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SMB2_FLAGS_SIGNED is controlled by the incoming request and only indicates that a signature accompanies that request. Do not use it to decide whether a signing-required session must authenticate the request. Reject an unsigned plaintext request before dispatch when the session requires signing. Continue to validate signatures on signed requests, including when signing is optional. Encrypted requests have already been authenticated during decryption. An OPLOCK_BREAK acknowledgment is a session request and is subject to the same signing rule, so do not exclude it from signed-request detection. Reported-by: Charles Vosburgh <trilobyte777@gmail.com> Tested-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
694 lines
16 KiB
694 lines
16 KiB