USN-8143-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - GPU drivers; - BTRFS file system; - GFS2 file system; - UDF file system; - NFC subsystem; -...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-8112-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8112-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

USN-8107-1 linux-aws-fips vulnerabilities

Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module LSM. An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information kernel memory, local...

CVE-2025-71268

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reservation leak in some error paths when inserting inline extent If we fail to allocate a path or join a transaction, we return from cowfilerangeinline without freeing the reserved qgroup data, resulting in a leak. Fi...

SUSE-SU-2026:20667-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-53817: crypto: lib/mpi - avoid null pointer deref in mpicmpui bsc1254992. - CVE-2025-37861: scsi: mpi3mr: Synchronous access b/w reset and tm...

USN-8070-2 linux-aws, linux-lts-xenial vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - MMC subsystem; - Network drivers; - USB Device Class drivers; - BTRFS file system; - File syste...

USN-8070-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - MMC subsystem; - Network drivers; - USB Device Class drivers; - BTRFS file system; - File syste...

USN-8033-7 linux-intel-iotg-5.15, linux-xilinx-zynqmp vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Nios II architecture; - Sun Sparc architecture; - User-Mode Linux UML; - x86 architecture; - Block layer subsystem;...

USN-8033-5: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Nios II architecture; - Sun Sparc architecture; - User-Mode Linux UML; - x86 architecture; - Block layer subsystem;...

CVE-2026-23181

In the Linux kernel, the following vulnerability has been resolved: btrfs: sync read disk super and set block size When the user performs 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 the...

AZL-77820 CVE-2026-23157 affecting package kernel 6.6.126.1-1

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...

UBUNTU-CVE-2026-23043

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

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004116)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004116 advisory. In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in btrfsmapblock in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Ensure that no dirty metadata is written back for a file system with errors. BUG During the development of a minor feature make sure that all btrfsbio::endio calls are performed in a task context, I noticed a crash in...

ROS-20260112-7326

A vulnerability in the btrfsloadzoneinfo function in the fs/btrfs/zoned.c module of the Linux kernel btrfs file system is related to the reuse of previously freed memory due to competitive access to a resource race condition. Exploitation of the vulnerability may allow an intruder to affect...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000452)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000452 advisory. In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfsqueuework in...

SUSE CVE-2023-54224

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix lockdep splat and potential deadlock after failure running delayed items When running delayed items we are holding a delayed node's mutex and then we will attempt to modify a subvolume btree to insert/update/delete the...

SUSE CVE-2023-54297

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix memory leak after finding block group with super blocks At excludesuperstripes, if we happen to find a block group that has super blocks mapped to it and we are on a zoned filesystem, we error out as this is not...

EUVD-2023-60388

In the Linux kernel, the following vulnerability has been resolved: btrfs: set page extent mapped after readfolio in relocateonepage One of the CI runs triggered the following panic assertion failed: PagePrivatepage && page-private, in fs/btrfs/subpage.c:229 ------------ cut here ------------...

UBUNTU-CVE-2023-54185

In the Linux kernel, the following vulnerability has been resolved: btrfs: remove BUGON's in addnewfreespace At addnewfreespace we have these BUGON's that are there to deal with any failure to add free space to the in memory free space cache. Such failures are mostly -ENOMEM that should be very...