68da47987750d9896e325d0aeedd <ba7c793f96c1c2b944bb6f423d7243f3afc30fe9 || >=3c47e8ae113a68da47987750d9896e325d0aeedd <05c37b574997892a40a0e9b9b88a481566b2367d || >=3c47e8ae113a68da47987750d9896e325d0aeedd <5fd77cc6bd9b368431a815a780e407b7781bcca0 | 027701180a7bcb64c42eab291133ef0c87b5b6c5, ba7c793f96c1c2b944bb6f423d7243f3afc30fe9, 05c37b574997892a40a0e9b9b88a481566b2367d, 5fd77cc6bd9b368431a815a780e407b7781bcca0 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Aug 16, 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: net: libwx: fix the using of Rx buffer DMA The wx_rx_buffer structure contained two DMA address fields: 'dma' and 'page_dma'. However, only 'page_dma' was actually initialized and used to program the Rx descriptor. But 'dma' was uninitialized and used in some paths. This could lead to undefined behavior, including DMA errors or use-after-free, if the uninitialized 'dma' was used. Althrough such error has not yet occurred, it is worth fixing in the code.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-38533 records a Unknown severity vulnerability in net: libwx: fix the using of Rx buffer DMA. 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 | >=3c47e8ae113a68da47987750d9896e325d0aeedd <027701180a7bcb64c42eab291133ef0c87b5b6c5 || >=3c47e8ae113a68da47987750d9896e325d0aeedd <ba7c793f96c1c2b944bb6f423d7243f3afc30fe9 || >=3c47e8ae113a68da47987750d9896e325d0aeedd <05c37b574997892a40a0e9b9b88a481566b2367d || >=3c47e8ae113a68da47987750d9896e325d0aeedd <5fd77cc6bd9b368431a815a780e407b7781bcca0 | 027701180a7bcb64c42eab291133ef0c87b5b6c5, ba7c793f96c1c2b944bb6f423d7243f3afc30fe9, 05c37b574997892a40a0e9b9b88a481566b2367d, 5fd77cc6bd9b368431a815a780e407b7781bcca0 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Aug 16, 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: net: libwx: fix the using of Rx buffer DMA The wx_rx_buffer structure contained two DMA address fields: 'dma' and 'page_dma'. However, only 'page_dma' was actually initialized and used to program the Rx descriptor. But 'dma' was uninitialized and used in some paths. This could lead to undefined behavior, including DMA errors or use-after-free, if the uninitialized 'dma' was used. Althrough such error has not yet occurred, it is worth fixing in the code.
Quoted source text, attributed separately from HOL analysis.