In get_mergeable_page() local variable page is not initialized, it may hold a garbage value, when find_mergeable_vma() return NULL, get_mergeable_page() may return a garbage value to the caller. So initialize page as NULL. Signed-off-by: Jianguo Wu <wujianguo@xxxxxxxxxx> --- mm/ksm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/ksm.c b/mm/ksm.c index b6afe0c..87efbae 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -460,7 +460,7 @@ static struct page *get_mergeable_page(struct rmap_item *rmap_item) struct mm_struct *mm = rmap_item->mm; unsigned long addr = rmap_item->address; struct vm_area_struct *vma; - struct page *page; + struct page *page = NULL; down_read(&mm->mmap_sem); vma = find_mergeable_vma(mm, addr); -- 1.7.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>