Unverified Commit 7cb20f21 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!11684 binder: fix UAF caused by offsets overwrite 

Merge Pull Request from: @ci-robot 
 
PR sync from: Wupeng Ma <mawupeng1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/XND6GIGRO5TBFXHYYRHGSBAPTUBZV4M3/ 
 
https://gitee.com/src-openeuler/kernel/issues/IARY7V 
 
Link:https://gitee.com/openeuler/kernel/pulls/11684

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 7bf2958a 29d18f27

drivers/android/binder.c

+1 −0
Original line number Diff line number Diff line
@@ -3530,6 +3530,7 @@ static void binder_transaction(struct binder_proc *proc, 
		 */

		copy_size = object_offset - user_offset;

		if (copy_size && (user_offset > object_offset ||

				object_offset > tr->data_size ||

				binder_alloc_copy_user_to_buffer(

					&target_proc->alloc,

					t->buffer, user_offset,