Use struct_size() to calculate the output buffer length. Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx> --- fs/smb/server/smb2pdu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index 7121266daa02..b45e5b9ad967 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -4887,7 +4887,7 @@ static void get_file_alternate_info(struct ksmbd_work *work, spin_unlock(&dentry->d_lock); file_info->FileNameLength = cpu_to_le32(conv_len); rsp->OutputBufferLength = - cpu_to_le32(sizeof(struct smb2_file_alt_name_info) + conv_len); + cpu_to_le32(struct_size(file_info, FileName, conv_len)); } static int get_file_stream_info(struct ksmbd_work *work, -- 2.46.1