RDMA/nldev: validate dynamic counter attribute length (CVE-2026-92523) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92523

RDMA/nldev: validate dynamic counter attribute length

Answer in brief

CVE-2026-92523 records a Unknown severity vulnerability in RDMA/nldev: validate dynamic counter attribute length. 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.

Published Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

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.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=3c3c1f1416392382faa0238e76a70d7810aab2ef <7828d68ae8cad3463e38def5c91668c84e722596 \|\| >=3c3c1f1416392382faa0238e76a70d7810aab2ef <f8e9315236c8b5155158c6955a758e7960b143e6 \|\| >=3c3c1f1416392382faa0238e76a70d7810aab2ef <d00b0d808ca706a04bd198827319a4a287eff82a \|\| >=3c3c1f1416392382faa0238e76a70d7810aab2ef <0bfa897e3e1a61d172f95675b353168bc9290312 \|\| >=3c3c1f1416392382faa0238e76a70d7810aab2ef <c57e238b475e8e1e514499772b8c0db5768be93f \|\| >=3c3c1f1416392382faa0238e76a70d7810aab2ef <74f49255492a62658f36bf2578d7916f1c6ffad1	7828d68ae8cad3463e38def5c91668c84e722596, f8e9315236c8b5155158c6955a758e7960b143e6, d00b0d808ca706a04bd198827319a4a287eff82a, 0bfa897e3e1a61d172f95675b353168bc9290312, c57e238b475e8e1e514499772b8c0db5768be93f, 74f49255492a62658f36bf2578d7916f1c6ffad1
Linux/Linuxgeneric	5.16	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 7828d68ae8cad3463e38def5c91668c84e722596 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: validate dynamic counter attribute length RDMA_NLDEV_ATTR_STAT_HWCOUNTERS is a nested attribute whose children are consumed directly with nla_get_u32(). The top-level policy validates only the container, so it does not establish the fixed shape of each child. Require every child payload to be exactly one u32 before reading it.

Quoted source text, attributed separately from HOL analysis.