PT-2025-36285 · Linux+5 · Linux Kernel+5
Published
2025-01-01
·
Updated
2026-04-20
·
CVE-2025-39691
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.16.0-862.14.0.6
Description
A use-after-free issue exists in the Linux kernel's fs/buffer subsystem when calling the
bh read() helper function. The issue occurs during NTFS3 filesystem mounting and involves a stack-out-of-bounds read in the end buffer read sync() function after unlocking a buffer head. Specifically, the stack variable map bh passed to ntfs get block vbo() may be reclaimed before being used, leading to a potential stack overrun when put bh() is called.Recommendations
Update to Linux kernel version 6.16.0-862.14.0.6 or later.
Exploit
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu