Contributors: 12
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Dave Jones |
98 |
38.28% |
4 |
19.05% |
| Kees Cook |
41 |
16.02% |
4 |
19.05% |
| Baruch Siach |
24 |
9.38% |
1 |
4.76% |
| Linus Torvalds |
23 |
8.98% |
1 |
4.76% |
| Guenter Roeck |
22 |
8.59% |
1 |
4.76% |
| Chris Metcalf |
16 |
6.25% |
1 |
4.76% |
| Paul Gortmaker |
7 |
2.73% |
3 |
14.29% |
| Marco Elver |
7 |
2.73% |
2 |
9.52% |
| Zhen Lei |
6 |
2.34% |
1 |
4.76% |
| Linus Torvalds (pre-git) |
5 |
1.95% |
1 |
4.76% |
| Matthew Wilcox |
5 |
1.95% |
1 |
4.76% |
| Rusty Russell |
2 |
0.78% |
1 |
4.76% |
| Total |
256 |
|
21 |
|
/*
* Copyright 2006, Red Hat, Inc., Dave Jones
* Released under the General Public License (GPL).
*
* This file contains the linked list validation and error reporting for
* LIST_HARDENED and DEBUG_LIST.
*/
#include <linux/export.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/rculist.h>
/*
* Check that the data structures for the list manipulations are reasonably
* valid. Failures here indicate memory corruption (and possibly an exploit
* attempt).
*/
__list_valid_slowpath
bool __list_add_valid_or_report(struct list_head *new, struct list_head *prev,
struct list_head *next)
{
if (CHECK_DATA_CORRUPTION(prev == NULL,
"list_add corruption. prev is NULL.\n") ||
CHECK_DATA_CORRUPTION(next == NULL,
"list_add corruption. next is NULL.\n") ||
CHECK_DATA_CORRUPTION(next->prev != prev,
"list_add corruption. next->prev should be prev (%px), but was %px. (next=%px).\n",
prev, next->prev, next) ||
CHECK_DATA_CORRUPTION(prev->next != next,
"list_add corruption. prev->next should be next (%px), but was %px. (prev=%px).\n",
next, prev->next, prev) ||
CHECK_DATA_CORRUPTION(new == prev || new == next,
"list_add double add: new=%px, prev=%px, next=%px.\n",
new, prev, next))
return false;
return true;
}
EXPORT_SYMBOL(__list_add_valid_or_report);
__list_valid_slowpath
bool __list_del_entry_valid_or_report(struct list_head *entry)
{
struct list_head *prev, *next;
prev = entry->prev;
next = entry->next;
if (CHECK_DATA_CORRUPTION(next == NULL,
"list_del corruption, %px->next is NULL\n", entry) ||
CHECK_DATA_CORRUPTION(prev == NULL,
"list_del corruption, %px->prev is NULL\n", entry) ||
CHECK_DATA_CORRUPTION(next == LIST_POISON1,
"list_del corruption, %px->next is LIST_POISON1 (%px)\n",
entry, LIST_POISON1) ||
CHECK_DATA_CORRUPTION(prev == LIST_POISON2,
"list_del corruption, %px->prev is LIST_POISON2 (%px)\n",
entry, LIST_POISON2) ||
CHECK_DATA_CORRUPTION(prev->next != entry,
"list_del corruption. prev->next should be %px, but was %px. (prev=%px)\n",
entry, prev->next, prev) ||
CHECK_DATA_CORRUPTION(next->prev != entry,
"list_del corruption. next->prev should be %px, but was %px. (next=%px)\n",
entry, next->prev, next))
return false;
return true;
}
EXPORT_SYMBOL(__list_del_entry_valid_or_report);