Key management errors in Linux kernel - CVE-2026-93160

Vulnerability identifier: #VU150844

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-93160

CWE-ID: CWE-320

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to derive a shared secret using a private key not generated for the current transform context.

The vulnerability exists due to improper cryptographic key management in atmel_ecdh_compute_shared_secret() when processing hardware ECDH shared-secret requests without a cached public key. A local user can submit a hardware ECDH shared-secret request without a cached public key to derive a shared secret using a private key not generated for the current transform context.

Linux kernel
Debian Linux
Ubuntu
linux-nvidia-tegra-igx (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-azure-fde (Ubuntu package)
linux (Ubuntu package)
linux-oracle (Ubuntu package)
linux-gcp (Ubuntu package)
linux-aws (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux (Debian package)

Install security update from vendor's repository.

linux-nvidia-tegra-igx (Ubuntu package) - update to 5.15.0-1059.59
linux-nvidia-tegra (Ubuntu package) - update to 5.15.0-1070.72
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1070.72~20.04.1
linux-azure-fde (Ubuntu package) - update to 5.15.0-1124.133
linux (Ubuntu package) - update to 7.0.0-42.42
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17
linux (Debian package) - update to 6.12.111-1

• 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

• Key management errors in Linux kernel crypto driver
• Debian update for linux
• Ubuntu update for linux-azure-fde
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more
• Ubuntu update for linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx
• Ubuntu update for linux, linux-aws, linux-aws-5.15 and more