Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a race condition in readextentbufferpages There are reports from tree-checker that detect corrupted nodes, without any obvious pattern—possibly due to an overwrite in memory. After some debugging, it turned out that...

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 cause the following issue: A busy inode occurs at the time of unmount: - 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: fixed the re-dirty process of tree-log nodes There is a report of a transaction abort with the following script: !/bin/sh for d in sda sdb; do mkfs.btrfs -d single -m single -f /dev/$d done mount /dev/sda /mnt/test moun...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: calling btrfsremovefreespacecachelocked on cache load failure Now that lockdep is kept enabled throughout our CI processes, I noticed the following stack trace in generic/475: ------------ Cut here --- WARNING: CPU: 1 PID:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: When performing a btrfs mount, the block device is not set correctly. The user sets the block size of the block device to 0x4000 by executing the BLKBSZSET command. Since changing the block size also affects the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: The release path was called before initializing the extent tree in btrfsreadlocked inode. In btrfsreadlocked inode, we call btrfsinitfileextenttree while holding a lock on a read-locked leaf of the subvolume tree...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an issue where rebuilding the free space tree using multiple transactions might fail. When rebuilding the free space tree, and while modifying the free space tree, we may need to allocate a new metadata block group. ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Lock the inode in shared mode before starting fiemap. Currently, fiemap does not lock the inode itself VFS lock; instead, it only locks a file range within the inode’s io tree. However, this can lead to a deadlock if there...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a situation where a double free of the qgroup record occurred after attempting to add a delayed ref head failed. In the previous code, it was possible for a double kfree scenario to occur when calling...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Zoned: Skipping splitting and logical rewriting during pre-alloc write operations. During relocation, there is a possibility that at the time of btrfsrelocclonecsums, there is no checksum for the corresponding region. I...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: zlib: fix the folio leak on S390 hardware acceleration BUG After committing aa60fe12b4f4 “btrfs: zlib: refactor S390x HW acceleration buffer preparation”, we no longer release the folio of the page cache of the folio...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: scrub: Properly handles RST lookup errors. BUG When running btrfs/060 with the forced RST feature enabled, the following ASSERT within scrubreadendio might crash: ASSERTsectornr nrsectors; Previously, a tree dump from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Zoneed: Do not flag “ZEROOUT” on non-dirty extent buffers. Btrfs clears the content of an extent buffer marked as EXTENTBUFFERZONEDZEROOUT before the bio submission. This mechanism is introduced to prevent a write hole ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a NULL pointer dereference issue in doabortlogreplay. Coverity reported a NULL pointer dereference issue CID 1666756 in doabortlogreplay. When btrfsallocpath fails in replayonebuffer, wc-subvolpath becomes NULL...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed an issue where an incorrect return value was returned after changing a leaf in lookupextentdataref. After the commit 1618aa3c2e01 “btrfs: simplified return variables in lookupextentdataref“”, the err and ret variable...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021575)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021575 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: check folio mapping after unlock in relocateonefolio When we call btrfsreadfolio to bring ...

Linux Distros Unpatched Vulnerability : CVE-2026-43358

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - btrfs: add missing RCU unlock in error path in tryreleasesubpageextentbuffer Call rcureadlock before exiting the loop in tryreleasesubpageextentbuffer because...

Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel vulnerabilities (USN-8274-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8274-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021638)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021638 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free when COWing tree bock and tracing is enabled When a COWing a tree block...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021580)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021580 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: don't BUGON on ENOMEM from btrfslookupextentinfo in walkdownproc We handle errors here...