CVE-2023-4515 – “KSMBD SMB2 Command Size Validation Vulnerability”

CVE ID : CVE-2023-4515

Published : Aug. 16, 2025, 2:15 p.m. | 1 hour, 46 minutes ago

Description : In the Linux kernel, the following vulnerability has been resolved:

ksmbd: validate command request size

In commit 2b9b8f3b68ed (“ksmbd: validate command payload size”), except
for SMB2_OPLOCK_BREAK_HE command, the request size of other commands
is not checked, it’s not expected. Fix it by add check for request
size of other commands.

Severity: 0.0 | NA

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