CVE-2026-97416

A flaw was found in the Linux kernel's Btrfs file system. An attacker could exploit this vulnerability by mounting a corrupted file system image and initiating a balance operation. Due to a missing validation check when querying block group metadata, the kernel triggers a null pointer dereference...

DEBIAN-CVE-2026-98081

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: finish active block group cleanup if callzonefinish fails dozonefinish clears BLOCKGROUPFLAGZONEISACTIVE before finishing the zones. If callzonefinish then fails it returned early, leaving the now inactive block gro...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed ext4mbmarkbb with flexbg and fastcommit. In the case of the flexbg feature which is enabled by default, extents for any given inode may span across blocks from two different block groups. ext4mbmarkbb only reads the...

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: ext4: Fix for corruption during online resizing We observed corruption during online resizing of a file system that is larger than 16 TiB and has a 4k block size. When there are more than 2^32 blocks, resizeinode is turned off by...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Avoid allocating blocks from a corrupted group in ext4mbfindbygoal. The issue is as follows: … EXT4-fs mmcblk0p1: Delayed block allocation failed for inode 206 at logical offset 0, with a maximum of 1 block, and an error...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed a hang that occurred during unmount when the block group reclaim task was running. When starting an unmount, at closectree, if the reclaim task is running and is in the middle of a data block group relocation, a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed the issue where a new block group that becomes unused after creation could lead to a use-after-free condition. If a task creates a new block group and that block group becomes unused before it is fully created, durin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree triggers a NULL pointer dereference: - BUG: Kernel NULL pointer dereference, address:...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100188)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100188 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix corruption during on-line resize We observed a corruption during on-line resize of a fi...

CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

AZL-96371 CVE-2026-74571 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

UBUNTU-CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

CVE-2026-74571

CVE-2026-74571 affects the Linux kernel/btrfs. The issue occurs when mounting with rescue=ibadroots on a corrupted block group tree, leading to a NULL pointer dereference in btrfs_update_global_block_rsv. The root cause is that btrfs_read_roots() may leave a root pointer NULL while its on-disk fe...

CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

CVE-2026-72164

In the Linux kernel, the following vulnerability has been resolved: ocfs2: avoid moving extents to occupied clusters For non-auto OCFS2IOCMOVEEXT operations, userspace supplies a physical megoal. ocfs2moveextent initializes newphyscpos from that goal and expects ocfs2probeallocgroup to replace it...

PT-2026-73023

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the btrfs module when mounting with the rescue=ibadroots option after the block group tree root or the raid stripe tree root has been corrupted. This...

CVE-2026-68450

A flaw was found in the Linux kernel's btrfs filesystem. When the addrelocroot function attempts to insert a duplicate mapping node into the relocroottree, the newly allocated node is not properly freed. This oversight can lead to a memory leak, potentially causing resource exhaustion and a Denia...

The vulnerability of the check_removing_space_info() function in the fs/btrfs/block-group.c module of the Btrfs file system in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the checkremovingspaceinfo function in the fs/btrfs/block-group.c file of the Btrfs file system in the Linux operating system is related to improper memory release „memory leak“. Exploiting this vulnerability may allow a remote attacker to cause service interruptions...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fix for corruption in the blockgrouptree dirtylist. When the incompat flag EXTENTTREEV2 is set, we unconditionally add the block group tree to the switchcommits list before calling switchcommitroots, just like we do for...