---
id: CVE-2026-93160
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  crypto: atmel-ecc - reject hardware ECDH without a public key

  The hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the
  private key stored in the device
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  crypto: atmel-ecc - reject hardware ECDH without a public key

  The hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the
  private key stored in the device. H…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    5e33791dfcc6459e402a524669093cd953d5b2df
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    33241f198287960bba5fc2251400896762650bfa
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    3ea8b780d68f02fe235c5051ce8ac4b4940b9259
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    6457162f74f45284ade2da644a4f0c54758ac0a6
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    2b40bab362d2b598f34e5ccd4694cedc3c2553d4
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    e64d6f1aae8c837cb3f0446bf44108226d7370f4
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    add28e9988902d29ea93f4869280b4a16a049ea5
  - >-
    Linux >= 11105693fa05f499532b330da65c78ff93ed4440 <
    f240f9b588f4e2de89822adebf560a96b5d263ed
  - Linux 4.14
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:11.407'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93160'
references:
  - url: 'https://git.kernel.org/stable/c/2b40bab362d2b598f34e5ccd4694cedc3c2553d4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/33241f198287960bba5fc2251400896762650bfa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3ea8b780d68f02fe235c5051ce8ac4b4940b9259'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5e33791dfcc6459e402a524669093cd953d5b2df'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6457162f74f45284ade2da644a4f0c54758ac0a6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/add28e9988902d29ea93f4869280b4a16a049ea5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e64d6f1aae8c837cb3f0446bf44108226d7370f4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f240f9b588f4e2de89822adebf560a96b5d263ed'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.735Z'
epss: 0.00177
epssPercentile: 0.06396
---

## Overview

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

crypto: atmel-ecc - reject hardware ECDH without a public key

The hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the
private key stored in the device. However, the public key is cached only
after atmel_ecdh_set_secret() successfully generated that private key
for the current tfm.

atmel_ecdh_generate_public_key() already rejects requests when no public
key is cached. Add the same check to atmel_ecdh_compute_shared_secret()
to prevent the device from using a private key that was not generated
for the current tfm.

## Remediation

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