Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed an assertion issue when building the free space tree. When building the free space tree with the block group tree feature enabled, an assertion failure may occur like this: BTRFS info device loop0 state M: rebuilding...

CVE-2026-98244

A flaw was found in the Linux kernel's Btrfs file system. When an error occurs while rebuilding the free space tree, the kernel fails to properly reset an internal state flag on failure paths. A local user could exploit this condition during filesystem operations, leaving the flag set on an activ...

CVE-2026-98244

In the Linux kernel, the following vulnerability has been resolved: btrfs: clear free space tree creation state on rebuild failure btrfsrebuildfreespacetree sets BTRFSFSCREATINGFREESPACETREE before rebuilding the free space tree. Several error paths return without clearing this flag. The...

CVE-2026-98244 btrfs: clear free space tree creation state on rebuild failure

In the Linux kernel, the following vulnerability has been resolved: btrfs: clear free space tree creation state on rebuild failure btrfsrebuildfreespacetree sets BTRFSFSCREATINGFREESPACETREE before rebuilding the free space tree. Several error paths return without clearing this flag. The...

PT-2026-106573

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.10-1.1 Description An issue exists in the btrfs filesystem where the btrfs rebuild free space tree function sets the BTRFS FS CREATING FREE SPACE TREE flag before rebuilding the free space tree. Certain error...

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. ...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007613)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007613 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix assertion when building free space tree When building the free space tree with the blo...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-007346)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007346 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when...

Linux kernel Btrfs Heap Buffer Overflow DoS

The vulnerability of the populatefreespacetree function in the fs/btrfs/free-space-tree.c file of the Linux kernel operating system is related to an uncontrolled, exploitable condition. Exploiting this vulnerability could allow an attacker to cause a service failure...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not assert that we found a block group item when creating a free space tree. Currently, when building a free space tree using populatefreespacetree, if the block group tree feature is not enabled, we always expect to fi...

btrfs: do not assert we found block group item when creating free space tree

...

SUSE CVE-2025-40100

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

EUVD-2025-36978

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

AZL-69415 CVE-2025-40100 affecting package kernel for versions less than 6.6.117.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

CVE-2025-40100

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

UBUNTU-CVE-2025-40100

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

CVE-2025-40100

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

CVE-2025-40100

The CVE-2025-40100 issue is in the Linux kernel, specifically the Btrfs code path used when building the free space tree. The problem was an assertion in populate_free_space_tree() that assumed a block group item always exists in the extent tree when not using the block group tree feature. This c...

CVE-2025-40100 btrfs: do not assert we found block group item when creating free space tree

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not using the block group tree feature, we always expect to find block...

Linux Distros Unpatched Vulnerability : CVE-2025-40100

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - btrfs: do not assert we found block group item when creating free space tree Currently, when building a free space tree at populatefreespacetree, if we are not...