CVE-2022-50859

Linux Kernel 5.0.0-6.0.3 Information Disclosure via VALIDATE_NEGOTIATE_INFO

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message Commit d5c7076b772a ("smb3: add smb3.1.1 to default dialect list") extend the dialects from 3 to 4, but forget to decrease the extended length when specific the dialect, then the message length is larger than expected. This maybe leak some info through network because not initialize the message body. After apply this patch, the VALIDATE_NEGOTIATE_INFO message length is reduced from 28 bytes to 26 bytes.

Scores

EPSS 0.0021
EPSS Percentile 11.8%

Details

Status published
Products (19)
linux/Kernel 5.0.0 - 5.4.220linux
linux/Kernel 5.11.0 - 5.15.75linux
linux/Kernel 5.16.0 - 5.19.17linux
linux/Kernel 5.20.0 - 6.0.3linux
linux/Kernel 5.5.0 - 5.10.150linux
Linux/Linux < 5.0
Linux/Linux 5.0
Linux/Linux 5.10.150 - 5.10.*
Linux/Linux 5.15.75 - 5.15.*
Linux/Linux 5.19.17 - 5.19.*
... and 9 more
Published Dec 30, 2025
Tracked Since Feb 18, 2026