EUVD-2026-38916

In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2logflush can be called when sdp-sdjdesc has already been deallocated and sdp-sdjdesc is NULL. Commit 35264909e9...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed the inode leak in btrfsiget. BUG There is a bug report that a syzbot reproducer can lead to the following busy inode at unmount time: - BTRFS info device loop1: Last unmount of the filesystem...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Rejects new transactions if the file system is fully read-only. BUG There is a bug report where a heavily fuzzed file system is mounted with all rescue mount options. This leads to the following warnings during unmount:...

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 in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid journaling SB updates in case the journal destroys itself. Currently, we always encounter a BUGON issue when attempting to start a transaction on a journal marked with JBD2UNMOUNT, since this should never happen...

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 the block group reclaim task was running. When starting an unmount, at closectree, if the reclaim task is running and involves the relocation of a data block group, a...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Skipping the “reserved bytes” warning after unmounting after a log cleanup failure. After the recent changes made by commit c2e39305299f01 “btrfs: clearing the extent buffer when writing fails” and its follow-up fix,...

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 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bcachefs: kvfree bchfs::snapshots in bch2fssnapshotsexit bchfs::snapshots is allocated by kvzalloc in snapshott Mut. It should be freed by kvfree, not kfree. This could lead to umount triggering an error: 406.829178 BUG: Unabl...

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, Linux-5.15, Linux-5.10

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 – 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 - уязвимость в linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fixed the potential issue of using “glock” after a file system unmount. When a DLM lockspace is released and there are still locks in that lockspace, the DLM will automatically unlock those locks. Commit fb6791d100d1b...

Astra Linux - уязвимость в u-boot

A issue was discovered in Das U-Boot during the period from 2019.07. There is a stack-based buffer overflow in the nfshandler reply helper function: nfsumountallreply...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021598)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021598 advisory. In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix potential glock use-after-free on unmount When a DLM lockspace is released and there ar...

CVE-2026-43065

A flaw was found in the ext4 filesystem within the Linux kernel. When an ext4 filesystem is initially mounted with the 'discard' option and then remounted with 'nodiscard', pending discard operations may not be properly cancelled or flushed. This can lead to unhandled resource operations if the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfs/blocklayout: Do not attempt unregistration for invalid block devices Since the commit d869da91cccb “nfs/blocklayout: Fix premature PR key unregistration”, unmounting a pNFS SCSI-layout-enabled NFS may cause a NULL blockdevice...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fixed a NULL pointer dereferencing in gfs2logFlush. In gfs2jindexfree, sdp-sdjdesc was set to NULL under the log flush lock to prevent dereferencing of sdp-sdjdesc during gfs2logFlush. In gfs2logFlush, it was checked whethe...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: cifs: fixed potential OOPs in cifsoplockbreak With deferred close, there may be situations where closes occur simultaneously with lease breaks. Additionally, when checking whether to send the lease response, oplockresponse can...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ceph: Messages from MDS are dropped when unmounting When unmounting, all dirty buffers will be flushed. After the last osd request is completed, the last reference to icount will be released. Then, the dirty buffers will be flush...