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🛡️ CVE-2022-50859 — kernel

⚪ Unknown ✅ No Known Exploit NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message

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.

Affected software

CVE-2022-50859 is recorded against 2 packages.

  • kernel (from 5.20.0 up to 6.0.3)
  • unknown

Timeline and source

Published on 30 December 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2022-50859 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-30
Updated 2026-08-20
Modified 2026-08-12
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 5.20.0 6.0.3
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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