Answer in brief
CVE-2025-38083 records a Unknown severity vulnerability in net_sched: prio: fix a race in prio_tune(). 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 | >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <53d11560e957d53ee87a0653d258038ce12361b7 || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <4483d8b9127591c60c4eb789d6cab953bc4522a9 || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4 || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <46c15c9d0f65c9ba857d63f53264f4b17e8a715f || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <e3f6745006dc9423d2b065b90f191cfa11b1b584 || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <93f9eeb678d4c9c1abf720b3615fa8299a490845 || >=7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 <d35acc1be3480505b5931f17e4ea9b7617fea4d3 | 53d11560e957d53ee87a0653d258038ce12361b7, 4483d8b9127591c60c4eb789d6cab953bc4522a9, 20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f, 3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4, 46c15c9d0f65c9ba857d63f53264f4b17e8a715f, e3f6745006dc9423d2b065b90f191cfa11b1b584, 93f9eeb678d4c9c1abf720b3615fa8299a490845, d35acc1be3480505b5931f17e4ea9b7617fea4d3 |
| Linux/Linuxgeneric | 5.0 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Jun 20, 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_sched: prio: fix a race in prio_tune() Gerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer fires at the wrong time. The race is as follows: CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() This can be abused to underflow a parent's qlen. Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.
Quoted source text, attributed separately from HOL analysis.