Answer in brief
CVE-2025-40319 records a High severity (CVSS 7.8) vulnerability in bpf: Sync pending IRQ work before freeing ring buffer. 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.
CVSS is 7.8. 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 | >=457f44363a8894135c85b7a9afd2bd8196db24ab <47626748a2a00068dbbd5836d19076637b4e235b || >=457f44363a8894135c85b7a9afd2bd8196db24ab <de2ce6b14bc3e565708a39bdba3ef9162aeffc72 || >=457f44363a8894135c85b7a9afd2bd8196db24ab <e1828c7a8d8135e21ff6adaaa9458c32aae13b11 || >=457f44363a8894135c85b7a9afd2bd8196db24ab <6451141103547f4efd774e912418a3b4318046c6 || >=457f44363a8894135c85b7a9afd2bd8196db24ab <10ca3b2eec384628bc9f5d8190aed9427ad2dde6 || >=457f44363a8894135c85b7a9afd2bd8196db24ab <430e15544f11f8de26b2b5109c7152f71b78295e || >=457f44363a8894135c85b7a9afd2bd8196db24ab <4e9077638301816a7d73fa1e1b4c1db4a7e3b59c | 47626748a2a00068dbbd5836d19076637b4e235b, de2ce6b14bc3e565708a39bdba3ef9162aeffc72, e1828c7a8d8135e21ff6adaaa9458c32aae13b11, 6451141103547f4efd774e912418a3b4318046c6, 10ca3b2eec384628bc9f5d8190aed9427ad2dde6, 430e15544f11f8de26b2b5109c7152f71b78295e, 4e9077638301816a7d73fa1e1b4c1db4a7e3b59c |
| Linux/Linuxgeneric | 5.8 | Not reported |
Published upstream
Dec 8, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Sync pending IRQ work before freeing ring buffer Fix a race where irq_work can be queued in bpf_ringbuf_commit() but the ring buffer is freed before the work executes. In the syzbot reproducer, a BPF program attached to sched_switch triggers bpf_ringbuf_commit(), queuing an irq_work. If the ring buffer is freed before this work executes, the irq_work thread may accesses freed memory. Calling `irq_work_sync(&rb->work)` ensures that all pending irq_work complete before freeing the buffer.
Quoted source text, attributed separately from HOL analysis.