CVE-2025-39888

HIGH

Linux kernel - Memory Corruption

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: fuse: Block access to folio overlimit syz reported a slab-out-of-bounds Write in fuse_dev_do_write. When the number of bytes to be retrieved is truncated to the upper limit by fc->max_pages and there is an offset, the oob is triggered. Add a loop termination condition to prevent overruns.

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 4.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-787
Status published

Affected Products (7)

linux/linux_kernel < 6.16.8
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/Kernel < 6.16.8linux

Timeline

Published Sep 23, 2025
Tracked Since Feb 18, 2026