Answer in brief
CVE-2025-39978 records a Unknown severity vulnerability in octeontx2-pf: Fix potential use after free in otx2_tc_add_flow(). 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-2025-39978 records a Unknown severity vulnerability in octeontx2-pf: Fix potential use after free in otx2_tc_add_flow(). 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.
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), 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 | 5.14 | Not reported |
| Linux/Linuxgeneric | >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <5723120423a753a220b8b2954b273838b9d7e74a || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <df2c071061ed52d2225d97b212d27ecedf456b8a || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <c41b2941a024d4ec7c768e16ffb10a74b188fced || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <a8a63f27c3a8a3714210d32b12fd0f16d0337414 || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <d9c70e93ec5988ab07ad2a92d9f9d12867f02c56 | 5723120423a753a220b8b2954b273838b9d7e74a, df2c071061ed52d2225d97b212d27ecedf456b8a, c41b2941a024d4ec7c768e16ffb10a74b188fced, a8a63f27c3a8a3714210d32b12fd0f16d0337414, d9c70e93ec5988ab07ad2a92d9f9d12867f02c56 |
| 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
Oct 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node" and then dereferences it on the next line. Two lines later, we take a mutex so I don't think this is an RCU safe region. Re-order it to do the dereferences before queuing up the free.
Quoted source text, attributed separately from HOL analysis.
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), 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 | 5.14 | Not reported |
| Linux/Linuxgeneric | >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <5723120423a753a220b8b2954b273838b9d7e74a || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <df2c071061ed52d2225d97b212d27ecedf456b8a || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <c41b2941a024d4ec7c768e16ffb10a74b188fced || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <a8a63f27c3a8a3714210d32b12fd0f16d0337414 || >=68fbff68dbea35f9e6f7649dd22fce492a5aedac <d9c70e93ec5988ab07ad2a92d9f9d12867f02c56 | 5723120423a753a220b8b2954b273838b9d7e74a, df2c071061ed52d2225d97b212d27ecedf456b8a, c41b2941a024d4ec7c768e16ffb10a74b188fced, a8a63f27c3a8a3714210d32b12fd0f16d0337414, d9c70e93ec5988ab07ad2a92d9f9d12867f02c56 |
| 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
Oct 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node" and then dereferences it on the next line. Two lines later, we take a mutex so I don't think this is an RCU safe region. Re-order it to do the dereferences before queuing up the free.
Quoted source text, attributed separately from HOL analysis.