CVE-2025-39800

MEDIUM

Linux Kernel - Denial of Service via Unexpected Extent Buffer Generation in btrfs_copy_root

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort transaction on unexpected eb generation at btrfs_copy_root() If we find an unexpected generation for the extent buffer we are cloning at btrfs_copy_root(), we just WARN_ON() and don't error out and abort the transaction, meaning we allow to persist metadata with an unexpected generation. Instead of warning only, abort the transaction and return -EUCLEAN.

References (7)

Core 7

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 5.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (18)
debian/debian_linux 11.0
linux/Kernel 2.6.29 - 6.1.149linux
linux/Kernel 6.13.0 - 6.16.4linux
linux/Kernel 6.2.0 - 6.6.103linux
linux/Kernel 6.7.0 - 6.12.44linux
Linux/Linux < 2.6.29
Linux/Linux 2.6.29
Linux/Linux 6.1.149 - 6.1.*
Linux/Linux 6.12.44 - 6.12.*
Linux/Linux 6.16.4 - 6.16.*
... and 8 more
Published Sep 15, 2025
Tracked Since Feb 18, 2026