Integer overflow in Linux kernel - CVE-2026-90341

Vulnerability identifier: #VU151146

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-2026-90341

CWE-ID: CWE-190

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to access memory outside the platform resource.

The vulnerability exists due to integer overflow and insufficient bounds validation in coreboot_table_probe() when processing a malformed coreboot table. A local user can supply a malformed coreboot table to access memory outside the platform resource.

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/2d98a3b89394f283f054a4a54587c14ee89acaf9
• https://git.kernel.org/stable/c/3cca0d6dd4c2636d2514234233cb02db76621607
• https://git.kernel.org/stable/c/88027241c1d2c3213bac937a1c2cb89a5775a413
• https://git.kernel.org/stable/c/a58a57a1076f8c5dae0327e3710899478c3be901
• https://git.kernel.org/stable/c/d848fac90c6f0566e7b93066b0b86024f65f395e
• https://git.kernel.org/stable/c/e82f260a74dea8cdd7857f2cc66f73d0da522bb3
• https://git.kernel.org/stable/c/f79f621215a0944c4a0e1b3b86b99e433ae8c527
• https://git.kernel.org/stable/c/fd93859ecfa5b6495a6863c18fd923a7666def26

• Integer overflow in Linux kernel firmware google 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