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 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...

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...

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, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Binder: Fixed an issue where asyncfreespace accounting for empty parcels was incorrect. In version 4.13, commit 74310e06be4d “android:binder: Move buffer out of area shared with user space” fixed a issue related to the visibility...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not drop the extentmap for free space inode on a write error. While running the CI for an unrelated change, I encountered the following panic: with generic/648 on btrfsholesspacecache. Assertion failed: blockstart !=...

UBUNTU-CVE-2026-98139

In the Linux kernel, the following vulnerability has been resolved: ntfs: only count successfully cleared runs when freeing clusters ntfsclusterfreefromrlnolock adds a run's length to nrfreed whenever the error bookkeeping condition is false, which includes cases where ntfsbitmapclearrun actually...

CVE-2026-98139 ntfs: only count successfully cleared runs when freeing clusters

In the Linux kernel, the following vulnerability has been resolved: ntfs: only count successfully cleared runs when freeing clusters ntfsclusterfreefromrlnolock adds a run's length to nrfreed whenever the error bookkeeping condition is false, which includes cases where ntfsbitmapclearrun actually...

CVE-2026-98139

A vulnerability exists in the Linux kernel's NTFS (New Technology File System) driver where the ntfs_cluster_free_from_rl_nolock() function incorrectly increments the nr_freed counter even when ntfs_bitmap_clear_run() fails. Specifically, the function inflates vol->free_clusters when the error...

Linux Distros Unpatched Vulnerability : CVE-2026-98139

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ntfs: only count successfully cleared runs when freeing clusters ntfsclusterfreefromrlnolock...

ROS-20260925-73-0195

The vulnerability of the btrfsdeletefreespacetree function in the fs/btrfs/free-space-tree.c file of the Linux kernel operating system is related to the copying of buffers without checking the size of the input data a classic buffer overflow attack. Exploiting this vulnerability could allow an...

ROS-20260923-73-0031

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 in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: removed BUGON functions in addnewfreespace In addnewfreespace, there were BUGON functions designed to handle any failures in adding free space to the in-memory free space cache. Such failures are mostly due to ENOMEM,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a race condition when deleting the free space root from the “dirty cow roots” list. When deleting the free space tree, we are deleting the free space root from the list fsinfo-dirtycowonlyroots, without locking it...

btrfs: reject free space cache with more entries than pages

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CVE-2026-64567

A flaw was found in btrfs, a file system in the Linux kernel. This vulnerability occurs because the system does not properly validate the number of entries in the free space cache header when loading it. A local attacker with the ability to modify the file system metadata could craft a malicious...

SUSE CVE-2026-64567

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

AZL-94482 CVE-2026-64567 affecting package kernel for versions less than 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

CVE-2026-64567

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...