CVE-2025-39943

HIGH

Linux kernel - Out-of-Bounds

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer If data_offset and data_length of smb_direct_data_transfer struct are invalid, out of bounds issue could happen. This patch validate data_offset and data_length field in recv_done.

References (6)

[Patch] https://git.kernel.org/stable/c/5282491fc49d5614ac6ddcd012e5743eecb6a67c

[Patch] https://git.kernel.org/stable/c/529b121b00a6ee3c88fb3c01b443b2b81f686d48

[Patch] https://git.kernel.org/stable/c/773fddf976d282ef059c36c575ddb81567acd6bc

[Patch] https://git.kernel.org/stable/c/8be498fcbd5b07272f560b45981d4b9e5a2ad885

[Patch] https://git.kernel.org/stable/c/bdaab5c6538e250a9654127e688ecbbeb6f771d5

[Patch] https://git.kernel.org/stable/c/eb0378dde086363046ed3d7db7f126fc3f76fd70

Scores

CVSS v3 7.1

EPSS 0.0001

EPSS Percentile 1.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Classification

CWE

CWE-125

Status draft

Affected Products (14)

linux/linux_kernel < 5.15.194

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/Kernel < 5.15.194linux

linux/Kernel < 6.1.154linux

linux/Kernel < 6.6.108linux

linux/Kernel < 6.12.49linux

linux/Kernel < 6.16.9linux

Timeline

Published Oct 04, 2025

Tracked Since Feb 18, 2026