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CVE-2023-4130

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CVE-2023-4130

Published: Aug 16, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.

VendorProductVersions

Linux

Linux

affected
0626e6641f6b467447c81dd7678a69c66f7746cf - < aeb974907642be095e38ecb1a400ca583958b2b0
affected
0626e6641f6b467447c81dd7678a69c66f7746cf - < f339d76a3a972601d0738b881b099d49ebbdc3a2
affected
0626e6641f6b467447c81dd7678a69c66f7746cf - < 4bf629262f9118ee91b1c3a518ebf2b3bcb22180
affected
0626e6641f6b467447c81dd7678a69c66f7746cf - < 79ed288cef201f1f212dfb934bcaac75572fb8f6

Linux

Linux

affected
5.15
unaffected
0 - < 5.15
unaffected
5.15.127 - <= 5.15.*
unaffected
6.1.46 - <= 6.1.*
unaffected
6.4.11 - <= 6.4.*

+1 more versions

References

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