| Message ID | 20240619154530.163232-13-iii@linux.ibm.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | kmsan: Enable on s390 | expand |
On Wed, Jun 19, 2024 at 5:45 PM Ilya Leoshkevich <iii@linux.ibm.com> wrote: > > Add a wrapper for memset() that prevents unpoisoning. This is useful > for filling memory allocator redzones. > > Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Alexander Potapenko <glider@google.com> > --- > include/linux/kmsan.h | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/include/linux/kmsan.h b/include/linux/kmsan.h > index 23de1b3d6aee..5f50885f2023 100644 > --- a/include/linux/kmsan.h > +++ b/include/linux/kmsan.h > @@ -255,6 +255,14 @@ void kmsan_enable_current(void); > */ > void kmsan_disable_current(void); > > +/* > + * memset_no_sanitize_memory(): memset() without KMSAN instrumentation. > + */ Please make this a doc comment, like in the rest of the file. (Please also fix kmsan_enable_current/kmsan_disable_current in the respective patch)
diff --git a/include/linux/kmsan.h b/include/linux/kmsan.h index 23de1b3d6aee..5f50885f2023 100644 --- a/include/linux/kmsan.h +++ b/include/linux/kmsan.h @@ -255,6 +255,14 @@ void kmsan_enable_current(void); */ void kmsan_disable_current(void); +/* + * memset_no_sanitize_memory(): memset() without KMSAN instrumentation. + */ +static inline void *memset_no_sanitize_memory(void *s, int c, size_t n) +{ + return __memset(s, c, n); +} + #else static inline void kmsan_init_shadow(void) @@ -362,6 +370,11 @@ static inline void kmsan_disable_current(void) { } +static inline void *memset_no_sanitize_memory(void *s, int c, size_t n) +{ + return memset(s, c, n); +} + #endif #endif /* _LINUX_KMSAN_H */
Add a wrapper for memset() that prevents unpoisoning. This is useful for filling memory allocator redzones. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> --- include/linux/kmsan.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)