Linux Distros Unpatched Vulnerability : CVE-2026-89566

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jbd2: check needresched when skipping busy checkpoint buffers journalshrinkonecplist skips busy checkpoint buffers when called with JBD2SHRINKBUSYSKIP. The...

Linux Distros Unpatched Vulnerability : CVE-2026-89759

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/kmemleak: avoid soft lockup when scanning task stacks Patch series mm/kmemleak: avoid soft lockup when scanning task, v3. kmemleakscan scans every task stack...

CVE-2026-89759

A flaw was found in the Linux kernel's memory leak detector kmemleak. When kmemleakscan attempts to scan task stacks on systems with a large number of threads, it can hold a CPU for an extended period without allowing other processes to run. This can lead to a 'soft lockup,' where the system...

CVE-2026-89759

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

AZL-100301 CVE-2026-89759 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

UBUNTU-CVE-2026-89759

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

CVE-2026-89759

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

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-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...

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...

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...

UBUNTU-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...

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-2026-89759 mm/kmemleak: avoid soft lockup when scanning task stacks

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

EUVD-2026-76671

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

CVE-2026-89759

CVE-2026-89759 affects the Linux kernel's mm/kmemleak subsystem. The root cause is that kmemleak_scan() walks every task stack under a single rcu_read_lock() with no reschedule point; on hosts with a very large number of threads (amplified by KASAN/lockdep in debug builds), the loop can hog a CPU...

CVE-2026-89759 mm/kmemleak: avoid soft lockup when scanning task stacks

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

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 ...