Double free in Linux kernel - CVE-2026-93070

Vulnerability identifier: #VU150953

CSH Severity: Low

CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-93070

CWE-ID: CWE-415

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to a double free in the Intel IPU6 isys and psys initialization paths when handling MMU initialization or auxiliary-device-addition failures. A local user can trigger error handling after auxiliary device initialization to cause memory corruption.

Linux kernel
Debian Linux
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (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 (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
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/5323ed5a7bb2568191ec676b2035b0396105aa05
• https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2
• https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de
• https://git.kernel.org/stable/c/faa1eb97f0e66bf122f44b62be6b323f86333e9f

• Double free in Linux kernel intel ipu6 driver
• Debian update for linux
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more