diff options
Diffstat (limited to 'arch/loongarch/mm/mmap.c')
| -rw-r--r-- | arch/loongarch/mm/mmap.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/loongarch/mm/mmap.c b/arch/loongarch/mm/mmap.c index a9630a81b38a..889030985135 100644 --- a/arch/loongarch/mm/mmap.c +++ b/arch/loongarch/mm/mmap.c @@ -4,6 +4,7 @@ */ #include <linux/export.h> #include <linux/io.h> +#include <linux/kfence.h> #include <linux/memblock.h> #include <linux/mm.h> #include <linux/mman.h> @@ -24,7 +25,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, struct vm_area_struct *vma; unsigned long addr = addr0; int do_color_align; - struct vm_unmapped_area_info info; + struct vm_unmapped_area_info info = {}; if (unlikely(len > TASK_SIZE)) return -ENOMEM; @@ -82,7 +83,6 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, */ } - info.flags = 0; info.low_limit = mm->mmap_base; info.high_limit = TASK_SIZE; return vm_unmapped_area(&info); @@ -111,6 +111,9 @@ int __virt_addr_valid(volatile void *kaddr) { unsigned long vaddr = (unsigned long)kaddr; + if (is_kfence_address((void *)kaddr)) + return 1; + if ((vaddr < PAGE_OFFSET) || (vaddr >= vm_map_base)) return 0; |