kiper220/mimalloc
1
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2025-08-25 16:54:47 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

comments and improved error message on buffer overflow

Browse source
This commit is contained in:
daan 2020-04-06 13:30:17 -07:00
parent 19cae48556
commit a38abae0a1
4 changed files with 28 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

5
src/alloc.c
View file

@ -11,6 +11,7 @@ terms of the MIT license. A copy of the license can be found in the file
#include <string.h> // memset, memcpy, strlen
#include <stdlib.h> // malloc, exit
#include <stdio.h> // snprintf
#include <wchar.h> // wcslen
#define MI_IN_ALLOC_C
@ -240,7 +241,9 @@ static void mi_check_padding(const mi_page_t* page, const mi_block_t* block) {
size_t size;
size_t wrong;
if (!mi_verify_padding(page,block,&size,&wrong)) {
_mi_page_block_error_message(EFAULT, page, block, "buffer overflow in heap block (write after %zu bytes)" );
char msg[80];
snprintf(msg, 79, "buffer overflow in heap block (write after %zu bytes)", (wrong > 0 ? wrong - 1 : wrong));
_mi_page_block_error_message(EFAULT, page, block, msg );
}
}