Answer in brief
CVE-2026-92508 records a High severity (CVSS 7.8) vulnerability in RDMA/core: Fix potential use after free in ib_free_cq(). 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 | >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <a804b162f9bc2b38b2ed1b4752eea9faadb1645b || >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <91f8a17a22ab615a03743120e19935e731f28fb9 || >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <76f2cb4f721815c3b6262a6dc2151de88646924c || >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <b8dcca427096fc9c50f1b376847fea72bc842d31 || >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <9abea37942534eeb049335476178696b654b000c || >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <43403fe45379c64fa6276e5a8ede44493e5d2d3d || >=43d781b9fa562f0c6e50f62c870fbfeb9dc85213 <29dc2f8e1c97372c2871a70088707933515fbd5b || 7ac277a01f9017fcde4f3f81670c995992945433 || 093f87dda065e0f618dd577985eccbe85efb9b54 || >=5.8.17 <5.9 || >=5.9.2 <5.10 | a804b162f9bc2b38b2ed1b4752eea9faadb1645b, 91f8a17a22ab615a03743120e19935e731f28fb9, 76f2cb4f721815c3b6262a6dc2151de88646924c, b8dcca427096fc9c50f1b376847fea72bc842d31, 9abea37942534eeb049335476178696b654b000c, 43403fe45379c64fa6276e5a8ede44493e5d2d3d, 29dc2f8e1c97372c2871a70088707933515fbd5b, 5.9, 5.10 |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix potential use after free in ib_free_cq() When accessing a CQ via the netlink path the only synchronization mechanism for the said CQ is rdma_restrack_get(). Currently, rdma_restrack_del() is invoked at the end of ib_free_cq(), which is too late, since by that point vendor-specific resources associated with the CQ might already be freed. This can leave a short window where the CQ remains accessible through restrack, leading to a potential use-after-free. Fix this by moving the rdma_restrack_del() call to be before the freeing of the vendor-specific resources ensuring that the CQ is removed from restrack before its internal resources are released. This guarantees that no new users hold references to a CQ that is in the process of destruction.
Quoted source text, attributed separately from HOL analysis.