Race condition in Linux kernel - CVE-2026-93150

Vulnerability identifier: #VU150850

CSH Severity: Low

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

CVE-ID: CVE-2026-93150

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause incorrect operations.

The vulnerability exists due to a race condition in the cpuset subsystem's nr_deadline_tasks counter when concurrent scheduler-policy changes and cpuset attachment operations update the counter. A local user can perform concurrent scheduler-policy and cpuset attachment operations to cause incorrect operations.

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 kernel - update to 7.0 rc3
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/78d9daf5e13ad1448b7dfebac949936710ec7565
• https://git.kernel.org/stable/c/95220e1f18f6321008f021abc7d6f581f64bcb82
• https://git.kernel.org/stable/c/e422b32e6a57269ca8164c60674a78bee85cf5fb
• https://git.kernel.org/stable/c/e5965ae3f7c918151b87e5c925b7978afbeaf638

• Race condition in Linux kernel cgroup
• Debian update for linux
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more