CVE-2026-74370

Updated on 15 Aug 2026

Severity

Awaiting Analysis

Details

Overview

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

liveupdate: fix TOCTOU race in luo_session_retrieve()

Extend the scope of the rwsem_read lock in luo_session_retrieve() to overlap with the acquisition of the session mutex. This prevents a concurrent thread from releasing and freeing the session between the lookup and the mutex lock.

Details

Affected product:
Debian 10 ELS
Affected packages:
linux @ 4.19.0

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Ubuntu 26.04 Will Not Fix —