Commit be7c7b2c authored Sep 25, 2018 by Yajun Li Committed by Gerrit - the friendly Code Review server Sep 27, 2018

soc: hab: fix mmap failure issue when hab import



If hab client import the same buffer with different
size, only checking pages_list->index is not enough,
so add the buffer size checking.

Change-Id: I92d16d124e69131cee9b81a49dc9fa02075a96b6
Signed-off-by: Yajun Li <yajunl@codeaurora.org>

parent 7c445f53

drivers/soc/qcom/hab/hab_mem_linux.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -738,7 +738,8 @@ int habmem_imp_hyp_mmap(struct file filp, struct vm_area_struct vma)

		read_lock(&imp_ctx->implist_lock);
		list_for_each_entry(pglist, &imp_ctx->imp_list, list) {
		if (pglist->index == vma->vm_pgoff) {
		if ((pglist->index == vma->vm_pgoff) &&
		((length <= pglist->npages * PAGE_SIZE))) {
		bfound = 1;
		break;
		}