Answer in brief
CVE-2025-21802 records a Medium severity (CVSS 5.5) vulnerability in net: hns3: fix oops when unload drivers paralleling. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-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-2025-21802 records a Medium severity (CVSS 5.5) vulnerability in net: hns3: fix oops when unload drivers paralleling. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-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/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d36b15e3e7b5937cb1f6ac590a85facc3a320642 <622d92a67656e5c4d2d6ccac02d688ed995418c6 || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <8c640dd3d900cc8988a39c007591f1deee776df4 || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <e876522659012ef2e73834a0b9f1cbe3f74d5fad || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0c || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <82736bb83fb0221319c85c2e9917d0189cd84e1e || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <cafe9a27e22736d4a01b3933e36225f9857c7988 || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <92e5995773774a3e70257e9c95ea03518268bea5 || b06ad258e01389ca3ff13bc180f3fcd6a608f1cd || c4b64011e458aa2b246cd4e42012cfd83d2d9a5c || 9b5a29f0acefa3eb1dbe2fa302b393eeff64d933 || >=5.10.76 <5.10.235 || >=4.19.214 <4.20 || >=5.4.156 <5.5 || >=5.14.15 <5.15 | 622d92a67656e5c4d2d6ccac02d688ed995418c6, 8c640dd3d900cc8988a39c007591f1deee776df4, e876522659012ef2e73834a0b9f1cbe3f74d5fad, b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0c, 82736bb83fb0221319c85c2e9917d0189cd84e1e, cafe9a27e22736d4a01b3933e36225f9857c7988, 92e5995773774a3e70257e9c95ea03518268bea5, 5.10.235, 4.20, 5.5, 5.15 |
| Linux/Linuxgeneric | 5.15 | Not reported |
| 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
Feb 27, 2025
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: net: hns3: fix oops when unload drivers paralleling When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at the time, because it removes all the ae_dev nodes, and it may cause oops. But we can't simply use hnae3_common_lock for this. Because in the process flow of pci_disable_sriov(), it will trigger the remove flow of VF, which will also take hnae3_common_lock. To fixes it, introduce a new mutex to protect the unload process.
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/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d36b15e3e7b5937cb1f6ac590a85facc3a320642 <622d92a67656e5c4d2d6ccac02d688ed995418c6 || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <8c640dd3d900cc8988a39c007591f1deee776df4 || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <e876522659012ef2e73834a0b9f1cbe3f74d5fad || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0c || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <82736bb83fb0221319c85c2e9917d0189cd84e1e || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <cafe9a27e22736d4a01b3933e36225f9857c7988 || >=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <92e5995773774a3e70257e9c95ea03518268bea5 || b06ad258e01389ca3ff13bc180f3fcd6a608f1cd || c4b64011e458aa2b246cd4e42012cfd83d2d9a5c || 9b5a29f0acefa3eb1dbe2fa302b393eeff64d933 || >=5.10.76 <5.10.235 || >=4.19.214 <4.20 || >=5.4.156 <5.5 || >=5.14.15 <5.15 | 622d92a67656e5c4d2d6ccac02d688ed995418c6, 8c640dd3d900cc8988a39c007591f1deee776df4, e876522659012ef2e73834a0b9f1cbe3f74d5fad, b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0c, 82736bb83fb0221319c85c2e9917d0189cd84e1e, cafe9a27e22736d4a01b3933e36225f9857c7988, 92e5995773774a3e70257e9c95ea03518268bea5, 5.10.235, 4.20, 5.5, 5.15 |
| Linux/Linuxgeneric | 5.15 | Not reported |
| 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
Feb 27, 2025
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: net: hns3: fix oops when unload drivers paralleling When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at the time, because it removes all the ae_dev nodes, and it may cause oops. But we can't simply use hnae3_common_lock for this. Because in the process flow of pci_disable_sriov(), it will trigger the remove flow of VF, which will also take hnae3_common_lock. To fixes it, introduce a new mutex to protect the unload process.
Quoted source text, attributed separately from HOL analysis.