CVE-2026-93160

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

Published Sep 17, 2026 CVSS n/a EPSS < 1% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< 5e33791dfcc6459e402a524669093cd953d5b2df
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< 33241f198287960bba5fc2251400896762650bfa
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< 3ea8b780d68f02fe235c5051ce8ac4b4940b9259
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< 6457162f74f45284ade2da644a4f0c54758ac0a6
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< 2b40bab362d2b598f34e5ccd4694cedc3c2553d4
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< e64d6f1aae8c837cb3f0446bf44108226d7370f4
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< add28e9988902d29ea93f4869280b4a16a049ea5
`11105693fa05f499532b330da65c78ff93ed4440`	affected	< f240f9b588f4e2de89822adebf560a96b5d263ed

Linux

affected

Version	Status	Constraints
`4.14`	affected	—
`0`	unaffected	< 4.14
`5.10.270`	unaffected	≤ 5.10.*
`5.15.221`	unaffected	≤ 5.15.*
`6.1.188`	unaffected	≤ 6.1.*
`6.6.157`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.52`	unaffected	≤ 6.18.*
`7.2.6`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[11105693fa05f499532b330da65c78ff93ed4440,5e33791dfcc6459e402a524669093cd953d5b2df)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,33241f198287960bba5fc2251400896762650bfa)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,3ea8b780d68f02fe235c5051ce8ac4b4940b9259)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,6457162f74f45284ade2da644a4f0c54758ac0a6)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,2b40bab362d2b598f34e5ccd4694cedc3c2553d4)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,e64d6f1aae8c837cb3f0446bf44108226d7370f4)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,add28e9988902d29ea93f4869280b4a16a049ea5)`	affected	code_commit	—
`[11105693fa05f499532b330da65c78ff93ed4440,f240f9b588f4e2de89822adebf560a96b5d263ed)`	affected	code_commit	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`4.14`	affected	generic	—
`[0,4.14)`	unaffected	generic	—
`[5.10.270,5.11.0)`	unaffected	semver	—
`[5.15.221,5.16.0)`	unaffected	semver	—
`[6.1.188,6.2.0)`	unaffected	semver	—
`[6.6.157,6.7.0)`	unaffected	semver	—
`[6.12.110,6.13.0)`	unaffected	semver	—
`[6.18.52,6.19.0)`	unaffected	semver	—
`[7.2.6,7.3.0)`	unaffected	semver	—
`7.3-rc1`	unaffected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4817-1	linux-6.12 security update
Debian DLA	DLA-4841-1	linux security update
Debian DSA	DSA-6528-1	linux security update
Ubuntu USN	USN-8961-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9029-1	Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.177% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/2b40bab362d2b598f34e5ccd4694cedc3c2553d4
https://git.kernel.org/stable/c/33241f198287960bba5fc2251400896762650bfa
https://git.kernel.org/stable/c/3ea8b780d68f02fe235c5051ce8ac4b4940b9259
https://git.kernel.org/stable/c/5e33791dfcc6459e402a524669093cd953d5b2df
https://git.kernel.org/stable/c/6457162f74f45284ade2da644a4f0c54758ac0a6
https://git.kernel.org/stable/c/add28e9988902d29ea93f4869280b4a16a049ea5
https://git.kernel.org/stable/c/e64d6f1aae8c837cb3f0446bf44108226d7370f4
https://git.kernel.org/stable/c/f240f9b588f4e2de89822adebf560a96b5d263ed

History

Sep 19, 2026 8:00 AM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-665

Sep 17, 2026 4:30 PM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
Description		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.
Title		crypto: atmel-ecc - reject hardware ECDH without a public key
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/2b40bab362d2b598f34e5ccd4694cedc3c2553d4 https://git.kernel.org/stable/c/33241f198287960bba5fc2251400896762650bfa https://git.kernel.org/stable/c/3ea8b780d68f02fe235c5051ce8ac4b4940b9259 https://git.kernel.org/stable/c/5e33791dfcc6459e402a524669093cd953d5b2df https://git.kernel.org/stable/c/6457162f74f45284ade2da644a4f0c54758ac0a6 https://git.kernel.org/stable/c/add28e9988902d29ea93f4869280b4a16a049ea5 https://git.kernel.org/stable/c/e64d6f1aae8c837cb3f0446bf44108226d7370f4 https://git.kernel.org/stable/c/f240f9b588f4e2de89822adebf560a96b5d263ed