Unverified Commit f6374604 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!15473 iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Xiongfeng Wang <wangxiongfeng2@huawei.com>
https://mailweb.openeuler.org/archives/list/kernel@openeuler.org/message/23LZZOQPVZYHMYM6NV7NUUP4N3PJLVNH/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBPBI4 
 
Link:https://gitee.com/openeuler/kernel/pulls/15473

 

Reviewed-by: default avatarXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 47a3978a ed85baab

drivers/iommu/iommufd/iova_bitmap.c

+1 −1
Original line number Diff line number Diff line
@@ -130,7 +130,7 @@ struct iova_bitmap { 
static unsigned long iova_bitmap_offset_to_index(struct iova_bitmap *bitmap,

						 unsigned long iova)

{

	unsigned long pgsize = 1 << bitmap->mapped.pgshift;

	unsigned long pgsize = 1UL << bitmap->mapped.pgshift;



	return iova / (BITS_PER_TYPE(*bitmap->bitmap) * pgsize);

}