CVE-2026-90259

A flaw was found in btrfs qgroup. An incorrect length calculation in the qgroupfreereserveddata function can lead to a much larger length being used than intended. This error in calculation may result in improper data handling, potentially causing system instability or data corruption. Mitigation...

SUSE 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,...

Linux Distros Unpatched Vulnerability : CVE-2026-90259

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

AZL-102108 CVE-2026-90259 affecting package kernel 6.6.159.1-1

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,...

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

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,...

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,...

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 ...

Linux Kernel Security Vulnerabilities

The Linux kernel version 4.13 contains a security vulnerability. This vulnerability stems from an error in the calculation of length in the qgroupfreereserveddata function of btrfs’ qgroup. The function incorrectly uses the end position with rounding upwards instead of the actual length. As a...

CVE-2026-90259: Undefined Security Weakness

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,...