Meaning of Overflow from wikipedia- Look up overflow in Wiktionary, the free dictionary. Overflow may refer to: Integer overflow, a condition that occurs when an integer calculation produces...- Stack Overflow is a question-and-answer website for computer programmers. It is the flagship site of...
()function to copy the packet data to the buffer. The problem with this code is that the length field is a signed integer, meaning it can be negative or positive. Therefore, providing a negative length value in the packet will pass the check in theifstatement. However, when the length ...
Let us analyze overflow in unsigned integer addition. Consider 2 variables a and b of a data type with size n and range R. Let + be actual mathematical addition and a$b be the addition that the computer does. If a+b<=R-1, a$b=a+b As a and b are unsigned, a$b is more or...
create simple representations by counting the frequency of words in a post and they fail to capture important linguistic information, such as meaning and context (Wang et al.,2018b; Saini & Tripathi,2018; Liu et al.,2018; Singh et al.,2020). BoW and TF-IDF do not consider the syntactic...
It’s important to realize that a pipeline is just like any pipe outside a computer. Whatever its narrowest constraint is, that’s where it’ll bottleneck. Except this is a dynamic pipe, more like a hose that can expand or bend or kink. The bottlenecks are not 100% constant. In pract...
The research on buffer overflow still has actual meaning. Stack overflow is a basic form of buffer overflow and it is more difficult to be detected and protected comparing to heap overflow. In this article, different dynamic techniques about the detection of stack overflow have been described. ...
1. A method of protecting a function stack frame on a computer call stack, the function stack frame corresponding to a function, the method comprising: modifying a prologue of the function wherein, when executed, the prologue performs the steps of: creating in the function stack frame a start...
The CPU can operate on an aligned word of memory atomically, meaning that no other instruction can interrupt that operation. This is critical to the correct operation of many lock-free data structures and other concurrency paradigms. CPU对于内存中已经对齐了的字的操作,是原子的,也就是说没有其他的...
I manage to do this with a python script, I run the program in gdb and specify 500 A's to be printed, this seems to work as I then inspect the registers and the instruction pointer is 0x41414141 meaning it's overwritten it with 'A's ...
In computer systems, there is often a need to manage memory. In particular, when objects are no longer used, it is useful to recover memory that was allocated for use with the objects. Some systems in use today use explicit memory management whereby the systems use a command to allocate me...