Messages in this thread Patch in this message | | | From | andrey.konovalov@linux ... | Subject | [PATCH 3/5] kasan: use unchecked __memset internally | Date | Fri, 6 Oct 2023 17:18:44 +0200 |
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From: Andrey Konovalov <andreyknvl@google.com>
KASAN code is supposed to use the unchecked __memset implementation when accessing its metadata.
Change uses of memset to __memset in mm/kasan/.
Signed-off-by: Andrey Konovalov <andreyknvl@google.com> --- mm/kasan/report.c | 4 ++-- mm/kasan/shadow.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index ca4b6ff080a6..12557ffee90b 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -538,7 +538,7 @@ void kasan_report_invalid_free(void *ptr, unsigned long ip, enum kasan_report_ty start_report(&flags, true); - memset(&info, 0, sizeof(info)); + __memset(&info, 0, sizeof(info)); info.type = type; info.access_addr = ptr; info.access_size = 0; @@ -576,7 +576,7 @@ bool kasan_report(const void *addr, size_t size, bool is_write, start_report(&irq_flags, true); - memset(&info, 0, sizeof(info)); + __memset(&info, 0, sizeof(info)); info.type = KASAN_REPORT_ACCESS; info.access_addr = addr; info.access_size = size; diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index dd772f9d0f08..d687f09a7ae3 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -324,7 +324,7 @@ static int kasan_populate_vmalloc_pte(pte_t *ptep, unsigned long addr, if (!page) return -ENOMEM; - memset((void *)page, KASAN_VMALLOC_INVALID, PAGE_SIZE); + __memset((void *)page, KASAN_VMALLOC_INVALID, PAGE_SIZE); pte = pfn_pte(PFN_DOWN(__pa(page)), PAGE_KERNEL); spin_lock(&init_mm.page_table_lock); -- 2.25.1
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