Race condition in Linux kernel - CVE-2026-74405
Published: August 15, 2026
Vulnerability identifier: #VU142722
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74405
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a race condition leading to refcount corruption in the OPP core when adding and looking up dynamic OPP entries concurrently. A local user can trigger concurrent OPP addition and lookup operations to cause a denial of service.
The issue can lead to a potential premature free of a newly added OPP object.
Affected software
Linux kernel
Ubuntu
linux-nvidia-tegra (Ubuntu package)
Ubuntu
linux-nvidia-tegra (Ubuntu package)
How to mitigate CVE-2026-74405
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1035.38
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1035.38