Description
In the Linux kernel, the following vulnerability has been resolved:
f2fs: protect critical_task_priority updates with s_umount
The sysfs store path already takes s_umount for GC thread control entries, and ckpt_thread_ioprio is covered as well.
critical_task_priority also updates checkpoint or GC kthread scheduling state, but it is not covered by that serialization. It can race with remount or teardown paths that are stopping those threads.
Protect critical_task_priority sysfs writes with s_umount too.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
No affected versions have been published.
Timeline
- Published
- Sep 16, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received