PT-2026-98743

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the btrfs filesystem where forcing reloc root creation during the qgroup account snapshot function can lead to a kernel warning and cause the filesystem to flip to...

AZL-102108 CVE-2026-90259 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroupfreereserveddata In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "roundupstart + len,...

CVE-2026-90259

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroupfreereserveddata In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "roundupstart + len,...

DEBIAN-CVE-2026-90259

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroupfreereserveddata In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "roundupstart + len,...

CVE-2026-90259 btrfs: qgroup: fix a wrong length calculation in qgroup_free_reserved_data()

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroupfreereserveddata In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "roundupstart + len,...

CVE-2026-90259 btrfs: qgroup: fix a wrong length calculation in qgroup_free_reserved_data()

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroupfreereserveddata In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "roundupstart + len,...

CVE-2026-90259

CVE-2026-90259 affects the btrfs qgroup subsystem of the Linux kernel . The bug is in qgroup_free_reserved_data(), where the length calculation incorrectly uses round_up(start + len, sectorsize)—yielding the rounded-up end position rather than the rounded-up length . This produces an erroneously ...

EUVD-2026-81852

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroupfreereserveddata In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "roundupstart + len,...

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

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 – Vulnerability in Linux 6.1

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...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: Fixed the issue where quota root leaks after quota disabling fails. If, during quota disabling, we fail to clean the quota tree or delete the root node from the root tree, we jump to the ‘out’ label without ever...

Astra Linux – Vulnerability in Linux 5.10, Linux

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 – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not free the data reservation when performing a fallback operation due to -ENOSPC. If we fail to create an inline extent due to -ENOSPC, we will attempt to proceed with the normal COW COw path, reserve an extent, create...

Astra Linux – Vulnerability in Linux 5.10, Linux

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...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix race between quota disable and quota rescan ioctl There is a race between a task that disables quotas and another task that runs the rescan ioctl. This can lead to a use-after-free of qgroup records from the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

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...