diff options
| -rw-r--r-- | MAINTAINERS | 14 | ||||
| -rw-r--r-- | include/linux/kasan-checks.h | 12 | ||||
| -rw-r--r-- | mm/kasan/kasan.c | 12 |
3 files changed, 38 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index e1e620dd3f78..263e4dfb3fb0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5982,6 +5982,20 @@ S: Maintained F: Documentation/hwmon/k8temp F: drivers/hwmon/k8temp.c +KASAN +M: Andrey Ryabinin <aryabinin@virtuozzo.com> +R: Alexander Potapenko <glider@google.com> +R: Dmitry Vyukov <dvyukov@google.com> +L: kasan-dev@googlegroups.com +S: Maintained +F: arch/*/include/asm/kasan.h +F: arch/*/mm/kasan_init* +F: Documentation/kasan.txt +F: include/linux/kasan*.h +F: lib/test_kasan.c +F: mm/kasan/ +F: scripts/Makefile.kasan + KCONFIG M: "Yann E. MORIN" <yann.morin.1998@free.fr> L: linux-kbuild@vger.kernel.org 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 diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index e5beb40d97b1..18b6a2b8d183 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -299,6 +299,18 @@ static void check_memory_region(unsigned long addr, check_memory_region_inline(addr, size, write, ret_ip); } +void kasan_check_read(const void *p, unsigned int size) +{ + check_memory_region((unsigned long)p, size, false, _RET_IP_); +} +EXPORT_SYMBOL(kasan_check_read); + +void kasan_check_write(const void *p, unsigned int size) +{ + check_memory_region((unsigned long)p, size, true, _RET_IP_); +} +EXPORT_SYMBOL(kasan_check_write); + #undef memset void *memset(void *addr, int c, size_t len) { |