crypto: xilinx-trng - Remove crypto_rng interface (CVE-2026-80871) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80871

crypto: xilinx-trng - Remove crypto_rng interface

Answer in brief

CVE-2026-80871 records a Unknown severity vulnerability in crypto: xilinx-trng - Remove crypto_rng interface. 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 4, 2026Updated Sep 4, 2026Source checked Sep 4, 2026First seen by HOL Sep 4, 2026Material review Sep 4, 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	>=8979744aca8096ee5072798dfc1181606919b35d <83f29da85dc9d9a32fe62cd1055e8e6705e6bf80 \|\| >=8979744aca8096ee5072798dfc1181606919b35d <9634db561e1594c151923f4950c012161c545c93 \|\| >=8979744aca8096ee5072798dfc1181606919b35d <32b4d29280ed2a991dc196d5845b892acedc63b8	83f29da85dc9d9a32fe62cd1055e8e6705e6bf80, 9634db561e1594c151923f4950c012161c545c93, 32b4d29280ed2a991dc196d5845b892acedc63b8
Linux/Linuxgeneric	6.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 83f29da85dc9d9a32fe62cd1055e8e6705e6bf80 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 4, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: crypto: xilinx-trng - Remove crypto_rng interface Implementing the crypto_rng interface has no purpose, as it isn't used in practice. It's being removed from other drivers too. Just remove it. This leaves hwrng, which is actually used. Tagging with 'Cc stable' due to the bugs that this removes: - xtrng_trng_generate() sometimes returned success even when it didn't fill in all the bytes. - It was possible for xtrng_trng_generate() and xtrng_hwrng_trng_read() to run concurrently and interfere with each other, as the locking code in xtrng_hwrng_trng_read() was broken.

Quoted source text, attributed separately from HOL analysis.