CVE-2022-50859

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.

PUBLISHED Reserved 2025-12-30 | Published 2025-12-30 | Updated 2025-12-30 | Assigner Linux

Product status

References

git.kernel.org/...c/d0050ec3ebbcb3451df9a65b8460be9b9e02e80c

git.kernel.org/...c/9312e04b6c6bc46354ecd0cc82052a2b3df0b529

git.kernel.org/...c/60480291c1fcafad8425d93f771b5bcc2bd398b4

git.kernel.org/...c/943eb0ede74ecd609fdfd3f0b83e0d237613e526

git.kernel.org/...c/fada9b8c95c77bb46b89e18117405bc90fce9f74

git.kernel.org/...c/e98ecc6e94f4e6d21c06660b0f336df02836694f

cve.org (CVE-2022-50859)

nvd.nist.gov (CVE-2022-50859)

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