The quilt patch titled Subject: kasan: use unchecked __memset internally has been removed from the -mm tree. Its filename was kasan-use-unchecked-__memset-internally.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Andrey Konovalov <andreyknvl@xxxxxxxxxx> Subject: kasan: use unchecked __memset internally Date: Fri, 6 Oct 2023 17:18:44 +0200 KASAN code is supposed to use the unchecked __memset implementation when accessing its metadata. Change uses of memset to __memset in mm/kasan/. Link: https://lkml.kernel.org/r/6f621966c6f52241b5aaa7220c348be90c075371.1696605143.git.andreyknvl@xxxxxxxxxx Fixes: 59e6e098d1c1 ("kasan: introduce kasan_complete_mode_report_info") Fixes: 3c5c3cfb9ef4 ("kasan: support backing vmalloc space with real shadow memory") Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> Reviewed-by: Marco Elver <elver@xxxxxxxxxx> Cc: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/kasan/report.c | 4 ++-- mm/kasan/shadow.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) --- a/mm/kasan/report.c~kasan-use-unchecked-__memset-internally +++ a/mm/kasan/report.c @@ -538,7 +538,7 @@ void kasan_report_invalid_free(void *ptr 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 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; --- a/mm/kasan/shadow.c~kasan-use-unchecked-__memset-internally +++ a/mm/kasan/shadow.c @@ -324,7 +324,7 @@ static int kasan_populate_vmalloc_pte(pt 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); _ Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are