---
id: CVE-2026-80833
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  crypto: sun8i-ss - Remove crypto_rng interface

  Since the crypto_rng interface for hardware PRNGs is unused and is
  redundant with hwrng and the actual Linux RNG, it's b…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  crypto: sun8i-ss - Remove crypto_rng interface

  Since the crypto_rng interface for hardware PRNGs is unused and is
  redundant with hwrng and the actual Linux RNG, it's b…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ac2614d721dea2ff273af19c6c5d508d58a2bb3e <
    d29ccf9eeb67d775221e49a079caa1af83427afa
  - >-
    Linux >= ac2614d721dea2ff273af19c6c5d508d58a2bb3e <
    7c257a295e05ceb8f78aa3efecc4e9ce19c3313f
  - >-
    Linux >= ac2614d721dea2ff273af19c6c5d508d58a2bb3e <
    8ab58786b4c63b8f1b6c522f33bb67a3c8c2791f
  - >-
    Linux >= ac2614d721dea2ff273af19c6c5d508d58a2bb3e <
    a78446ee6fae86ac8733f120e3ffce2e5d9384f5
  - Linux 5.10
published: '2026-09-04'
updated: '2026-09-07'
sourceUpdated: '2026-09-07T16:17:30.227'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80833'
references:
  - url: 'https://git.kernel.org/stable/c/7c257a295e05ceb8f78aa3efecc4e9ce19c3313f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8ab58786b4c63b8f1b6c522f33bb67a3c8c2791f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a78446ee6fae86ac8733f120e3ffce2e5d9384f5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d29ccf9eeb67d775221e49a079caa1af83427afa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00209
epssPercentile: 0.0978
ingestedAt: '2026-09-08T15:33:26.962Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

crypto: sun8i-ss - Remove crypto_rng interface

Since the crypto_rng interface for hardware PRNGs is unused and is
redundant with hwrng and the actual Linux RNG, it's being phased out.
Most drivers for it were already removed.  Go ahead and remove the
sun8i-ss support which is one of the only remaining ones.

As usual for crypto_rng, this driver was also buggy: its ->generate()
function had a use-after-free vulnerability due to using
wait_for_completion_interruptible_timeout() without handling shutting
down the DMA operation if a signal is sent.  Also, it had a buffer
overread bug in the line 'memcpy(ctx->seed, d + dlen, ctx->slen);'.
There's no point in fixing these bugs separately only to remove the code
anyway, so this commit is marked with Fixes and Cc stable.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.