buffer overflow

[raashid bhatt]

do buffer overflow happens with global variables

[Nick Keighley]

Re: buffer overflow

On 19 Aug, 14:53, raashid bhatt <raashidbh...@g mail.comwrote:

do buffer overflow happens with global variables

I think you're going to have to expand your question.
Do you mean

1. can overflow occur with global variables?
2. can buffer overflow *only* happen with GVs?
3. do BOs *always* happen with GVs?

int ga [10];
int gi = 11;

int main (void)
{
int a;
int i = 12;

gi = 11;
ga[gi] = 0; /* 1 */
ga[i] = 0 /* 1 */
a[gi] = 0; /* 2 */
a[i] = 0; /* 2 */

i = 0;
gi = 1;
a[i] = 0; /* 3 */
ga[gi] = 0; /* 3 */

return 0;
}

now, why did you ask the question? What answer did you expect?


--
Nick Keighley

[santosh]

Re: buffer overflow

raashid bhatt wrote:

do buffer overflow happens with global variables

Yes, they can.

[Daniel Molina Wegener]

Re: buffer overflow

On Aug 19, 9:53 am, raashid bhatt <raashidbh...@g mail.comwrote:

do buffer overflow happens with global variables

Global, local, static, and any variable...
If you understand what a buffer overflow means, it
can occur on any non insufficient allocated memory
block or wrong handled memory block size, such as
integer overflows...

Regards,
DMW

[Richard W]

Re: buffer overflow

do buffer overflow happens with global variables

Sure