CVE-2026-90236

A flaw was found in the Network File System Daemon NFSD of the Linux kernel. This vulnerability occurs due to an improper handling of export references when reaping open state IDs. An unreleased reference can pin an export, preventing the file system from being unmounted. This could allow a local...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xfs: Stop reclaiming resources before pushing AIL during unmount. The unmount sequence in xfsunmountFlushInodes pushes AIL while background reclaim and inodegc are still running. This behavior is incorrect—it happens regardless o...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fixed a rare race condition in gdlmputlock In gdlmputlock, there is a short period of time during which the DFLUNMOUNT flag is set, but the lockspace has not yet been released. During that period, dlm may still call gdlmast...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed a hang that occurred during unmount when the block group reclaim task was running. When starting an unmount, at closectree, if the reclaim task is running and is in the middle of a data block group relocation, it ...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nilfs2: A use-after-free bug in nilfsroot has been fixed in nilfsevictinode. During the unmount process of nilfs2, nothing holds the nilfsroot structure after nilfs2 detaches its writer in nilfsdetachlogwriter. However, since...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: nilfs2: Fix for a use-after-free of the timer for the log writer thread This patch series, titled “nilfs2: Fix for log writer-related issues”, addresses three issues related to the nilfs2 log writer. These include a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vfs: Do not leak disconnected dentrys during umount When the user calls openbyhandleat on an inode that is not cached, we will create a disconnected dentry for it. If such a dentry is a directory, exportfsdecodefhraw will attempt...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: nilfs2: A potential hang occurred in nilfsdetachlogwriter. Syzbot reported a potential hang during nilfsdetachlogwriter called when nilfs2 unmounts the file system. Analysis revealed that this issue arises because nilfssegctorsyn...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: fixed a hang that occurred during unmount when stopping a space reclaim worker Often, when running the generic/562 test from fstests, a hang may occur during unmount, resulting in a log message like this: Sep 07 11:52:0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: fixed the qgroup reserve leaks in cowfilerange. In the buffered write path, the dirty page owns the qgroup reserve until it creates an orderedextent. Therefore, any errors that occur before the orderedextent is created...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fix for use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, the call to decpagecountsbi, type can set the F2FSWBCPDATA counter to zero, thereby unblocking f2fswaitonallpages in f2fsputsuper during a...

SUSE CVE-2026-97557

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

CVE-2026-97556

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount when cifssbtlink fails cifsoplockbreak takes over the reference that cifsqueueoplockbreak acquired when it queued the work, and drops it with cifsFileInfoput once the break has been processed...

AZL-104543 CVE-2026-97557 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

DEBIAN-CVE-2026-97557

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

CVE-2026-97557

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

UBUNTU-CVE-2026-97557

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

CVE-2026-97557

The Linux kernel contains a vulnerability in the CIFS (SMB) client where cifs_queue_oplock_break() unconditionally increments a file reference count before attempting to queue cifs_oplock_break(). If the work item is already queued, queue_work() returns false, causing the reference count to leak....

CVE-2026-97557 smb: client: avoid leaking refcount in cifs_queue_oplock_break()

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

CVE-2026-97553 xfs: lock the healthmon when inserting unmount event

In the Linux kernel, the following vulnerability has been resolved: xfs: lock the healthmon when inserting unmount event LOLLM complains that xfshealthmonunmount does an unlocked insert of the unmount event into the health monitor's event list. Fix that...