Release 4.10 lib/list_debug.c
/*
* 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)
{
CHECK_DATA_CORRUPTION(next->prev != prev,
"list_add corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
prev, next->prev, next);
CHECK_DATA_CORRUPTION(prev->next != next,
"list_add corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
next, prev->next, prev);
CHECK_DATA_CORRUPTION(new == prev || new == next,
"list_add double add: new=%p, prev=%p, next=%p.\n",
new, prev, next);
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave jones | dave jones | 52 | 65.00% | 3 | 50.00% |
| chris metcalf | chris metcalf | 18 | 22.50% | 1 | 16.67% |
| kees cook | kees cook | 10 | 12.50% | 2 | 33.33% |
| Total | 80 | 100.00% | 6 | 100.00% |
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;
CHECK_DATA_CORRUPTION(next == LIST_POISON1,
"list_del corruption, %p->next is LIST_POISON1 (%p)\n",
entry, LIST_POISON1);
CHECK_DATA_CORRUPTION(prev == LIST_POISON2,
"list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
entry, LIST_POISON2);
CHECK_DATA_CORRUPTION(prev->next != entry,
"list_del corruption. prev->next should be %p, but was %p\n",
entry, prev->next);
CHECK_DATA_CORRUPTION(next->prev != entry,
"list_del corruption. next->prev should be %p, but was %p\n",
entry, next->prev);
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave jones | dave jones | 38 | 40.86% | 2 | 33.33% |
| linus torvalds | linus torvalds | 25 | 26.88% | 1 | 16.67% |
| baruch siach | baruch siach | 16 | 17.20% | 1 | 16.67% |
| kees cook | kees cook | 14 | 15.05% | 2 | 33.33% |
| Total | 93 | 100.00% | 6 | 100.00% |
EXPORT_SYMBOL(__list_del_entry_valid);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave jones | dave jones | 106 | 53.00% | 4 | 30.77% |
| kees cook | kees cook | 28 | 14.00% | 3 | 23.08% |
| linus torvalds | linus torvalds | 25 | 12.50% | 1 | 7.69% |
| chris metcalf | chris metcalf | 18 | 9.00% | 1 | 7.69% |
| baruch siach | baruch siach | 16 | 8.00% | 1 | 7.69% |
| paul gortmaker | paul gortmaker | 7 | 3.50% | 3 | 23.08% |
| Total | 200 | 100.00% | 13 | 100.00% |
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