Answer in brief
CVE-2025-71186 records a Medium severity (CVSS 5.5) vulnerability in dmaengine: stm32: dmamux: fix device leak on route allocation. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-71186 records a Medium severity (CVSS 5.5) vulnerability in dmaengine: stm32: dmamux: fix device leak on route allocation. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. 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), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <3b42020e6790a5e19b36c187ed5b488a5716f97f || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <6393da54dcb3488c080a183c4182ddec71ba8d7f || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <1dda2a32303df0091896b01a9d09070d61fa344c || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <1a179ac01ff3993ab97e33cc77c316ed7415cda1 || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <2fb10259d4efb4367787b5ae9c94192e8a91c648 || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <3ef52d31cce8ba816739085a61efe07b63c6cf27 || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <dd6e4943889fb354efa3f700e42739da9bddb6ef | 3b42020e6790a5e19b36c187ed5b488a5716f97f, 6393da54dcb3488c080a183c4182ddec71ba8d7f, 1dda2a32303df0091896b01a9d09070d61fa344c, 1a179ac01ff3993ab97e33cc77c316ed7415cda1, 2fb10259d4efb4367787b5ae9c94192e8a91c648, 3ef52d31cce8ba816739085a61efe07b63c6cf27, dd6e4943889fb354efa3f700e42739da9bddb6ef |
| Linux/Linuxgeneric | 4.15 | Not reported |
| Siemens/RUGGEDCOM RST2428Pgeneric | >=0 <V4.0 | V4.0 |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jan 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.
Quoted source text, attributed separately from HOL analysis.
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), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <3b42020e6790a5e19b36c187ed5b488a5716f97f || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <6393da54dcb3488c080a183c4182ddec71ba8d7f || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <1dda2a32303df0091896b01a9d09070d61fa344c || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <1a179ac01ff3993ab97e33cc77c316ed7415cda1 || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <2fb10259d4efb4367787b5ae9c94192e8a91c648 || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <3ef52d31cce8ba816739085a61efe07b63c6cf27 || >=df7e762db5f6c8dbd9e480f1c9ef9851de346657 <dd6e4943889fb354efa3f700e42739da9bddb6ef | 3b42020e6790a5e19b36c187ed5b488a5716f97f, 6393da54dcb3488c080a183c4182ddec71ba8d7f, 1dda2a32303df0091896b01a9d09070d61fa344c, 1a179ac01ff3993ab97e33cc77c316ed7415cda1, 2fb10259d4efb4367787b5ae9c94192e8a91c648, 3ef52d31cce8ba816739085a61efe07b63c6cf27, dd6e4943889fb354efa3f700e42739da9bddb6ef |
| Linux/Linuxgeneric | 4.15 | Not reported |
| Siemens/RUGGEDCOM RST2428Pgeneric | >=0 <V4.0 | V4.0 |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jan 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.
Quoted source text, attributed separately from HOL analysis.