Hi,
I am starting to write linux kernel mode code. I am on Ubuntu 20.04. I have written the following code
The line DynPage[i]=0; //CRASH causes a crash. Can you please guide on the reason for the crash?
Thanks a lot in advance,
Lloyd
#pragma GCC push_options
#pragma GCC optimize("O0")
void ClearMem(void)
{
unsigned int* DynPage=NULL;
unsigned int i=0;
DynPage=kmalloc(1024*16,GFP_KERNEL);
if(DynPage!=NULL)
{
DynPage[i]=0; //CRASH
}
kfree(DynPage);
DynPage=NULL;
return;
}
#pragma GCC pop_options
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