CVE-2023-4130 — ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
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 buffe…
Published: 2025-08-16 · CVSS: 8.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7