Astra Linux – vulnerability in linux-5.10, linux-6.1, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: handle chunk tree lookup error in btrfsrelocatesyschunks The unhandled case in btrfsrelocatesyschunks loop is a corruption, as it could be caused only by two impossible conditions: - first, the search key is set up to look...

Astra Linux – vulnerability in linux, linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not free qgroup space unless specified Boris noticed during his simple quotas testing that a leak occurred due to Sweet Tea’s change in subvol create functionality, which prevented a transaction commit. This was merely ...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix uninitialized pointer free on readalloconename error The function readalloconename fails to initialize the name field of the passed fscryptstr struct if kmalloc cannot allocate the corresponding buffer. As a result, it...

Astra Linux – vulnerability in linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix racy bitfield write in btrfsclearspaceinfofull Regarding memory barrier ordering guarantees as stated in the memory-barriers.txt document: These guarantees do not apply to bitfields, as compilers often generate code to...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fix the race condition between the quota enable operation and the quota rescan ioctl call. When enabling quotas, in the btrfsquotaenable function, after committing the transaction, we update fsinfo-quotaroot to point to th...

CVE-2026-89645

A flaw was found in the btrfs file system in the Linux kernel. During relocation recovery, if an error occurs, such as a memory allocation failure, the system may not properly drop references to relocation roots. This oversight can lead to resource exhaustion, potentially allowing a local attacke...

Btrfs Heap Buffer Overflow DoS

The vulnerability of the btrfsrundelayeditems function in the fs/btrfs/delayed-inode.c file of the Btrfs file system in the Linux operating system is related to the occurrence of mutual locking. Exploiting this vulnerability could allow an attacker to cause a service failure...

btrfs fs/btrfs/tree-log.c Heap Buffer Overflow DoS

The vulnerability of the doabortlogreplay function in the fs/btrfs/tree-log.c file of the btrfs file system in the Linux operating system is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to trigger a service failure...

Btrfs Kernel Heap Buffer Overflow DoS

The vulnerability of the logconflictinodes function in the fs/btrfs/tree-log.c file of the Btrfs file system in the Linux operating system is related to synchronization errors. Exploiting this vulnerability can allow an attacker to cause service failures...

Btrfs File System Heap Buffer Overflow DoS

The vulnerability in the lookupextentdataref function within the fs/btrfs/extent-tree.c file of the Btrfs filesystem in the Linux kernel allows an attacker to manipulate the confidentiality, integrity, and availability of protected information...

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

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed the BUGON condition in btrfscancelbalance. Pausing and canceling balance can race to interrupt balance, leading to a BUGON panic in btrfscancelbalance. The BUGON condition in btrfs CancelBalance does not take this ra...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed incorrect splitting in btrfsdropextentmaprange. In production, we encountered various WARNON messages in the extentmap code, specifically in btrfsdropextentmaprange, when we had to call addextentmapping for our secon...

EUVD-2026-55608

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix root leak if its reloc root is unexpected in mergerelocroots If we have an unexpected relocroot for our root, we jump to the out label but never drop the reference we obtained for root, resulting in a leak. Add a missi...

CVE-2026-64593

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not trim a device which is not writeable BUG There is a bug report that btrfs/242 can randomly fail with the following NULL pointer dereference: run fstests btrfs/242 at 2026-06-01 10:25:08 BTRFS: device fsid...

PT-2026-68426

Name of the Vulnerable Software and Affected Versions Linux kernel version 7.0.10-2-default Description A NULL pointer dereference occurs in the Btrfs file system when attempting to trim a device that is not writeable. The issue arises during a specific window where a missing device is re-scanned...

PT-2026-68068

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the btrfs file system when loading a v1 free space cache. The function load free space cache trusts the num entries and num bitmaps values from the on-disk btrfs free...

USN-8604-1 linux-azure-6.17 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: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Drivers...

USN-8604-1: Linux kernel (Azure) 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: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Drivers...

[SECURITY] Fedora 44 Update: btrbk-0.32.7-1.fc44

Backup tool for btrfs sub-volumes, using a configuration file, allows creation of backups from multiple sources to multiple destinations, with ssh and flexible retention policy support hourly, daily, weekly, monthly...

btrfs Heap Buffer Overflow DoS

The vulnerability of the btrfsqgroupdestroyextentrecords function in the fs/btrfs/qgroup.c file of the btrfs file system in the Linux operating system involves the disclosure of confidential information. Exploiting this vulnerability could allow an attacker to cause a service failure...