CVE-2026-23234 f2fs: fix to avoid UAF in f2fs_write_end_io()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid UAF in f2fswriteendio As syzbot reported an use-after-free issue in f2fswriteendio. It is caused by below race condition: loop device umount - workerthread - loopprocesswork - doreqfilebacked - lorwaio -...

CVE-2026-23234

CVE-2026-23234 affects the Linux kernel F2FS subsystem. A use-after-free can occur in f2fs_write_end_io() due to a race with kill_f2fs_super freeing sbi before writeback complete, allowing access to freed sbi during page cache/inode cleanup. The published fix relocates the checkpoint thread wakeu...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005418)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005418 advisory. In the Linux kernel, the following vulnerability has been resolved: quota: flush quotareleasework upon quota writeback One of the paths quota writeback is called fr...

The vulnerability of the wb inode_writeback_end() function in the fs/fs-writeback.c file of the Linux kernel file system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the wb inodewritebackend function in the fs/fs-writeback.c file of the Linux kernel file system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of...

Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-112 (ALASKERNEL-5.10-2026-112)

The version of kernel installed on the remote host is prior to 5.10.247-246.989. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2026-112 advisory. In the Linux kernel, the following vulnerability has been resolved: RDMA/restrack: Release MR restrack...

SUSE CVE-2026-23157

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not strictly require dirty metadata threshold for metadata writepages BUG There is an internal report that over 1000 processes are waiting at the ioscheduletimeout of balancedirtypages, causing a system hang and trigger...

SUSE CVE-2026-23168

In the Linux kernel, the following vulnerability has been resolved: flexproportions: make fpropnewperiod hardirq safe Bernd has reported a lockdep splat from flexible proportions code that is essentially complaining about the following race: runtimersoftirq - we are in softirq context calltimerfn...

Siemens SIMATIC S7-1500 Use After Free (CVE-2025-39866)

"In the Linux kernel, the following vulnerability has been resolved: fs: writeback: fix use-after-free in markinodedirty An use- after-free issue occurred when markinodedirty get the bdiwriteback that was in the progress of switching. CPU: 1 PID: 562 Comm: systemd-random- Not tainted...

CVE-2026-23168

In the Linux kernel, the following vulnerability has been resolved: flexproportions: make fpropnewperiod hardirq safe Bernd has reported a lockdep splat from flexible proportions code that is essentially complaining about the following race: runtimersoftirq - we are in softirq context calltimerfn...

CVE-2026-23157

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not strictly require dirty metadata threshold for metadata writepages BUG There is an internal report that over 1000 processes are waiting at the ioscheduletimeout of balancedirtypages, causing a system hang and trigger...

CVE-2026-23168

In the Linux kernel, the following vulnerability has been resolved: flexproportions: make fpropnewperiod hardirq safe Bernd has reported a lockdep splat from flexible proportions code that is essentially complaining about the following race: runtimersoftirq - we are in softirq context calltimerfn...

UBUNTU-CVE-2026-23157

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not strictly require dirty metadata threshold for metadata writepages BUG There is an internal report that over 1000 processes are waiting at the ioscheduletimeout of balancedirtypages, causing a system hang and trigger...

CVE-2026-23168

In the Linux kernel, the following vulnerability has been resolved: flexproportions: make fpropnewperiod hardirq safe Bernd has reported a lockdep splat from flexible proportions code that is essentially complaining about the following race: runtimersoftirq - we are in softirq context calltimerfn...

CVE-2026-23157

CVE-2026-23157 is a Linux kernel vulnerability affecting the btrfs metadata writeback path. The issue occurs in the balance between dirty pages and a cgroup/global dirty limit, where an internal 32 MiB threshold for btrfs btree inode writeback prevents progress when the cgroup’s dirty pages excee...

SUSE CVE-2026-23053

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

CVE-2026-23109

In the Linux kernel, the following vulnerability has been resolved: fs/writeback: skip ASNODATAINTEGRITY mappings in waitsbinodes Above the while loop in waitsbinodes, we document that we must wait for all pages under writeback for data integrity. Consequently, if a mapping, like fuse,...

CVE-2026-23053

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

AZL-77157 CVE-2026-23053 affecting package kernel for versions less than 6.6.130.1-1

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

CVE-2026-23053

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

UBUNTU-CVE-2026-23109

In the Linux kernel, the following vulnerability has been resolved: fs/writeback: skip ASNODATAINTEGRITY mappings in waitsbinodes Above the while loop in waitsbinodes, we document that we must wait for all pages under writeback for data integrity. Consequently, if a mapping, like fuse,...