CVE-2026-72355: kernel: netfs: Fix barriering when walking subrequest list

Severity: Critical

CVSS Score: 9.8

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix barriering when walking subrequest list Fix the barriering used when walking the subrequest list in retry as there's a possibility of seeing a subreq that's just been added by the application thread.