CVE-2026-74370

medium

Description

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.

References

https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8

https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b

Details

Source: Mitre, NVD

Published: 2026-08-15

Updated: 2026-08-17

Risk Information

CVSS v2

Base Score: 5.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 4.7

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00155