RDMA/erdma: complete object teardown when the destroy command fails (CVE-2026-92488) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92488

RDMA/erdma: complete object teardown when the destroy command fails

Answer in brief

CVE-2026-92488 records a Unknown severity vulnerability in RDMA/erdma: complete object teardown when the destroy command fails. 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	>=155055771704f8cbb5c176a4309b7dc30a50450c <5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe \|\| >=155055771704f8cbb5c176a4309b7dc30a50450c <ce7d205c264665517c25e8a3231cf2d0c2443e3c \|\| >=155055771704f8cbb5c176a4309b7dc30a50450c <334145d683ad3e31d052247f10807f2ebc950351 \|\| >=155055771704f8cbb5c176a4309b7dc30a50450c <652befcba956ef357f480525ccbe25c59bc81d4d	5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe, ce7d205c264665517c25e8a3231cf2d0c2443e3c, 334145d683ad3e31d052247f10807f2ebc950351, 652befcba956ef357f480525ccbe25c59bc81d4d
Linux/Linuxgeneric	6.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe 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/erdma: complete object teardown when the destroy command fails erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and erdma_destroy_ah() returned early when erdma_post_cmd_wait() failed, leaking the queue buffers, MTTs, doorbells and the STAG, QPN, CQN and AHN identifiers. A command timeout clears ERDMA_CMDQ_STATE_OK_BIT and permanently disables the command queue, so no retry can succeed; the RDMA core keeps the object after a failed destructor and forced uverbs cleanup then nulls the pointers, making the resources unreachable. Warn on failure but release every software-owned resource and return success, since during terminal destruction the hardware command result is only diagnostic.

Quoted source text, attributed separately from HOL analysis.