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CVE-2022-50859

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CVE-2022-50859

Published: Dec 30, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
d5c7076b772ad7dcdb92303397b36aee8fa0d25d - < d0050ec3ebbcb3451df9a65b8460be9b9e02e80c
affected
d5c7076b772ad7dcdb92303397b36aee8fa0d25d - < 9312e04b6c6bc46354ecd0cc82052a2b3df0b529
affected
d5c7076b772ad7dcdb92303397b36aee8fa0d25d - < 60480291c1fcafad8425d93f771b5bcc2bd398b4
affected
d5c7076b772ad7dcdb92303397b36aee8fa0d25d - < 943eb0ede74ecd609fdfd3f0b83e0d237613e526
affected
d5c7076b772ad7dcdb92303397b36aee8fa0d25d - < fada9b8c95c77bb46b89e18117405bc90fce9f74

+1 more versions

Linux

Linux

affected
5.0
unaffected
0 - < 5.0
unaffected
5.4.220 - <= 5.4.*
unaffected
5.10.150 - <= 5.10.*
unaffected
5.15.75 - <= 5.15.*

+3 more versions

References

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