Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed leaks in the ulist structure during error paths in the qgroup self tests. In the testnosharedqgroup and testmultiplerefs qgroup self tests, if we fail to add the tree reference, remove the extent item, or remove t...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098773)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098773 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: do not free data reservation in fallback from inline due to -ENOSPC If we fail to create a...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098821)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098821 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: reserve enough transaction items for qgroup ioctls Currently our qgroup ioctls don't...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098706)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098706 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix race between quota disable and quota rescan ioctl There's a race between a ta...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098878)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098878 advisory. 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 alloca...

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

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Do not free the qgroup space unless specified. Boris noticed during his simple quota testing that there was a leak caused by Sweet Tea’s change to the subvol create function, which would stop a transaction commit. This...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed the issue where the qgroup reserve overflows the qgroup limit. We use extentchangeset-byteschanged in qgroupreservedata to record how many bytes are set for the EXTENTQGROUPRESERVED state. Currently, byteschanged is...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: Fixed a bug where sleep was performed from an invalid context in btrfsqgroupinherit. Syzkaller reported the bug as follows: Bug: A sleep function is called from an invalid context at include/linux/sched/mm.h:274 Ca...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a deadlock between the quota disable process and the qgroup rescan worker process. The quota disable ioctl initiates a transaction before waiting for the qgroup rescan worker to complete. However, this wait can be...

SUSE CVE-2026-74722

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

CVE-2026-74722

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

AZL-97289 CVE-2026-74722 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

CVE-2026-74722 btrfs: fix memory leak in btrfs_do_encoded_write()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

CVE-2026-74722

This is a memory leak in the btrfs filesystem of the Linux kernel , specifically in the btrfs_do_encoded_write() function. The leak occurs because an extent changeset (allocated via qgroup_reserve_data()) is not freed before the function returns. The bug was discovered through local fuzzing of ke...

CVE-2026-74722 btrfs: fix memory leak in btrfs_do_encoded_write()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

EUVD-2026-64409

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in btrfsdoencodedwrite Local fuzzing of 6.12.94 has found the following memory leak: Unreferenced object 0xffff888018050a80 size 64: comm "syz.0.17", pid 10297, jiffies 4294953601 hex dump first 32 bytes: 0...

PT-2026-79727

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.12.94 Description A memory leak exists in the Btrfs file system. The issue occurs within the btrfs do encoded write function, where an extent changeset is not properly freed before the function returns. This was identifi...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

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

OESA-2026-2674 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix race between quota disable and quota rescan ioctl There's a race between a task disabling quotas and another running the rescan ioctl that can...

CVE-2026-43338

A flaw was found in the Linux kernel's Btrfs filesystem. The qgroup ioctls input/output control system calls for quota groups do not reserve sufficient transaction space. A local user can exploit this by performing specific qgroup operations, which can lead to a transaction abort and result in a...