CVE-2026-89831

CVE-2026-89831 affects the f2fs filesystem in the Linux kernel. The critical_task_priority sysfs attribute updates checkpoint or GC kthread scheduling state but was not serialized with the s_umount lock, unlike the similar GC thread control entries and ckpt_thread_ioprio . This omission allows a ...

EUVD-2026-80431

In the Linux kernel, the following vulnerability has been resolved: f2fs: protect criticaltaskpriority updates with sumount The sysfs store path already takes sumount for GC thread control entries, and ckptthreadioprio is covered as well. criticaltaskpriority also updates checkpoint or GC kthread...