Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Dave Jones |
103 |
40.55% |
4 |
23.53% |
| Guenter Roeck |
40 |
15.75% |
1 |
5.88% |
| Kees Cook |
38 |
14.96% |
4 |
23.53% |
| Linus Torvalds |
23 |
9.06% |
1 |
5.88% |
| Baruch Siach |
16 |
6.30% |
1 |
5.88% |
| Chris Metcalf |
16 |
6.30% |
1 |
5.88% |
| Paul Gortmaker |
7 |
2.76% |
3 |
17.65% |
| Zhen Lei |
6 |
2.36% |
1 |
5.88% |
| Matthew Wilcox |
5 |
1.97% |
1 |
5.88% |
| Total |
254 |
|
17 |
|
/*
* Copyright 2006, Red Hat, Inc., Dave Jones
* Released under the General Public License (GPL).
*
* This file contains the linked list validation for 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).
*/
bool __list_add_valid(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);
bool __list_del_entry_valid(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);