Linux Distros Unpatched Vulnerability : CVE-2026-89567

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against...

UBUNTU-CVE-2026-89566

In the Linux kernel, the following vulnerability has been resolved: jbd2: check needresched when skipping busy checkpoint buffers journalshrinkonecplist skips busy checkpoint buffers when called with JBD2SHRINKBUSYSKIP. The continue statement on this path also skips the needresched check at the e...

CVE-2026-89567

CVE-2026-89567 affects the jbd2 (Journalling Block Device v2) subsystem of the Linux kernel . The root cause is that the jbd2 shrinker accounts only successfully released checkpoint buffers against its scan budget (nr_to_scan ), meaning busy buffers consume no budget. If a checkpoint transaction ...