CVE-2026-89567

A flaw was found in the Linux kernel's jbd2 shrinker. This component, which manages journal buffers, does not correctly account for busy checkpoint buffers. This oversight can cause the shrinker to hold a critical system lock for an extended period when processing many busy buffers. The prolonged...

CVE-2026-89566

A flaw was found in the Linux kernel's jbd2 component. When the kernel's journaling block device jbd2 processes busy checkpoint buffers, it can skip a crucial rescheduling check. This oversight can lead to prolonged holding of a critical lock, causing other central processing units CPUs to wait...

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...

AZL-100253 CVE-2026-89567 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

AZL-100688 CVE-2026-89566 affecting package kernel 6.6.150.1-1

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

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

CVE-2026-89567 jbd2: bound shrinker scans by examined checkpoint buffers

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

CVE-2026-89567 jbd2: bound shrinker scans by examined checkpoint buffers

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

EUVD-2026-76478

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

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 ...

CVE-2026-89566 jbd2: check need_resched() when skipping busy checkpoint buffers

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-2026-89566 jbd2: check need_resched() when skipping busy checkpoint buffers

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...

EUVD-2026-76477

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-2026-89566

CVE-2026-89566 affects the Linux kernel's jbd2 (ext3/ext4 journaling) subsystem. The vulnerability exists in journal_shrink_one_cp_list(): when called with JBD2_SHRINK_BUSY_SKIP, the continue statement used to skip busy checkpoint buffers bypasses the need_resched() check at the end of the loop b...

PT-2026-90282

In the Linux kernel, the following vulnerability has been resolved: jbd2: check need resched when skipping busy checkpoint buffers journal shrink one cp list skips busy checkpoint buffers when called with JBD2 SHRINK BUSY SKIP. The continue statement on this path also skips the need resched check...

PT-2026-90283

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nr to scan. Busy buffers therefore do not consume the scan budget. If a...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053308)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053308 advisory. In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb-ssequence check Journal emptiness is not determined by sb-ssequence == 0 bu...

EUVD-2026-66594

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

SUSE CVE-2026-80528

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

AZL-97689 CVE-2026-80528 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...