CVE-2023-4130

5.5 mediumEPSS 0.5%

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.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
Published: 2025-08-16
Modified: 2026-08-15
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180
https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6
https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0
https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2

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