diff options
| author | Andrey Ryabinin <[email protected]> | 2016-05-20 16:59:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-05-20 17:58:30 -0700 |
| commit | 64f8ebaf115bcddc4aaa902f981c57ba6506bc42 (patch) | |
| tree | 11f1cba5bc8867e085236ff96861ced9a29c943e /include/linux | |
| parent | 936bb4bbbb832f81055328b84e5afe1fc7246a8d (diff) | |
mm/kasan: add API to check memory regions
Memory access coded in an assembly won't be seen by KASAN as a compiler
can instrument only C code. Add kasan_check_[read,write]() API which is
going to be used to check a certain memory range.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Andrey Ryabinin <[email protected]>
Acked-by: Alexander Potapenko <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kasan-checks.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/kasan-checks.h b/include/linux/kasan-checks.h new file mode 100644 index 000000000000..b7f8aced7870 --- /dev/null +++ b/include/linux/kasan-checks.h @@ -0,0 +1,12 @@ +#ifndef _LINUX_KASAN_CHECKS_H +#define _LINUX_KASAN_CHECKS_H + +#ifdef CONFIG_KASAN +void kasan_check_read(const void *p, unsigned int size); +void kasan_check_write(const void *p, unsigned int size); +#else +static inline void kasan_check_read(const void *p, unsigned int size) { } +static inline void kasan_check_write(const void *p, unsigned int size) { } +#endif + +#endif |